Stabilized polyvinyl chloride

The invention relates to a PVC composition comprising a stabilizer combination of (b) polyDHP of the formula I ##STR1## where the radicals T, L, R, R', R" are as defined in claim 1, (c) a substance from the group consisting of PA2 crystalline hydrotalcites, PA2 crystalline or amorphous zeolites, PA2 crystalline or amorphous dawsonites, magadiites or kenyaites, disaccharide alcohols and PA2 sterically hindered amines containing the structural unit ##STR2## in which R.degree. is hydrogen or methyl, and (d) at least one zinc, aluminium or lanthanoid compound.

The invention relates to PVC (polyvinyl chloride) containing polyDHP 
(polydihydropyridine) compounds of the formula I, at least one substance 
from the group consisting of hydrotalcites, dawsonites, magadiites, 
kenyaites, zeolites, disaccharide alcohols and sterically hindered amines, 
and at least one zinc, aluminium or lanthanoid compound, to a process for 
the preparation thereof, and to the use thereof. 
PVC can be stabilized by a number of additives. Compounds of lead and 
cadmium are particularly suitable for this purpose, but are contentious 
today for ecological reasons owing to the heavy-metal content (cf. 
"Plastics Additives", Editors R. Gachter and H. Muller, Hanser Verlag, 3rd 
Edition, 1990, pages 287-295 and Kunststoff-Handbuch PVC Plastics 
Handbook PVC!, Volumes 1 and 2, Beck/Braun, Carl Hanser Verlag). 
The search is therefore continuing for effective stabilizers and stabilizer 
combinations. 
PolyDHP of the formula I shown below is known as a stabilizer for PVC. 
EP-B-0 286 887 describes such compounds as heat stabilizers for, in 
particular, rigid PVC mixtures containing, as further stabilizers, a 
lubricant, epoxidized soybean oil, zinc and calcium soaps, and organic 
costabilizers. 
It has now been found that PVC stabilized by a mixture of a polyDHP of the 
formula I, at least one substance from the group consisting of 
hydrotalcites, dawsonites, magadiites, kenyaites, zeolites, disaccharide 
alcohols and sterically hindered amines, and at least one zinc, aluminium 
or lanthanoid compound has excellent thermal stability with very good 
colour retention. It is particularly noteworthy that excellent paste 
stability and light stability are achieved. 
The invention relates to a compound comprising 
(a) PVC 
(b) at least one polyDHP compound of the formula I 
##STR3## 
in which T is C.sub.1 -C.sub.22 alkyl which is unsubstituted or 
substituted by C.sub.1 -C.sub.18 alkoxy, 
C.sub.1 -C.sub.18 alkylthio, hydroxyl, acryloyloxy, methacryloyloxy, 
halogen, phenyl or naphthyl; 
C.sub.5 -C.sub.10 aryl, which may also be heterocyclic and is unsubstituted 
or substituted by C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 alkoxy or 
halogen; 
C.sub.3 -C.sub.10 alkenyl, CH.sub.3 --CO--CH.sub.2 --CO--OR--, CH.sub.3 
--CO--CH.sub.2 --COO--R', 
CH.sub.3 --C(NR'".sub.2).dbd.CH-COOR--or CH.sub.3 
--C(NR'".sub.2).dbd.CHCO--O R'--, 
L is as defined for T or is a trivalent or polyvalent radical formed from a 
straight-chain or branched alkyl group which is unsubstituted or 
substituted by C.sub.1 -C.sub.12 alkoxy, 
C.sub.1 -C.sub.12 thioalkoxy, C.sub.6 -C.sub.10 aryl, C.sub.1 -C.sub.12 
carboxyl or hydroxyl, 
m and n are numbers from 0 to 20, 
k is 0 or 1, 
j is a number from 1 to 6 and the conditions j (k+m+n)&gt;1 and m+n&gt;0 are 
fulfilled, 
R and R', independently of one another, are methylene or phenylene or an 
alkylene group of the -(-C.sub.p H.sub.2p -X-).sub.t C.sub.p H.sub.2p - 
type which is unsubstituted or carries substituents from the series 
consisting of C.sub.1 -C.sub.12 alkoxy, C.sub.1 -C.sub.12 thioalkoxy, 
C.sub.6 -C.sub.10 aryl, C.sub.1 -C.sub.12 carboxyl and hydroxyl, 
p is from 2 to 18, 
t is from 0 to 10, 
X is oxygen or sulfur 
or, if k is 0 and j &gt;1, R and R', together with L, are a direct bond, 
R" is hydrogen or C.sub.6 -C.sub.10 aryl, C.sub.2 -C.sub.18 alkoxycarbonyl 
or C.sub.1 -C.sub.18 alkyl which is unsubstituted or substituted by one or 
more C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.8 alkoxy, halogen or NO.sub.2 
substituents, 
and the two R'" are identical or different and are hydrogen, C.sub.1 
-C.sub.18 alkyl, 
C.sub.1 -C.sub.18 hydroxyalkyl or C.sub.1 -C.sub.18 alkoxyalkyl or together 
are C.sub.3 -C.sub.5 alkylene which is uninterrupted or interrupted by O, 
or are straight-chain or branched C.sub.2 -C.sub.22 alkenyl, 
(c) at least one substance from the group consisting of 
crystalline hydrotalcites, 
crystalline or amorphous zeolites, 
crystalline or amorphous dawsonites, magadiites or kenyaites, 
disaccharide alcohols and 
sterically hindered amines containing the structural unit 
##STR4## 
in which R.degree. is hydrogen or methyl, and (d) at least one zinc, 
aluminium or lanthanoid compound. 
Any C.sub.1 -C.sub.18 alkyl or C.sub.1 -C.sub.22 alkyl radicals in the 
above formula I are branched or unbranched, cyclic or acyclic radicals. 
Examples thereof are methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, 
t-butyl, pentyl, cyclopentyl, isopentyl, hexyl, cyclohexyl, heptyl, 
3-heptyl, octyl, cyclooctyl, 2-ethylhexyl, nonyl, decyl, undecyl, dodecyl, 
cyclododecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, 
octadecyl, eicosyl, 2-ethylbutyl, 1-methylpentyl, 1,3-dimethylbutyl, 
1,1,3,3-tetramethylbutyl, 1-methylhexyl, isoheptyl, 1-methylheptyl, 
1,1,3-trimethylhexyl or 1-methylundecyl; these radicals preferably have 
1-12 carbon atoms, in particular 1-8 carbon atoms. 
Further alkyl groups in above formulae have the same illustrative meanings 
apart from the corresponding number of carbon atoms. Alkoxy and thioalkoxy 
or alkylthio radicals are derived from such alkyl groups by in each case 
adding an oxygen or sulfur atom to the O-alkyl or S-alkyl group. 
C.sub.3 -C.sub.10 alkenyl can be branched or unbranched and is, for 
example, allyl, 2-methallyl, hexenyl or octenyl. C.sub.2 -C.sub.22 Alkenyl 
can likewise be branched or unbranched and can additionally be, for 
example, undecenyl, heptadecenyl or oleyl. 
Any halogen substitutents in the formula I are taken to be fluorine, 
chlorine, bromine or iodine, in particular F, Cl or Br, especially Cl. 
Cyclic alkyl radicals preferably have 5 to 12 carbon atoms in the ring and 
carry, if desired, 1 to 3 alkyl substituents, preferably methyl or ethyl 
groups. Preference is given by cyclopentyl and cyclohexyl, in particular 
cyclohexyl. 
C.sub.6 -C.sub.10 aryl is, for example, phenyl or .alpha.- or 
.beta.-naphthyl, each of which is unsubstituted or substituted by halogen 
or C.sub.1 -C.sub.4 alkyl. 
C.sub.5 -C.sub.10 aryl, which may be heterocyclic, can be, for example, 
pyrryl, phenyl, naphthyl, pyridyl, morpholinyl, furyl, thiazolyl or 
indolyl. 
Examples of C.sub.2 -C.sub.12 carboxyl radicals are derived from carboxylic 
acids as described in detail below under carboxylates (metal soaps). 
Component (a) is taken to mean PVC in the broader sense, i.e. including 
blends, copolymers and graft polymers of PVC with polymerizable compounds, 
such as acrylonitrile, vinyl acetate or ABS; the PVC can be a suspension, 
bulk or emulsion polymer or a mixture thereof. Preference is given to PVC 
as a suspension, emulsion or bulk polymer, also in combination with 
polyacrylates. 
Component (b) is preferably at least one compound of the formula I in which 
T and L, independently of one another, are C.sub.1 -C.sub.18 alkyl, m, k 
and j are 1, n is 0, R is --(CH.sub.2).sub.2 --, (CH.sub.2).sub.4 or 
--(CH.sub.2).sub.2 --S--(CH.sub.2).sub.2 --, and R" is hydrogen. The 
polyDHP compounds of the formula I can expediently be present in the 
compositions in an amount of from 0.001 to 5 parts by weight, preferably 
from 0.01 to 0.5 part by weight, based on 100 parts by weight of PVC. 
Component (c): 
Suitable compounds from the series consisting of the hydrotalcits, 
zeolites, dawsonites, magadiites and kenyaites are both naturally 
occurring minerals and synthetic compounds. 
Compounds from the series consisting of the hydrotalcites can be described 
by the general formula III 
EQU M.sup.2+.sub.1-x.M.sup.3+.sub.x.(OH).sub.2.(A.sup.b-).sub.x.sbsb./b.dH.sub. 
2 O (III) 
where 
M.sup.2+ is Mg, Ca, Sr, Zn, Sn and/or Ni, 
M.sup.3+ is Al, B or Bi, 
A.sup.b- is an anion having the valence b, 
b is a number from 1 to 4, 
x is a number from 0 to 0.5, and 
d is a number from 0 to 2. 
A.sup.b- is preferably OH.sup.-, Cl.sup.-, Br.sup.-, I.sup.-, 
ClO.sub.4.sup.-, HCO.sub.3.sup.-, CH.sub.3 COO.sup.-, C.sub.6 H.sub.5 
COO.sup.-, CO.sub.3.sup.2-, SO.sub.4.sup.2-, 
##STR5## 
(CHOHCOO).sub.2.sup.2-, (CHOH).sub.4 CH.sub.2 OHCOO.sup.-. C.sub.2 H.sub.4 
(COO).sub.2.sup.2-, (CH.sub.2 COO).sub.2.sup.2-, CH.sub.3 CHOHCOO.sup.-, 
SiO.sub.3.sup.2-, SiO.sub.4.sup.4-, Fe(CN).sub.6.sup.3-, 
Fe(CN).sub.6.sup.4- or HPO.sub.4.sup.2- ; further examples are given in 
DE 4 106 403. 
Other hydrotalcites which can preferably be used are compounds having the 
general formula IIIa 
EQU M.sub.v.sup.2+ Al.sub.2 (OH).sub.2v+6bz (A.sup.b-).sub.2 sH.sub.2 O.(IIIa) 
where M.sup.2+ is at least one metal from the series consisting of Mg and 
Zn, 
A.sup.b- is an anion from the series consisting of 
##STR6## 
OH.sup.- and S.sup.2-, where b is the valence of the anion, s is a 
positive number, preferably from 0.5 to 5, 
v is from 2 to 6 and z is less than 2. 
Preference is given to compounds from the series consisting of the 
hydrotalcites of the general formula III 
EQU M.sup.2+.sub.1-x.M.sup.3+.sub.x.(OH).sub.2.(A.sup.b-).sub.x.sbsb./b.dH.sub. 
2 O (III) 
where M.sup.2+ is Mg or a solid solution of Mg and Zn, A.sup.b- is 
CO.sub.3.sup.2-, x is a number from 0 to 0.5, and d is a number from 0 to 
2. 
Very particular preference is given to hydrotalcites of the formulae 
EQU Al.sub.2 O.sub.3.6MgO.CO.sub.2.12H.sub.2 O, 
EQU Mg.sub.4.5 Al.sub.2 (OH).sub.13.CO.sub.3.3.5H.sub.2 O, 
EQU 4MgO.Al.sub.2 O.sub.3.CO.sub.2.9H.sub.2 O, 
EQU 4MgO.Al.sub.2 O.sub.3.CO.sub.2.6H.sub.2 O, 
EQU ZnO.3MgO.Al.sub.2 O.sub.3.CO.sub.2.8-9H.sub.2 O or 
EQU ZnO.3MgO.Al.sub.2 O.sub.3.CO.sub.2.5-6H.sub.2 O. 
The hydrotalcites can be used in an amount of, for example, from 0.1 to 20 
parts by weight, preferably from 0.1 to 10 parts by weight, in particular 
from 0.1 to 5 parts by weight, based on 100 parts by weight of PVC. 
Zeolites can be described by the general formula (X) 
EQU M.sub.q/a (AlO.sub.2).sub.q (SiO.sub.2).sub.r !.wH.sub.2 O(X) 
where a is the charge of the cation M, 
M is an element from the first or second main group, or zinc, 
q:r is a number between 0.8 and infinity, preferably between 0.8 and 10.5, 
and 
w is a number between 0 and 300. 
Furthermore, zeolites which can be used according to the invention are 
disclosed in "Atlas of Zeolite Structure Types", W. M. Meier and D. H. 
Olson, Butterworths, 3rd Edition, 1992. 
Zeolites in the broader sense also include aluminium phosphates having a 
zeolite structure. 
The preferred zeolites which are known per se have an average effective 
pore diameter of 3-5 .ANG. and can be prepared by known methods. 
Particular preference is given to zeolites of the type NaA which have an 
average effective pore diameter of 4 .ANG., and are therefore known as 
zeolites 4A. 
Particular preference is given to crystalline sodium aluminosilicates whose 
particle size is at least predominantly in the range from 1 to 10 .mu.m. 
Preference is given to zeolites of the formulae 
EQU Na.sub.12 Al.sub.12 Si.sub.12 O.sub.48.27H.sub.2 Ozeolite A!, 
EQU Na.sub.6 Al.sub.6 Si.sub.6 O.sub.24.2NaX.7.5H.sub.2 O, 
X.dbd.OH,halogen,ClO.sub.4 sodalite! 
EQU Na.sub.6 Al.sub.6 Si.sub.30 O.sub.72.24H.sub.2 O, 
EQU Na.sub.8 Al.sub.8 Si.sub.40 O.sub.96.24H.sub.2 O, 
EQU Na.sub.16 Al.sub.16 Si.sub.24 O.sub.80.16H.sub.2 O, 
EQU Na.sub.16 Al.sub.16 Si.sub.32 O.sub.96.16H.sub.2 O, 
EQU Na.sub.56 Al.sub.56 Si.sub.136 O.sub.384.250H.sub.2 O,zeolite Y! 
EQU Na.sub.86 Al.sub.86 Si.sub.106 O.sub.384.264H.sub.2 Ozeolite X! 
and the zeolites which can be prepared by replacement of all or some of the 
sodium atoms by lithium, potassium, magnesium, calcium, strontium or zinc 
atoms, such as 
EQU (Na,K).sub.10 Al.sub.10 Si.sub.22 O.sub.64.20H.sub.2 O. 
EQU Ca.sub.4.5 Na.sub.3 (AlO.sub.2).sub.12 (SiO.sub.2).sub.12 !.30H.sub.2 O 
EQU K.sub.9 Na.sub.3 (AlO.sub.2).sub.12 (SiO.sub.2).sub.12 !.27H.sub.2 O. 
The zeolites can be used in an amount of, for example, from 0.1 to 20 parts 
by weight, preferably from 0.1 to 10 parts by weight, in particular from 
0.1 to 5 parts by weight, based on 100 parts by weight of PVC. 
Dawsonites are taken to mean aluminocarbonates of the formula Na(or K or 
Li)Al(OH).sub.2 CO.sub.3 !.n H.sub.2 O, where n is a number from 0 to 30. 
They can be added to the PVC in the same amounts as the zeolites. 
Magadiites are taken to mean compounds of the formula Na.sub.2 Si.sub.14 
O.sub.29.n H.sub.2 O or Na.sub.2 Si.sub.8 O.sub.17.n H.sub.2 O, where n is 
a number from 0 to 30. They can be added to the PVC in the same amounts as 
the zeolites. 
Kenyaites are taken to mean compounds of the formula Na.sub.2 Si.sub.22 
O.sub.45.n H.sub.2 O, where n is a number from 0 to 30. They can be added 
to the PVC in the same amounts as the zeolites. 
Disaccharide alcohols can be described by the formula C.sub.6 H.sub.11 
O.sub.6.C.sub.6 H.sub.13 O.sub.5. Examples of disaccharide alcohols are 
maltitol, malbitol, lactitol, palatinol, isomaltitol, isomaltol, leucrose, 
dihydroleucrose, glucopyranosylsorbitol, glucopyranosylmannitol and 
lycasine (dehydrated). Very particular preference is given to maltitol, 
lactitol, isomaltitol and palatinol. They can be added to the PVC in the 
same amounts as the zeolites. 
Sterically hindered amines are compounds from the series consisting of 
derivatives of polyalkylpiperidines containing at least one structural 
unit of the formula II; the polyalkylpiperidinyl groups of the formula II 
are preferably substituted in the 4-position by one or two polar 
substituents or a polar spiro ring system. 
Particular preference is given to polymer compositions as described above 
wherein the polyalkylpiperidine derivative is a derivative of 
2,2,6,6-tetramethylpiperidine (R.degree.=H in the formula II). 
Of importance are in particular the following classes of 
polyalkylpiperidines which carry at least one group of the formula II, as 
mentioned above: 
(a) compounds of the formula IV 
##STR7## 
in which n is a number from 1 to 4, preferably 1 or 2, R is hydrogen or 
methyl, R.sub.11 is hydrogen, N-oxide, hydroxyl, C.sub.1 -C.sub.12 alkyl, 
C.sub.3 C.sub.8 alkenyl, C.sub.3 -C.sub.8 alkynyl, C.sub.7 -C.sub.12 
aralkyl, C.sub.1 -C.sub.18 alkoxy, C.sub.5 -C.sub.8 cycloalkoxy, C.sub.7 
C.sub.9 phenylalkoxy, C.sub.1 -C.sub.8 alkanoyl, C.sub.3 -C.sub.5 
alkenoyl, C.sub.1 -C.sub.18 alkanoyloxy, benzoxy, glycidyl or a group 
--CH.sub.2 CH(OH)--Z, in which Z is hydrogen, methyl or phenyl, where 
R.sub.11 is preferably H, C.sub.1 -C.sub.4 alkyl, allyl, benzyl, acetyl or 
acryloyl, and R.sub.12, in the case where n is 1, is hydrogen, C.sub.1 
-C.sub.18 alkyl which may be interrupted by one or more oxygen atoms, 
cyanoethyl, benzyl, glycidyl, a monovalent radical of an aliphatic, 
cycloaliphatic, araliphatic, unsaturated or aromatic carboxylic acid, 
carbamic acid, or phosphorus-containing acid, or a monovalent silyl 
radical, preferably a radical of an aliphatic carboxylic acid having 2 to 
18 C atoms, of a cycloaliphatic carboxylic acid having 7 to 15 C atoms, of 
an .alpha.,.beta.-unsaturated carboxylic acid having 3 to 5 C atoms or of 
an aromatic carboxylic acid having 7 to 15 C atoms, R.sub.12, in the case 
where n is 2, is C.sub.2 -C.sub.12 alkylene, C.sub.4 -C.sub.12 alkenylene, 
xylylene, a divalent radical of an aliphatic, cycloaliphatic, araliphatic 
or aromatic dicarboxylic acid, dicarbamic acid, or phosphorus-containing 
acid, or a divalent silyl radical, preferably a radical of an aliphatic 
dicarboxylic acid having 2 to 36 C atoms, of a cycloaliphatic or aromatic 
dicarboxylic acid having 8-14 C atoms or of an aliphatic, cycloaliphatic 
or aromatic dicarbamic acid having 8-14 C atoms, R.sub.12 is, in the case 
where n is 3, a trivalent radical of an aliphatic, cycloaliphatic or 
aromatic tricarboxylicacid, of an aromatic tricarbamic acid or of a 
phosphorus-containing acid, or a trivalent silyl radical, and R.sub.12 is, 
in the case where n is 4, a tetravalent radical of an aliphatic, 
cycloaliphatic or aromatic tetracarboxylic acid. 
Any C.sub.1 -C.sub.12 alkyl substituents present are, for example, methyl, 
ethyl, n-propyl, n-butyl, sec-butyl, tert-butyl, n-hexyl, n-octyl, 
2-ethylhexyl, n-nonyl, n-decyl, n-undecyl or n-dodecyl. 
Examples of R.sub.11 or R.sub.12 as C.sub.1 -C.sub.18 alkyl are the groups 
listed above and in addition, for example, n-tridecyl, n-tetradecyl, 
n-hexadecyl and n-octadecyl. 
Examples of R.sub.11 as C.sub.3 -C.sub.8 alkenyl are 1-propenyl, allyl, 
methallyl, 2-butenyl, 2-pentenyl, 2-hexenyl, 2-octenyl and 
4-tert-butyl-2-butenyl. 
R.sub.11 as C.sub.3 -C.sub.8 alkynyl is preferably propargyl. 
R.sub.11 as C.sub.7 -C.sub.12 aralkyl is in particular phenethyl and 
especially benzyl. 
Examples of R.sub.11 as C.sub.1 -C.sub.8 alkanoyl are formyl, propionyl, 
butyryl, octanoyl, but preferably acetyl and as C.sub.3 -C.sub.5 alkenoyl 
in particular acryloyl. 
R.sub.12 as a monovalent radical of a carboxylic acid is, for example, an 
acetic acid, caproic acid, stearic acid, acrylic acid, methacrylic acid, 
benzoic acid or .beta.-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid 
radical. 
R.sub.12 as a divalent radical of a dicarboxylic acid is, for example, a 
malonic acid, succinic acid, glutaric acid, adipic acid, suberic acid, 
sebacic acid, maleic acid, itaconic acid, phthalic acid, dibutylmalonic 
acid, dibenzylmalonic acid, 
butyl(3,5-di-tert-butyl-4-hydroxybenzyl)malonic acid or 
bicycloheptenedicarboxylic acid radical. 
R.sub.12 as a trivalent radical of a tricarboxylic acid is, for example, a 
trimellitic acid, citric acid or nitrilotriacetic acid radical. 
R.sub.12 as a tetravalent radical of a tetracarboxylic acid is, for 
example, the tetravalent radical of butane-1,2,3,4-tetracarboxylic acid or 
of pyromellitic acid. 
R.sub.12 as a divalent radical of a dicarbamic acid is, for example, a 
hexamethylenedicarbamic acid or a 2,4-toluylenedicarbamic acid radical. 
Preference is given to compounds of the formula IV in which R is hydrogen, 
R.sub.11 is hydrogen or methyl, n is 2, and R.sub.12 is the diacyl radical 
of an aliphatic dicarboxylic acid having 4-12 C atoms. 
Examples of polyalkylpiperidine compounds of this class are the following 
compounds: 
1) 4-hydroxy-2,2,6,6-tetramethylpiperidine 
2) 1-allyl-4-hydroxy-2,2,6,6-tetramethylpiperidine 
3) 1-benzyl-4-hydroxy-2,2,6,6-tetramethylpiperidine 
4) 1-(4-tert-butyl-2-butenyl)-4-hydroxy-2,2,6,6-tetramethylpiperidine 
5) 4-stearoyloxy-2,2,6,6-tetramethylpiperidine 
6) 1-ethyl-4-salicyloyloxy-2,2,6,6-tetramethylpiperidine 
7) 4-methacryloyloxy-1,2,2,6,6-pentamethylpiperidine 
8) 
1,2,2,6,6-pentamethylpiperidin-4-yl-.beta.-(3,5-di-tert-butyl-4-hydroxyphe 
nyl)propionate 
9) di(1-benzyl-2,2,6,6-tetramethylpiperidin-4-yl) maleate 
10) di(2,2,6,6-tetramethylpiperidin-.sup.4 -yl) succinate 
11) di(2,2,6,6-tetramethylpiperidin-4-yl) glutarate 
12) di(2,2,6,6-tetramethylpiperidin-4-yl) adipate 
13) di(2,2,6,6-tetramethylpiperidin-4-yl) sebacate 
14) di(1,2,2,6,6-pentamethylpiperidin-4-yl) sebacate 
15) di(1,2,3,6-tetramethyl-2,6-diethylpiperidin-4-yl) sebacate 
16) di(1-allyl-2,2,6,6-tetramethylpiperidin-4-yl) phthalate 
17) 1-hydroxy-4-.beta.-cyanoethyloxy-2,2,6,6-tetramethylpiperidine 
18) 1-acetyl-2,2,6,6-tetramethylpiperidin-4-yl acetate 
19) trimellitic acid tri(2,2,6,6-tetramethylpiperidin-4-yl) ester 
20) 1-acryloyl-4-benzyloxy-2,2,6,6-tetramethylpiperidine 
21) di(2,2,6,6-tetramethylpiperidin-4-yl) diethylmalonate 
22) di(1,2,2,6,6-pentamethylpiperidin-4-yl) dibutylmalonate 
23) di(1,2,2,6,6-pentamethylpiperidin-.sup.4 -yl) 
butyl(3,5-di-tert-butyl-4-hydroxybenzyl) malonate 
24) di(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl) sebacate 
25) di(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl) sebacate 
26) 
hexane-1',6'-bis(4-carbamoyloxy-1-n-butyl-2,2,6,6-tetramethylpiperidine) 
27) 
toluene-2',4'-bis(4-carbamoyloxy-1-n-propyl-2,2,6,6-tetramethylpiperidine) 
28) dimethylbis(2,2,6,6-tetramethylpiperidin-4-oxy)silane 
29) phenyltris(2,2,6,6-tetramethylpiperidin-4-oxy)silane 
30) tris(1-propyl-2,2,6,6-tetramethylpiperidin-4-yl) phosphite 
31) tris(1 -propyl-2,2,6,6-tetramethylpiperidin-4-yl) phosphate 
32) bis(1,2,2,6,6-pentamethylpiperidin-4-yl) phenylphosphonate 
33) 4-hydroxy-1,2,2,6,6-pentamethylpiperidine 
34) 4-hydroxy-N-hydroxyethyl-2,2,6,6-tetramethylpiperidine 
35) 4-hydroxy-N-(2-hydroxypropyl)-2,2,6,6-tetramethylpiperidine 
36) 1-glycidyl-4-hydroxy-2,2,6,6-tetramethylpiperidine 
(b) compounds of the formula (V) 
##STR8## 
in which n is 1 or 2, R and R.sub.11 are as defined under (a) R.sub.13 is 
hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.2 -C.sub.5 hydroxyalkyl, C.sub.5 
-C.sub.7 cycloalkyl, C.sub.7 -C.sub.8 aralkyl, C.sub.2 -C.sub.18 alkanoyl, 
C.sub.3 -C.sub.5 alkenoyl, benzoyl or a group of the formula 
##STR9## 
and R.sub.14, in the case where n is 1, is hydrogen, C.sub.1 -C.sub.8 
alkyl, C.sub.3 -C.sub.8 alkenyl, C.sub.5 -C.sub.7 cycloalkyl, C.sub.1 
-C.sub.4 alkyl which is substituted by a hydroxyl, cyano, alkoxycarbonyl 
or carbamide group, or is glycidyl, a group of the formula --CH.sub.2 
--CH(OH)--Z or of the formula --CONH--Z, in which Z is hydrogen, methyl or 
phenyl; 
R.sub.14, in the case where n is 2, is C.sub.2 -C.sub.12 alkylene, C.sub.6 
-C.sub.12 arylene, xylylene, a --CH.sub.2 --CH(OH)--CH.sub.2 -- group or a 
--CH.sub.2 --CH(OH)--CH.sub.2 --O--Y--O-- group, in which Y is C.sub.2 
-C.sub.10 alkylene, C.sub.6 -C.sub.15 arylene, C.sub.6 -C.sub.12 
cycloalkylene, or, provided R.sub.13 is not alkanoyl, alkenoyl or benzoyl, 
R.sub.14 can also be a divalent radical of an aliphatic, cycloaliphatic or 
aromatic dicarboxylic acid or dicarbamic acid or the group --CO--, or, in 
the case where n is 1, R.sub.13 and R14 together can be the divalent 
radical of an aliphatic, cycloaliphatic or aromatic 1,2- or 
1,3-dicarboxylic acid. 
Any C.sub.1 -C.sub.12 alkyl or C.sub.1 C.sub.18 alkyl substituents present 
are as already defined under (a). 
Any C.sub.5 -C.sub.7 cycloalkyl substitutents present are in particular 
cyclohexyl. 
R.sub.13 as C.sub.7 -C.sub.8 aralkyl is in particular phenylethyl or 
especially benzyl. R.sub.13 as C.sub.2 -C.sub.5 hydroxyalkyl is in 
particular 2-hydroxyethyl or 2-hydroxypropyl. 
Examples of R.sub.13 as C.sub.2 -C.sub.18 alkanoyl are propionyl, butyryl, 
octanoyl, dodecanoyl, hexadecanoyl, octadecanoyl, but preferably acetyl 
and, as C.sub.3 -C.sub.5 alkenoyl, in particular acryloyl. 
Examples of R.sub.14 as C.sub.2 -C.sub.8 alkenyl are allyl, methallyl, 
2-butenyl, 2-pentenyl, 2-hexenyl and 2-octenyl. 
Examples of R.sub.14 as C.sub.1 -C.sub.4 alkyl substituted by a hydroxyl, 
cyano, alkoxycarbonyl or carbamide group are 2-hydroxyethyl, 
2-hydroxypropyl, 2-cyanoethyl, methoxycarbonylmethyl, 
2-ethoxycarbonylethyl, 2-aminocarbonylpropyl and 
2-(dimethylaminocarbonyl)ethyl. 
Any C.sub.2 -C.sub.12 alkylene substituents present are, for example, 
ethylene, propylene, 2,2-dimethylpropylene, tetramethylene, hexamethylene, 
octamethylene, decamethylene or dodecamethylene. 
Any C.sub.6 -C.sub.15 arylene substituents present are, for example, o-, m- 
or p-phenylene, 1,4-naphthylene or 4,4'-diphenylene. 
C.sub.6 -C.sub.12 cycloalkylene is in particular cyclohexylene. 
Preference is given to compounds of the formula V in which n is 1 or 2, R 
is hydrogen, R.sub.11 is hydrogen or methyl, R.sub.13 is hydrogen, C.sub.1 
-C.sub.12 alkyl or a group of the formula 
##STR10## 
and R.sub.14, in the case where n is 1, is hydrogen or C.sub.1 -C.sub.12 
alkyl, and, in the case where n is 2, is C.sub.2 -C.sub.8 alkylene. 
Examples of polyalkylpiperidine compounds of this class are the following 
compounds: 
37) N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylene-1,6-diamine 
38) 
N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylene-1,6-diacetamide 
39) bis(2,2,6,6-tetramethylpiperidin-4-yl)amine 
40) 4-benzoylamino-2,2,6,6-tetramethylpiperidine 
41) N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)-N,N'-dibutyladipamide 
42) 
N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)-N,N'-dicyclohexyl-2-hydroxypro 
pylene-1,3-diamine 
43) N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)-p-xylylendiamine 
44) N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)succinediamide 
45) di(2,2,6,6-tetramethylpiperidin-4-yl) 
N-(2,2,6,6-tetramethylpiperidin-4-yl)-.beta.-aminodipropionate 
46) the compound of the formula 
##STR11## 
47) 4-bis(2-hydroxyethyl)amino!-1,2,2,6,6-pentamethylpiperidine 48) 
4-(3-methyl-4-hydroxy-5-tert-butylbenzamido)-2,2,6,6-tetramethylpiperidine 
49) 4-methacrylamido-1,2,2,6,6-pentamethylpiperidine 
(c) compounds of the formula (VI) 
##STR12## 
in which n is 1 or 2, R and R.sub.11 are as defined under (a), and 
R.sub.15, in the case where n is 1, is C.sub.2 -C.sub.8 alkylene or 
-hydroxyalkylene or C.sub.4 -C.sub.22 acyloxyalkylene, and, in the case 
where n is 2, is the group (--CH.sub.2).sub.2 C(CH.sub.2 --).sub.2. 
Examples of R.sub.15 as C.sub.2 -C.sub.8 alkylene or -hydroxyalkylene are 
ethylene, 1-methylethylene, propylene, 2-ethylpropylene and 
2-ethyl-2-hydroxymethylpropylene. 
An example of R.sub.15 as C.sub.4 -C.sub.22 acyloxyalkylene is 
2-ethyl-2-acetoxymethylpropylene. 
Examples of polyalkylpiperidine compounds of this class are the following 
compounds: 
50) 9-aza-8,8,10,10-tetramethyl-1,5-dioxaspiro5.5!undecane 
51) 9-aza-8,8,10,10-tetramethyl-3-ethyl-1,5-dioxaspiro5.5!undecane 
52) 8-aza-2,7,7,8,9,9-hexamethyl-1,4-dioxaspiro4.5!decane 
53) 
9-aza-3-hydroxymethyl-3-ethyl-8,8,9,10,10-pentamethyl-1,5-dioxaspiro5.5!u 
ndecane 
54) 
9-aza-3-ethyl-3-acetoxymethyl-9-acetyl-8,8,10,10-tetranethyl-1,5-dioxaspir 
o5.5!-undecane 
55) 
2,2,6,6-tetramethylpiperidine-4-spiro-2'-(1',3'-dioxane)-5'-spiro-5"-(1",3 
"-dioxane)-2"-spiro-4"-(2'",2'",6'",6'"-tetramethylpiperidine). 
(d) Compounds of the formulae VIIA, VIIB and VIIC, compounds of the formula 
VIIA being preferred, 
##STR13## 
in which n is 1 or 2, R and R.sub.11 are as defined under (a), R.sub.16 is 
hydrogen, C.sub.1 -C.sub.12 alkyl, allyl, benzyl, glycidyl or C.sub.2 
-C.sub.6 alkoxyalkyl and R.sub.17, in the case where n is 1, is hydrogen, 
C.sub.1 -C.sub.12 alkyl, C.sub.3 -C.sub.5 alkenyl, C.sub.7 -C.sub.9 
aralkyl, C.sub.5 -C.sub.7 cycloalkyl, C.sub.2 -C.sub.4 hydroxyalkyl, 
C.sub.2 -C.sub.6 alkoxyalkyl, C.sub.6 -C.sub.10 aryl, glycidyl or a group 
of the formula --(CH.sub.2).sub.p --COO--Q or of the formula 
--(CH.sub.2).sub.p --O--CO--Q, in which p is 1 or 2 and Q is C.sub.1 
-C.sub.4 alkyl or phenyl, R.sub.17, in the case where n is 2, is C.sub.2 
-C.sub.12 alkylene, C.sub.4 -C.sub.12 alkenylene, C.sub.6 -C.sub.12 
arylene, a --CH.sub.2 --CH(OH)--CH.sub.2 --O--Y--O--CH.sub.2 
--CH(OH)--CH.sub.2 --group, in which Y is C.sub.2 -C.sub.10 alkylene, 
C.sub.6 -C.sub.15 arylene, C.sub.6 -C.sub.12 cycloalkylene, or a 
--CH.sub.2 CH(OZ')CH.sub.2 --(OCH.sub.2 --CH(OZ')CH.sub.2).sub.2 --group, 
in which Z' is hydrogen, C.sub.1 -C.sub.18 alkyl, allyl, benzyl, C.sub.2 
-C.sub.12 alkanoyl or benzoyl, T.sub.1 and T.sub.2, independently of one 
another, are hydrogen, C.sub.1 -C.sub.18 alkyl or C.sub.6 -C.sub.10 aryl 
or C.sub.7 -C.sub.9 aralkyl, each of which is unsubstituted or substituted 
by halogen or C.sub.1 -C.sub.4 alkyl, or T.sub.1 and T.sub.2 together with 
the C atom linking them form a C.sub.5 -C.sub.14 cycloalkane ring. 
Any C.sub.1 -C.sub.12 alkyl substituents present are, for example, methyl, 
ethyl, n-propyl, n-butyl, sec-butyl, tert-butyl, n-hexyl, n-octyl, 
2-ethylhexyl, n-nonyl, n-decyl, n-undecyl or n-dodecyl. 
Any C.sub.1 -C.sub.18 alkyl substituents present can be, for example, the 
groups listed above and in addition, for example, n-tridecyl, 
n-tetradecyl, n-hexadecyl or n-octadecyl. 
Any C.sub.2 -C.sub.6 alkoxyalkyl substituents present are, for example, 
methoxymethyl, ethoxymethyl, propoxymethyl, tert-butoxymethyl, 
ethoxyethyl, ethoxypropyl, n-butoxyethyl, tert-butoxyethyl, 
isopropoxyethyl or propoxypropyl. 
Examples of R.sub.17 as C.sub.3 -C.sub.5 alkenyl are 1-propenyl, allyl, 
methallyl, 2-butenyl and 2-pentenyl. 
R.sub.17, T.sub.1 and T.sub.2 as C.sub.7 -C.sub.9 aralkyl are in particular 
phenethyl or especially benzyl. A cycloalkane ring formed by T.sub.1 and 
T.sub.2 together with the C atom can be, for example, a cyclopentane, 
cyclohexane, cyclooctane or cyclododecane ring. 
Examples of R.sub.17 as C.sub.2 -C.sub.4 hydroxyalkyl are 2-hydroxyethyl, 
2-hydroxypropyl, 2-hydroxybutyl and 4-hydroxybutyl. 
R.sub.17, T.sub.1 and T.sub.2 as C.sub.6 -C.sub.10 aryl are in particular 
phenyl, or .alpha.- or .beta.-naphthyl, each of which is unsubstituted or 
substituted by halogen or C.sub.1 -C.sub.4 alkyl. 
Examples of R.sub.17 as C.sub.2 -C.sub.12 alkylene are ethylene, propylene, 
2,2-dimethylpropylene, tetramethylene, hexamethylene, octamethylene, 
decamethylene and dodecamethylene. 
R.sub.17 as C.sub.4 -C.sub.12 alkenylene is in particular 2-butenylene, 
2-pentenylene or 3-hexenylene. 
Examples of R.sub.17 as C.sub.6 -C.sub.12 arylene are o-, m- and 
p-phenylene, 1,4-naphthylene and 4,4'-diphenylene. 
Examples of Z' as C.sub.2 -C.sub.12 alkanoyl are propionyl, butyryl, 
octanoyl, dodecanoyl, but preferably acetyl. 
Y as C.sub.2 -C.sub.10 alkylene, C.sub.6 -C.sub.15 arylene or C.sub.6 
-C.sub.12 cycloalkylene is as defined under (b). 
Examples of polyalkylpiperidine compounds of this class are the following 
compounds: 
56) 3-benzyl-1,3,8-triaza-7,7,9,9-tetramethylspiro4.5!decane-2,4-dione 
57) 3-n-octyl-1,3,8-triaza-7,7,9,9-tetramethylspiro4.5!decane-2,4-dione 
58) 3-allyl-1,3,8-triaza-1,7,7,9,9-pentamethylspiro4.5!decane-2,4-dione 
59) 3-glycidyl-1,3,8-triaza-7,7,8,9,9-pentamethylspiro4.5!decane-2,4-dione 
60) 1,3,7,7,8,9,9-heptamethyl-1,3,8-triazaspiro4.5!decane-2,4-dione 
61) 2-isopropyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxospiro-4.5!decane 
62) 2,2-dibutyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxospiro-4.5!decane 
63) 2,2,4,4-tetramethyl-7-oxa-3,20-diaza-21-oxodispiro5.1.11.2!heneicosane 
64) 2-butyl-7,7,9,9-tetramethyl-1-oxa-4,8-diaza-3-oxospiro4.5!decane 
and preferably: 
65) 
8-acetyl-3-dodecyl-1,3,8-triaza-7,7,9,9-tetramethylspiro4.5!decane-2,4-di 
one or the compounds of the following formulae: 
##STR14## 
(e) compounds of the formula VIII, which are themselves preferred, 
##STR15## 
in which n is 1 or 2 and R.sub.18 is a group of the formula 
##STR16## 
in which R and R.sub.11 are as defined under (a), E is --O-- or 
--NR.sub.11 --, 
A is C.sub.2 -C.sub.6 alkylene or --(CH.sub.2).sub.3 --O-- and 
x is 0 or 1, 
R.sub.19 is identical to R.sub.18 or is one of the groups --NR.sub.21 
R.sub.22, --OR.sub.23, --NHCH.sub.2 OR.sub.23 or --N(CH.sub.2 O 
R.sub.23).sub.2, 
R.sub.20, in the case where n is 1, is identical to R.sub.18 or R.sub.19 
and, if n is 2, is a -E-G-E- group, in which G is C.sub.2 -C.sub.6 
alkylene which may be interrupted by --N(R.sub.2)--, 
R.sub.21 is C.sub.1 -C.sub.12 alkyl, cyclohexyl, benzyl or C.sub.1 -C.sub.4 
hydroxyalkyl or a group of the formula 
##STR17## 
R.sub.22 is C.sub.1 -C.sub.12 alkyl, cyclohexyl, benzyl, C.sub.1 -C.sub.4 
hydroxyalkyl, and 
R.sub.23 is hydrogen, C.sub.1 -C.sub.12 alkyl or phenyl, or 
R.sub.21 and R.sub.22 together are C.sub.4 -C.sub.5 alkylene or 
-oxaalkylen, for example 
##STR18## 
or R.sub.21 and R.sub.22 are each a group of the formula 
##STR19## 
Any C.sub.1 -C.sub.12 alkyl substituents present are, for example, methyl, 
ethyl, n-propyl, n-butyl, sec-butyl, tert-butyl, n-hexyl, n-octyl, 
2-ethylhexyl, n-nonyl, n-decyl, n-undecyl or n-dodecyl. 
Any C.sub.1 -C.sub.4 hydroxyalkyl substituents present are, for example, 
2-hydroxyethyl, 2-hydroxypropyl, 3-hydroxypropyl, 2-hydroxybutyl or 
4-hydroxybutyl. 
Examples of A as C.sub.2 -C.sub.6 alkylene are ethylene, propylene, 
2,2-dimethylpropylene, tetramethylene and hexamethylene. 
Examples of R.sub.21 and R.sub.22 together as C.sub.4 -C.sub.5 alkylene or 
-oxaalkylene are tetramethylene, pentamethylene and 3-oxapentamethylene. 
Examples of polyalkylpiperidine compounds of this class are the compounds 
of the following formulae: 
##STR20## 
(f) Oligomeric or polymeric compounds whose recurring structural unit 
contains a 2,2,6,6-tetraalkylpiperidine radical of the formula III, in 
particular polyesters, polyethers, polyamides, polyamines, polyurethanes, 
polyureas, polyaminotriazines, poly(meth)acrylates, poly(meth)acrylamides 
and copolymers thereof containing such radicals. 
Examples of 2,2,6,6-polyalkylpiperidine light stabilizers of this class are 
the compounds of the following formulae, where t is a number from 2 to 
about 200. 
##STR21## 
(g) Compounds of the formula IX 
##STR22## 
in which R and R.sub.11 are as defined under (a). 
Preference is given to compounds of the formula IX in which R is hydrogen 
or methyl and R.sub.11 is hydrogen or methyl. 
Examples of such compounds are: 
95) 2,2,6,6-tetramethyl-4-piperidone (triacetoneamine) 
96) 1,2,2,6,6-pentamethyl-4-piperidone 
97) 2,2,6,6-tetramethyl-4-piperidone 1-oxide 
98) 2,3,6-trimethyl-2,6-diethyl-4-piperidone 
It is particularly expedient to employ in the novel compositions cyclic 
sterically hindered amines containing no ester groups, preferably those 
having at least one triazinyl ring in the molecule. Such amines preferably 
contain at least one group of the formula III and particularly preferably 
belong to one of types (a) to (g) illustrated above. 
The sterically hindered amines can be used in an amount of, for example, 
from 0.001 to 5 parts by weight, preferably from 0.01 to 3 parts by 
weight, particularly preferably from 0.01 to 2 parts by weight, based on 
100 parts by weight of PVC. 
Component (d): 
The term lanthanoid or rare-earth compound is taken to mean, in particular, 
compounds of the elementscerium, praseodymium, neodymium, samarium, 
europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, 
ytterbium, lutetium, lanthanum, scandium and yttrium (scandium and yttrium 
are included amongst the lanthanoids here), preference being given to 
mixtures, in particular with cerium. Further preferred rare-earth 
compounds are given in EP-A-0 108 023. Regarding suitable and preferred 
aluminium compounds, further information is given in U.S. Pat. No. 
4,060,512 and U.S. Pat. No. 3,243,394. 
Compounds of zinc, aluminium or lanthanoids are primarily taken to mean 
metal soaps. 
Metal soaps are principally metal carboxylates, preferably of long-chain 
carboxylic acids. Common examples are stearates and laurates, but also 
oleates and salts of relatively short-chain alkylcarboxylic acids. Metal 
soaps also include alkylbenzoic acids. Metal soaps can be employed 
individually or as mixtures. A review of common metal soaps is given in 
Ullmann's Encyclopedia of Industrial Chemistry, 5th Ed., Vol. A16 (1985), 
pp. 361 ff.). 
Preference is given to organic metal soaps from the series consisting of 
aliphatic saturated C.sub.2 -C.sub.22 carboxylates, aliphatic unsaturated 
C.sub.3 -C.sub.22 carboxylates, aliphatic C.sub.2 -C.sub.22 carboxylates 
which are substituted by at least one OH group, cyclic and bicyclic 
carboxylates having 5-22 carbon atoms, unsubstituted, at least 
mono-OH-substituted and/or C.sub.1 -C.sub.16 alkyl-substituted 
phenylcarboxylates, unsubstituted, at least mono-OH-substituted and/or 
C.sub.1 -C.sub.16 alkyl-substituted naphthylcarboxylates, phenyl-C.sub.1 
-C.sub.16 alkylcarboxylates, naphthyl-C.sub.1 -C.sub.16 alkylcarboxylates 
or unsubstituted or C.sub.1 -C.sub.12 alkyl-substituted phenolates, 
tallates and rosinates. 
Specific mention may be made by way of example of zinc, aluminium, 
scandium, yttrium and lanthanoid salts of monovalent carboxylic acids, 
such as acetic acid, propionic acid, butyric acid, valeric acid, hexanoic 
acid, oenanthic acid, octanoic acid, neodecanoic acid, 2-ethylhexanoic 
acid, pelargonic acid, decanoic acid, undecanoic acid, dodecanoic acid, 
tridecanoic acid, myristic acid, palmitic acid, isostearic acid, stearic 
acid, 12-hydroxystearic acid, behenic acid, benzoic acid, 
p-tert-butylbenzoic acid, dimethylhydroxybenzoic acid, 
3,5-di-tert-butyl-4-hydroxybenzoic acid, tolic acid, dimethylbenzoic acid, 
ethylbenzoic acid, n-propylbenzoic acid, salicylic acid, 
p-tert-octylsalicylic acid and sorbic acid; zinc, aluminium and lanthanoid 
salts of monoesters of divalent carboxylic acids, such as oxalic acid, 
malonic acid, succinic acid, glutaric acid, adipic acid, fumaric acid, 
pentane-1,5-dicarboxylic acid, hexane-1,6-dicarboxylic acid, 
heptane-1,7-dicarboxylic acid, octane-1,8-dicarboxylic acid, phthalic 
acid, isophthalic acid, terephthalic acid and hydroxyphthalic acid; and 
di- or triesters of tri- or tetravalent carboxylic acids, such as 
hemimellitic acid, trimellitic acid, pyromellitic acid and citric acid. 
Preference is given to zinc, aluminium and lanthanoid carboxylates of 
carboxylic acids having 7 to 18 carbon atoms (metal soaps in the stricter 
sense), for example benzoates or alkanoates, preferably stearates, 
oleates, laurates, palmitates, behenates, hydroxystearates, 
dihydroxystearates or 2-ethylhexanoates. Particular preference is given to 
stearates, oleates and p-tert-butylbenzoates. Superbasic carboxylates, 
such as superbasic zinc octanoate, are also preferred. 
It is also possible to use a mixture of carboxylates having different 
structures. 
It is also possible to employ a mixture of zinc compounds, aluminium 
compounds and/or lanthanoid compounds having different structures. Organic 
zinc, aluminium or lanthanoid compounds can also be coated onto an alumo 
salt compound; cf. also DE-A-4 031 818. 
The metal soaps or mixtures thereof can be used in an amount of, for 
example, from 0.001 to 10 parts by weight, preferably from 0.01 to 8 parts 
by weight, particularly preferably from 0.05 to 5 parts by weight, based 
on 100 parts by weight of PVC. The same applies to the other metal 
stabilizers described below. 
Further additives for stabilization of the PVC mixtures may be expedient. 
These are, for example, plasticizers, metal soaps, further metal 
stabilizers (in particular organotin stabilizers), fillers and reinforcing 
materials (for example calcium carbonate, silicates, glass fibres, talc, 
kaolin, chalk, mica, metal oxides and hydroxides, carbon black or 
graphite), polyols, organic phosphites, antioxidants, 1,3-diketo 
compounds, further, metal-free stabilizers such as .beta.-naphthol, 
.beta.-aminocrotonates (for example as mentioned in EP 0 465 405, p. 6, 
lines 9-14), phenylindoles, pyrroles, as described, for example, in 
EP-A-465 405, and hydroxydiphenylamines!, light stabilizers, UV absorbers, 
lubricants, fatty acid esters, paraffins, blowing agents, optical 
brighteners, pigments, flameproofing agents, antistatics, phosphates, 
thiophosphates, gelling aids, peroxide scavengers, modifiers, 
perchlorates, epoxides and further complexing agents for Lewis acids. 
Epoxide compounds 
The epoxide compounds (c) which can be used for the purposes of the 
invention can have an aliphatic, aromatic, cycloaliphatic, araliphatic or 
heterocyclic structure; they contain epoxide groups as side groups. The 
epoxide groups are preferably bonded to the remainder of the molecule as 
glycidyl groups via ether or ester bonds, or they are N-glycidyl 
derivatives of heterocyclic amines, amides or imides. Epoxide compounds of 
these types are known in general terms and are commercially available. 
The epoxide compounds contain at least one epoxide radical of the formula I 
##STR23## 
where R.sub.1 and R.sub.3 are both hydrogen, R.sub.2 is hydrogen or 
methyl, and n is 0, or in which R.sub.1 and R.sub.3 together are 
--CH.sub.2 --CH.sub.2 -- or --CH.sub.2 --CH.sub.2 --CH.sub.2 --, R.sub.2 
is then hydrogen, and n is 0 or 1 and this epoxide radical is bonded 
directly to carbon, oxygen, nitrogen or sulfur atoms. 
Examples which may be mentioned of epoxide compounds are: 
I) Glycidyl and .beta.-methylglycidyl esters obtainable by reacting a 
compound containing at least one carboxyl group in the molecule and 
epichlorohydrin or glycerol dichlorohydrin or 
.beta.-methylepichlorohydrin. The reaction is preferably carried out in 
the presence of bases. 
The compounds containing at least one carboxyl group in the molecule can be 
aliphatic carboxylic acids. Examples of these carboxylic acids are 
glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, 
sebacic acid or dimerized or trimerized linoleic acid, acrylic acid, 
methacrylic acid, caproic acid, caprylic acid, lauric acid, myristic acid, 
palmitic acid, stearic acid and pelargonic acid, and the acids mentioned 
in the case of the organic zinc compounds. 
However, it is also possible to employ cycloaliphatic carboxylic acids, for 
example cyclohexanecarboxylic acid, tetrahydrophthalic acid, 
4-methyltetrahydrophthalic acid, hexahydrophthalic acid or 
4-methylhexahydrophthalic acid. 
It is also possible to use aromatic carboxylic acids, for example benzoic 
acid, phthalic acid, isophthalic acid, trimellitic acid or pyromellitic 
acid. 
It is likewise possible to use carboxyl-terminated adducts, for example of 
trimellitic acid and polyols, for example glycerol or 
2,2-bis(4-hydroxycyclohexyl)propane. 
Other epoxide compounds which can be used for the purposes of the present 
invention are given in EP 0 506 617. 
II) Glycidyl or .beta.-methylglycidyl ethers obtainable by reacting a 
compound containing at least one free alcoholic hydroxyl group and/or 
phenolic hydroxyl group and a suitably substituted epichlorohydrin under 
alkaline conditions, or in the presence of an acid catalyst followed by 
alkali treatment. 
Ethers of this type are derived, for example, from acyclic alcohols, such 
as ethylene glycol, diethylene glycol and higher poly(oxyethylene) 
glycols, propane-1,2-diol or poly(oxypropylene) glycols, propane-1,3-diol, 
butane-1,4-diol, poly(oxytetramethylene) glycols, pentane-1,5-diol, 
hexane-1,6-diol, hexane-2,4,6-triol, glycerol, 1,1,1-trimethylolpropane, 
bistrimethylolpropane, pentaerythritol, sorbitol, and from 
polyepichlorohydrins, butanol, amyl alcohol, pentanol and from 
monofunctional alcohols such as isooctanol, 2-ethylhexanol, isodecanol and 
C.sub.7 -C.sub.9 alkanol and C.sub.9 -C.sub.11 alkanol mixtures. 
However, they are also derived, for example, from cycloaliphatic alcohols, 
such as 1,3- or 1,4-dihydroxycyclohexane, bis(4-hydroxycyclohexyl)methane, 
2,2-bis(4-hydroxycyclohexyl)propane or 
1,1-bis(hydroxymethyl)cyclohex-3-ene, or they contain aromatic rings, such 
as N,N-bis(2-hydroxyethyl)aniline or 
p,p'-bis(2-hydroxyethylamino)diphenylmethane. 
The epoxide compounds can also be derived from monocyclic phenols, for 
example from phenol, resorcinol or hydroquinone; or they are based on 
polycyclic phenols, for example on bis(4-hydroxyphenyl)methane, 
2,2-bis(4-hydroxyphenyl)propane, 
2,2-bis(3,5-dibromo-4-hydroxyphenyl)propane, 4,4'-dihydroxydiphenyl 
sulfone or on condensation products of phenols with formaldehyde obtained 
under acid conditions, such as phenol novolaks. 
Examples of other possible epoxides are: glycidyl 1-naphthyl ether, 
glycidyl 2-phenylphenyl ether, 2-biphenyl glycidyl ether, 
N-(2,3-epoxypropyl)phthalimide and 2,3-epoxypropyl 4-methoxyphenyl ether. 
III) N-Glycidyl compounds obtainable by dehydrochlorinating the products of 
the reaction of epichlorohydrin with amines, which contain at least one 
amino hydrogen atom. These amines are, for example, aniline, 
N-methylaniline, toluidine, n-butylamine, bis(4-aminophenyl)methane, 
m-xylylenediamine or bis(4-methylaminophenyl)methane, but also 
N,N,O-triglycidyl-m-aminophenol or N,N,O-triglycidyl-p-aminophenol. 
However, the N-glycidyl compounds also include N,N'-di-, N,N',N"-tri- and 
N,N',N",N"'-tetraglycidyl derivatives of cycloalkyleneureas, such as 
ethyleneurea or 1,3-propyleneurea, and N,N'-diglycidyl derivatives of 
hydantoins, such as of 5,5-dimethylhydantoin or glycol uril and 
triglycidyl isocyanurate. 
IV) S-Glycidyl compounds, for example di-S-glycidyl derivatives derived 
from dithiols, for example ethane-1,2-dithiol or 
bis(4-mercaptomethylphenyl) ether. 
V) Epoxide compounds containing a radical of the formula I in which R.sub.1 
and R.sub.3 together are --CH.sub.2 --CH.sub.2 --, and n is 0, are 
bis(2,3-epoxycyclopentyl) ether, 2,3-epoxycyclopentyl glycidyl ether or 
1,2-bis(2,3-epoxycyclopentoxy)ethane. An example of an epoxy resin 
containing a radical of the formula I in which R.sub.1 and R.sub.3 
together are --CH.sub.2 --CH.sub.2 -- and n is 1 is 
3'4'-epoxy-6'-methylcyclohexyl)methyl 
3,4-epoxy-6-methylcyclohexanecarboxylate. 
Examples of suitable terminal epoxides are: 
a) liquid bisphenol A diglycidyl ethers, such as ARALDIT.RTM.GY 240, 
ARALDIT.RTM.GY 250, ARALDIT.RTM.GY 260, ARALDIT.RTM.GY 266, ARALDIT.RTM.GY 
2600, ARALDIT.RTM.MY 790; 
b) solid bisphenol A diglycidyl ethers, such as ARALDIT.RTM.GT 6071, 
ARALDIT.RTM.GT 7071, ARALDIT.RTM.GT 7072, ARALDIT.RTM.GT 6063, 
ARALDIT.RTM.GT 7203, ARALDIT.RTM.GT 6064, ARALDIT.RTM.GT 7304, 
ARALDIT.RTM.GT 7004, ARALDIT.RTM.GT 6084, ARALDIT.RTM.GT 1999, 
ARALDIT.RTM.GT 7077, ARALDIT.RTM.GT 6097, ARALDIT.RTM.GT 7097, 
ARALDIT.RTM.GT 7008, ARALDIT.RTM.GT 6099, ARALDIT.RTM.GT 6608, 
ARALDIT.RTM.GT 6609, ARALDIT.RTM.GT 6610; 
c) liquid bisphenol F diglycidyl ethers, such as ARALDIT.RTM.GY 281, 
ARALDIT.RTM.PY 302, ARALDIT.RTM.PY 306; 
d) solid polyglycidyl ethers of tetraphenylethane, such as CG Epoxy 
Resin.RTM.0163; 
e) solid and liquid polyglycidyl ethers of phenol-formaldehyde novolak, 
such as EPN 1138, EPN 1139, GY 1180, PY 307; 
f) solid and liquid polyglycidyl ethers of o-cresol-formaldehyde novolak, 
such as ECN 1235, ECN 1273, ECN 1280, ECN 1299; 
g) liquid glycidyl ethers of alcohols, such as Shell.RTM. glycidyl ether 
162, ARALDIT.RTM.DY 0390, ARALDIT.RTM.DY 0391; 
h) liquid glycidyl ethers of carboxylic acids, such as 
Shell.RTM.CARDURA.RTM.E terephthalates, trimellitates, ARALDIT.RTM.PY 284; 
i) solid heterocyclic epoxy resins (triglycidyl isocyanurates), such as 
ARALDIT.RTM.PT 810; 
j) liquid cycloaliphatic epoxy resins, such as ARALDIT.RTM.CY 179; 
k) liquid N,N,O-triglycidyl ether of p-aminophenol, such as ARALDIT.RTM.MY 
0510; 
l) tetraglycidyl-4,4'-methylenebenzamine or 
N,N,N',N'-tetraglycidyldiaminophenylmethane, such as ARALDIT.RTM.MY 720, 
ARALDIT.RTM.MY 721, ARADLITE.RTM. epoxy resins are available from Ciba. 
Preference is given to epoxide compounds containing two functional groups. 
However, it is in principle possible for epoxide compounds containing one, 
three or more functional groups to be used. 
Predominantly employed are epoxide compounds, in particular diglycidyl 
compounds, having aromatic groups. 
If desired, a mixture of different epoxide compounds can also be employed. 
Particularly preferred epoxide compounds are diglycidyl ethers based on 
bisphenols, for example on 2,2-bis(4-hydroxyphenyl)propane (bisphenol A), 
bis(4-hydroxyphenyl)methane or mixtures of 
bis(ortho/para-hydroxyphenyl)methane (bisphenol F). 
The epoxide compounds can be employed in an amount of preferably at least 
0.1 part by weight, for example from 0.1 to 50 parts by weight, preferably 
from 1 to 30 parts by weight, in particular from 1 to 25 parts by weight, 
based on 100 parts by weight of PVC. 
Antioxidants: 
Preferred antioxidants contain phenolic groups and in particular conform to 
the formula III 
##STR24## 
in which A is hydrogen, C.sub.1 -C.sub.24 alcyl, C.sub.5 -C.sub.12 
cycloalkyl, phenyl-C.sub.1 -C.sub.4 alkyl, phenyl or --CH.sub.2 
--S--R'.sub.1 or 
##STR25## 
D is C.sub.1 -C.sub.24 alkyl, C.sub.5 -C.sub.12 cycloalkyl, 
phenyl-C.sub.1 -C.sub.4 alkyl, phenyl or --CH.sub.2 --S--R'.sub.1, 
X is hydrogen, C.sub.1 -C.sub.18 alkyl, --C.sub.a H.sub.2a --S.sub.q 
--R'.sub.2, --C.sub.b H.sub.2b --CO--OR'.sub.3, --C.sub.b H.sub.2b 
--CO--N(R'.sub.5)(R'.sub.6), --CH.sub.2 N(R'.sub.10)(R'.sub.11), 
##STR26## 
R' is hydrogen or --CO--CH.dbd.CH.sub.2, G* is hydrogen or C.sub.1 
-C.sub.12 alkyl, 
R'.sub.1 is C.sub.1 -C.sub.18 alkyl, phenyl, --(CH.sub.2).sub.c 
--CO--OR'.sub.4 or --CH.sub.2 CH.sub.2 OR'.sub.9, 
R'.sub.2 is hydrogen, C.sub.1 -C.sub.18 alkyl, phenyl, benzyl, 
##STR27## 
--(CH.sub.2).sub.c --CO--OR'.sub.4 or --CH.sub.2 --CH.sub.2 --OR'.sub.9, 
R'.sub.3 is C.sub.1 -C.sub.30 alkyl, --CHR'.sub.7 --CH.sub.2 
--S--R'.sub.8, 
##STR28## 
in which Q is C.sub.2 -C.sub.8 alkylene, C.sub.4 -C.sub.6 thiaalkylene or 
--CH.sub.2 CH.sub.2 (OCH.sub.2 CH.sub.2).sub.d --, 
R'.sub.4 is C.sub.1 -C.sub.24 alkyl, 
R'.sub.5 is hydrogen, C.sub.1 -C.sub.18 alkyl or cyclohexyl, 
R'.sub.6 is C.sub.1 -C.sub.18 alkyl, cyclohexyl, phenyl, C.sub.1 -C.sub.18 
alkyl-substituted phenyl, 
##STR29## 
or R'.sub.5 and R'.sub.6 together are C.sub.4 -C.sub.8 alkylene, which 
may be interrupted by --O-- or --NH--, 
R'.sub.7 is hydrogen, C.sub.1 -C.sub.4 alkyl or phenyl, 
R'.sub.8 is C.sub.1 -C.sub.18 alkyl, 
R'.sub.9 is hydrogen, C.sub.1 -C.sub.24 alkyl, phenyl, C.sub.2 -C.sub.18 
alkanoyl or benzoyl, 
R'.sub.10 is C.sub.1 -C.sub.18 alkyl, cyclohexyl, phenyl, C.sub.1 -C.sub.18 
alkyl-substituted phenyl or 
##STR30## 
R'.sub.11 is hydrogen, C.sub.1 -C.sub.18 alkyl, cyclohexyl or 
##STR31## 
R'.sub.10 and R'.sub.11 together are C.sub.4 -C.sub.8 alkylene, which may 
be interrupted by --O-- or --NH--, a is 0, 1, 2 or 3, b is 0, 1, 2 or 3, c 
is 1 or 2, d is 1 to5, f is 2to 8 and q is 1, 2, 3 or 4. 
Preference is given to a phenolic compound of the formula III in which 
A is hydrogen, C.sub.1 -C.sub.8 alkyl, cyclohexyl, phenyl, --CH.sub.2 
--S--C.sub.1 --C.sub.18 alkyl or 
##STR32## 
D is C.sub.1 -C.sub.8 alkyl, cyclohexyl, phenyl or --CH.sub.2 --S--C.sub.1 
-C.sub.18 alkyl, 
X is hydrogen, C.sub.1 -C.sub.8 alkyl, --C.sub.a H.sub.2a --S.sub.q 
--R'.sub.2, --C.sub.b H.sub.2b --CO--OR'.sub.3, --CH.sub.2 
N(R'.sub.10)(R'.sub.11), 
##STR33## 
R'.sub.2 is C.sub.1 -C.sub.12 alkyl, phenyl or --(CH.sub.2).sub.c 
--CO--OR'.sub.4, 
R'.sub.3 is C.sub.1 -C.sub.18 alkyl or 
##STR34## 
in which Q is C.sub.2 -C.sub.8 alkylene, --CH.sub.2 --CH.sub.2 
--S--CH.sub.2 CH.sub.2 -- or --CH.sub.2 CH.sub.2 (OCH.sub.2 
CH.sub.2).sub.d --, 
R'.sub.4 is C.sub.1 -C.sub.18 alkyl, 
R'.sub.10 and R'.sub.11, independently of one another, are hydrogen or 
C.sub.1 -C.sub.12 alkyl or 
R'.sub.10 and R'.sub.11 together are C.sub.4 -C.sub.8 alkylene, which may 
be interrupted by --O-- or --NH--, a is 1 or 2, b is 1 or 2, c is 1 or 2 
and d is 1, 2 or 3. 
Particular preference is furthermore given to antioxidants containing at 
least one group of the formula 
##STR35## 
in which A is hydrogen, methyl or tert-butyl, and D is unsubstituted or 
substituted alkyl or unsubstituted or substituted alkylthioalkyl. 
Examples of preferred antioxidants are: 
1. Alkylated monophenols, for example 2,6-di-tert-butyl-4-methylphenol, 
2-butyl-4,6-dimethylphenol, 2,6-di-tert-butyl-4-ethylphenol, 
2,6-di-tert-butyl-4-n-butlyphenol, 2,6-di-tert-butyl-4-isobutylphenol, 
2,6-dicyclopentyl-4-methylphenol, 
2-(.alpha.-methylcyclohexyl)-4,6-dimethylphenol, 
2,6-dioctadecyl-4-methylphenol, 2,4,6-tricyclohexylphenol, 
2,6-di-tert-butyl-4-methoxymethylphenol, 2,6-dinonyl-4-methylphenol, 
2,4-dimethyl-6-(1'-methylundec-1'-yl)phenol, 
2,4-dimethyl-6-(1'-methylheptadec-1'-yl)phenol, 
2,4-dimethyl-6-(1'-methyltridec-1'-yl)phenol, octyiphenol, nonylphenol and 
mixtures thereof. 
2. Alkylthiomethylphenols, for example 
2,4-dioctylthiomethyl-6-tert-butylphenol, 
2,4-dioctylthiomethyl-6-methylphenol, 2,4-dioctylthiomethyl-6-ethylphenol, 
2,6-didodecylthiomethyl-4-nonylphenol. 
3. Hydroquinones and alkylated hydroquinones, for example 
2,6-di-tert-butyl-4-methoxyphenol, 2,5-di-tert-butyl-hydroquinone, 
2,5-di-tert-amyl-hydroquinone, 2,6-diphenyl-4-octadecyloxyphenol, 
2,6-di-tert-butyl-hydroquinone, 2,5-di-tert-butyl-4-hydroxyanisole, 
3,5-di-tert-butyl-4-hydroxyanisole, 3,5-di-tert-butyl-4-hydroxyphenyl 
stearate, bis(3,5-di-tert-butyl-4-hydroxyphenyl) adipate. 
4. Hydroxylated diphenyl thioethers, for example 
2,2'-thiobis(6-tert-butyl-4-methylphenol), 2,2'-thiobis(4-octylphenol), 
4,4'-thiobis(6-tert-butyl-3-methylphenol), 
4,4'-thiobis(6-tert-butyl-2-methylphenol), 
4,4'-thiobis(3,6-di-sec-amylphenol), 
4,4'-bis(2,6-dimethyl-4-hydroxyphenyl) disulfide. 
5. Alkylidenebisphenols, for example 
2,2'-methylene-bis(6-tert-butyl-4-methylphenol), 
2,2'-methylene-bis(6-tert-butyl-4-ethylphenol), 
2,2'-methylene-bis4-methyl-6-(.alpha.-methylcyclohexyl)phenol!, 
2,2'-methylene-bis(4-methyl-6-cyclohexylphenol), 
2,2'-methylene-bis(6-nonyl-4-methylphenol), 
2,2'-methylene-bis(4,6-di-tert-butylphenol), 
2,2'-ethylidene-bis(4,6-di-tert-butylphenol), 2,2 
'-ethyidene-bis(6-tert-butyl-4-isobutylphenol), 
2,2'-methylene-bis6-(.alpha.-methylbenzyl)-4-nonylphenol!, 
2,2'-methylene-bis6-(.alpha.,.alpha.-dimethylbenzyl)-4-nonylphenol!, 
4,4'-methylene-bis(2,6-di-tert-butylphenol), 
4,4'-methylene-bis(6-tert-butly-2-methylphenol), 
1,1-bis(5-tert-butyl-4-hydroxy-2-methylphenyl)butane, 
2,6-bis(3-tert-butyl-5-methyl-2-hydroxybenzyl)-4-methylphenol, 
1,1,3-tris(5-tert-butyl-4-hydroxy-2-methylphenyl)butane, 
1,1-bis(5-tert-butyl-4-hydroxy-2-methylphenyl)-3-n-dodecylmercaptobutane, 
ethylene glycol bis3,3-bis(3'-tert-butyl-4'-hydroxyphenyl) butyrate!, 
bis(3-tert-butyl-4-hydroxy-5-methylphenyl)dicyclopentadiene, 
bis2-(3'-tert-butyl-2'-hydroxy-5'-methylbenzyl)-6-tert-butyl-4-methyl-phe 
nyl!terephthalate, 1,1-bis(3,5-dimethyl-2-hydroxyphenyl)butane, 
2,2-bis(3,5-di-tert-butyl-4-hydroxyphenyl)propane, 
2,2-bis(4-hydroxyphenyl)propane, 
2,2-bis(5-tert-butyl-4-hydroxy-2-methylphenyl)-4-n-dodecylmercaptobutane, 
1,1,5,5-tetra(5-tert-butyl-4-hydroxy-2-methylphenyl)pentane. 
6. O-, N-and S-benzyl compounds, for example 
3,5,3',5'-tetra-tert-butyl-4,4'-dihydroxydibenzyl ether, octadecyl 
4-hydroxy-3,5-dimethylbenzylmercaptoacetate, 
tris(3,5-di-tert-butyl-4-hydroxybenzyl)amine, 
bis(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) dithioterephthalate, 
bis(3,5-di-tert-butyl-4-hydroxybenzyl) sulfide, isooctyl 
3,5-di-tert-butyl-4-hydroxybenzylmercaptoacetate. 
7. Hydroxybenzylated malonates, for example dioctadecyl 
2,2-bis(3,5-di-tert-butyl-2-hydroxybenzyl)malonate, dioctadecyl 
2-(3-tert-butyl-4-hydroxy-5-methylbenzyl)malonate, didodecylmercaptoethyl 
2,2-bis(3,5-di-tert-butyl-4-hydroxybenzyl)malonate, 
di4-(1,1,3,3-tetramethylbutyl)phenyl!2,2-bis(3,5-di-tert-butyl-4-hydroxyb 
enzyl)-malonate. 
8. Hydroxybenzyl aromatic compounds, for example 
1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene, 
1,4-bis(3,5-di-tert-butyl-4-hydroxybenzyl)-2,3,5,6-tetramethylbenzene, 
2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)phenol. 
9. Triazine compounds, for example 
2,4-bisoctylmercapto-6-(3,5-di-tert-butyl-4-hydroxyanilino)-1,3,5-triazine 
, 2-octylmercapto-4,6-bis(3,5-di-tert-butyl-4-hydroxyanilino)-1,3,5-triazin 
e, 
2-octylmercapto-4,6-bis(3,5-di-tert-butyl-4-hydroxyphenoxy)-1,3,5-triazine 
, 2,4,6-tris(3,5-di-tert-butyl-4-hydroxyphenoxy)-1,2,3-triazine, 
1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate, 
1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) isocyanurate, 
2,4,6-tris(3,5-di-tert-butyl-4-hydroxyphenylethyl)-1,3,5-triazine, 
1,3,5-tris(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)hexahydro-1,3,5-tria 
zine, 1,3,5-tris(3,5-dicyclohexyl-4-hydroxybenzyl) isocyanurate. 
10. Phosphonates, phosphites and phosphonites, for example dimethyl 
2,5-di-tert-butyl-4-hydroxybenzylphosphonate, diethyl 
3,5-di-tert-butyl-4-hydroxybenzylphosphonate, dioctadecyl 
3,5-di-tert-butyl-4-hydroxybenzylphosphonate, dioctadecyl 
5-tert-butyl-4-hydroxy-3-methylbenzylphosphonate, the calcium salt of 
monoethyl 3,5-di-tert-butyl-4-hydroxybenzyl phosphonate, triphenyl 
phosphite, diphenyl alkyl phosphites, phenyl dialkyl phosphites, 
tris(nonylphenyl) phosphite, trilauryl phosphite, trioctadecyl phosphite, 
distearyl pentaerythrityl diphosphite, tris(2,4-di-tert-butylphenyl) 
phosphite, diisodecyl pentaerythrityl diphosphite, 
bis(2,4-di-tert-butylphenyl) pentaerythrityl diphosphite, 
bis(2,6-di-tert-butyl-4-methylphenyl) pentaerythrityl diphosphite, 
bisisodecyloxy pentaerythrityl diphosphite, 
bis(2,4-di-tert-butyl-6-methylphenyl) pentaerythrityl diphosphite, 
bis(2,4,6-tri-tert-butylphenyl) pentaerythrityl diphosphite, tristearyl 
sorbitol triphosphite, tetrakis(2,4-di-tert-butylphenyl)-4,4'-biphenylene 
diphosphonite, 
6-isooctyloxy-2,4,8,10-tetra-tert-butyl-12H-dibenzd,g!-1,3,2-dioxaphospho 
cine, 
6-fluoro-2,4,8,10-tetra-tert-butyl-12-methyldibenzd,g!-1,3,2-dioxaphospho 
cine, bis(2,4-di-tert-butyl-6-methylphenyl) methyl phosphite, 
bis(2,4-di-tert-butyl-6-methylphenyl) ethyl phosphite (C.sub.9 H.sub.19 
--C.sub.6 H.sub.4 --).sub.1.5 --P--(O--C.sub.12-13 H.sub.25-27).sub.1.5. 
11. Acylaminophenols, for example 4-hydroxylauranilide, 
4-hydroxystearanilide, octyl 
N-(3,5-di-tert-butyl-4-hydroxyphenyl)carbamate. 
12. Esters of .beta.-(3,5-di-tert-butyl-4-hydroxyphenyl)propionc acid with 
monohydric or polyhydric alcohols, for example with methanol, ethanol, 
octanol, octadecanol, 1,6-hexanediol, 1,9-nonanediol, ethylene glycol, 
1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene 
glycol, triethylene glycol, pentaerythritol, dipentaerythritol, 
tris(hydroxyethyl) isocyanurate, N,N'-bis(hydroxyethyl)oxalamide, 
3-thiaundecanol, 3-thiapentadecanol, trimethyihexanediol, 
trimethylolpropane, ditrimethylolpropane, 
4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo-2.2.2!-octane. 
13. Esters of .beta.-(5-tert-butyl-4-hydroxy-3-methylphenyl)propionic acid 
with monohydric or polyhydric alcohols, for example with methanol, 
ethanol, octanol, octadecanol, 1,6-hexanediol, 1,9-nonanediol, ethylene 
glycol, 1,2-propanediol, neopentyl glycol, thiodiethylene glycol, 
diethylene glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl) 
isocyanurate, N,N'-bis(hydroxyethyl)oxalamide, 3-thiaundecanol, 
3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 
4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo-2.2.2!-octane. 
14. Esters of .beta.-(3,5-dicyclohexyl-4-hydroxyphenyl)propionic acid with 
monohydric or polyhydric alcohols, for example with methanol, ethanol, 
octanol, octadecanol, 1,6-hexanediol, 1,9-nonanediol, ethylene glycol, 
1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene 
glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl) 
isocyanurate, N,N'-bis(hydroxyethyl)oxalamide, 3-thiaundecanol, 
3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 
4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo-2.2.2!-octane. 
15. Esters of 3,5-di-tert-butyl-4-hydroxyphenylacetic acid with monohydric 
or polyhydric alcohols, for example with methanol, ethanol, octanol, 
octadecanol, 1,6-hexanediol, 1,9-nonanediol, ethylene glycol, 
1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene 
glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl) 
isocyanurate, N,N'-bis(hydroxyethyl)oxalamide, 3-thiaundecanol, 
3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 
4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo-2.2.2!-octane. 
16. Amides of .beta.-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid, for 
example 
N,N'-bis(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)hexamethylenediamine, 
N,N'-bis(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)trimethylenediamine, 
N,N'-bis(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)hydrazine. 
Of these, particular preference is given to antioxidants from groups 1-5, 
10 and 12, in particular 2,2-bis(4-hydroxyphenyl)propane and the esters of 
3,5-di-tert-butyl-4-hydroxyphenylpropionic acid with octadecanol or 
pentaerythritol, or tris(2,4-di-tert-butylphenyl) phosphite. 
If desired, a mixture of different antioxidants can also be employed. 
The antioxidants can be used in an amount of, for example, 0.01 to 10 parts 
by weight, preferably from 0.1 to 10 parts by weight, in particular from 
0.1 to 5 parts by weight, based on 100 parts by weight of PVC. 
Fillers 
The fillers used are, for example, chalk, kaolin, china clay, talc, 
silicates, glass fibres, glass beads, sawdust, mica, metal oxides, metal 
hydroxides, carbon black, graphite, rock flour and barytes. Preference is 
given to chalk and talc. 
The fillers can be employed in an amount of, preferably, at least 1 part by 
weight, for example from 5 to 200 parts by weight, preferably from 10 to 
150 parts by weight, in particular from 15 to 100 parts by weight, based 
on 100 parts by weight of PVC. 
Examples of suitable plasticizers are those from the following groups: 
A) Phthalates (esters of phthalic acid) 
Examples of these plasticizers are dimethyl, diethyl, dibutyl, dihexyl, 
di-2-ethylhexyl, di-n-octyl, di-isooctyl, di-isononyl, di-isodecyl, 
di-isotridecyl, dicyclohexyl, dimethylcyclohexyl, dimethyl glycol, dibutyl 
glycol, benzyl butyl and diphenyl phthalates, and mixtures of phthalates, 
such as C.sub.7 -C.sub.9 - and C.sub.9 -C.sub.11 alkyl phthalates made 
from predominantly linear alcohols, C.sub.6 -C.sub.10 -n-alkyl phthalates 
and C.sub.8 -C.sub.10 -n-alkyl phthalates. 
Preference is given to dibutyl, dihexyl, di-2-ethylhexyl, di-n-octyl, 
di-isooctyl, di-isononyl, di-isodecyl, di-isotridecyl and benzyl butyl 
phthalates, and said mixtures of alkyl phthalates. Particular preference 
is given to di-2-ethylhexyl, di-isononyl and di-isodecyl phthalate. 
B) Esters of aliphatic dicarboxylic acids, in particular esters of adipic, 
azelaic and sebacic acids 
Examples of these plasticizers are di-2-ethylhexyl adipate, di-isooctyl 
adipate (mixture), di-isononyl adipate (mixture), di-isodecyl adipate 
(mixture), benzyl butyl adipate, benzyl octyl adipate, di-2-ethylhexyl 
azelate, di-2-ethylhexyl sebacate and di-isodecyl sebacate (mixture). 
Preference is given to di-2-ethylhexyl adipate and di-isooctyl adipate. 
C) Esters of trimellitic acid, for example tri-2-ethylhexyl trimellitate, 
tri-isodecyl trimellitate (mixture), tri-isotridecyl trimellitate, 
tri-isooctyl trimellitate (mixture) and tri-C.sub.6 -C.sub.8 alkyl, 
tri-C.sub.6 -C.sub.10 alkyl, tri-C.sub.7 -C.sub.9 alkyl and tri-C.sub.9 
-C.sub.11 alkyl trimellitates. The last-mentioned trimellitates are formed 
by esterifying trimellitic acid by means of the appropriate alkanol 
mixtures. Preferred trimellitates are tri-2-ethylhexyl trimellitate and 
said trimellitates made from alkanol mixtures. 
D) Epoxide plasticizers 
These are principally epoxidized unsaturated fatty acids, for example 
epoxidized soybean oil. 
E) Polymer plasticizers 
A definition of these plasticizers and examples thereof are given in the 
handbook "Plastics Additives", edited by R. Gachter and H. Muller, Hanser 
Verlag, 1985, page 393, chapter 5.9.6, and in "PVC Technology", edited by 
W. V. Titow, 4th Ed., Elsevier Publ., 1984, pages 165-170. The most usual 
starting materials for the preparation of polyester plasticizers are: 
dicarboxylic acids, such as adipic, phthalic, azelaic and sebacic acids; 
diols, such as 1,2-propanediol, 1,3-butanediol, 1,4-butanediol, 
1,6-hexanediol, neopentyl glycol and diethylene glycol; monocarboxylic 
acids, such as acetic, caproic, caprylic, lauric, myristic, palmitic, 
stearic, pelargonic and benzoic acids; monofunctional alcohols, such as 
isooctanol, 2-ethylhexanol, isodecanol and C.sub.7 -C.sub.9 alkanol and 
C.sub.9 -C.sub.11 alkanol mixtures. Particularly advantageous are 
polyester plasticizers made from said dicarboxylic acids and 
monofunctional alcohols. 
F) Esters of phosphoric acid 
A definition of these esters is given in the above-mentioned "Plastics 
Additives Handbook" on page 271, chapter 5.7.2. Examples of these 
phosphates are tributyl phosphate, tri-2-ethylbutyl phosphate, 
tri-2-ethylhexyl phosphate, trichloroethyl phosphate, 2-ethylhexyl 
diphenyl phosphate, cresyl diphenyl phosphate, triphenyl phosphate, 
tricresyl phosphate and trixylenyl phosphate. Preference is given to 
tri-2-ethylhexyl phosphate and .RTM.Reofos 50 and 95. 
G) Chlorinated hydrocarbons (paraffins) 
H) Hydrocarbons 
I) Monoesters, for example butyl oleate, phenoxyethyl oleate, 
tetrahydrofurfuryl oleate and esters of alkylsulfonic acids. 
J) Glycol esters, for example diglycol benzoates. 
Definitions and examples of plasticizers from groups G) to J) are given in 
the following handbooks: 
"Plastics Additives", edited by R. Gachter and H. Muller, Hanser 
Publishers, 1985, chapter 5.9.14.2 (Group G)) and chapter 5.9.14.1 (Group 
H)). 
"PVC Technology", edited by W. V. Titow, 4th Ed., Elsevier Publishers, 
1984, pages 171-173, chapter 6.10.2 (Group G)), page 174, chapter 6.10.5 
(group H)), page 173, chapter 6.10.3 (group I)) and pages 173-174, chapter 
6.10.4 (group J)). 
Particular preference is given to plasticizers from groups A) to G), in 
particular A) to F), especially the plasticizers in these groups which 
have been mentioned as preferred. 
In general, from 5 to 120 parts, in particular from 10 to 100 parts, of the 
plasticizers from groups A), B), C) and E), from 0.5 to 30 parts, in 
particular from 0.5 to 20 parts, of those from group D) and from 1 to 100 
parts, in particular from 2 to 80 parts, of those from groups F) and G) 
are present. 
It is also possible to use mixtures of different plasticizers. 
The plasticizers can be used in an amount of, for example, from 5 to 120 
parts by weight, preferably from 10 to 100 parts by weight, in particular 
from 20 to 70 parts by weight, based on 100 parts by weight of PVC. 
Other metal stabilizers 
Specific mention may be made of organotin stabilizers. These are, in 
particular, carboxylates, mercaptides and sulfides. Suitable compounds are 
described in U.S. Pat. No. 4,743,640 (columns 3-5). 
1,3-Diketones 
1,3-Dicarbonyl compounds which can be used can be linear or cyclic 
dicarbonyl compounds. Preference is given to dicarbonyl compounds of the 
formula 
##STR36## 
in which R.sup..circle-solid..sub.1 is C.sub.1 -C.sub.22 alkyl, C.sub.5 
-C.sub.10 hydroxyalkyl, C.sub.2 -C.sub.18 alkenyl, phenyl, phenyl which is 
substituted by OH, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or 
halogen, C.sub.7 -C.sub.10 phenylalkyl, C.sub.5 -C.sub.12 cycloalkyl, 
C.sub.5 -C.sub.12 cycloalkyl which is substituted by C.sub.1 -C.sub.4 
alkyl, or an --R.sup..circle-solid..sub.5 --S--R.sup.574 .sub.6 or 
--R.sup..circle-solid..sub.5 --O--R.sup..circle-solid..sub.6 group, 
R.sup..circle-solid..sub.2 is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.2 
-C.sub.12 alkenyl, phenyl, C.sub.7 -C.sub.12 alkylphenyl, C.sub.7 
-C.sub.10 phenylalkyl or a --CO--R.sup..circle-solid..sub.4 group, 
R.sup..circle-solid..sub.3 has one of the meanings given for 
R.sup..circle-solid..sub.1 or is C.sub.1 -C.sub.18 alkoxy, 
R.sup..circle-solid..sub.4 is C.sub.1 -C.sub.4 alkyl or phenyl, 
R.sup..circle-solid..sub.5 is C.sub.1 -C.sub.10 alkylene, and 
R.sup..circle-solid..sub.6 is C.sub.1 -C.sub.12 alkyl, phenyl, C.sub.7 
-C.sub.18 alkylphenyl or C.sub.7 -C.sub.10 phenylalkyl. 
These include the hydroxyl-containing diketones of EP-A-346 279 and the 
oxa- and thiadiketones of EP-A-307 358, and the isocyanuric acid-based 
diketones of U.S. Pat. No. 4,339,383. 
Alkyl R.sup..circle-solid..sub.1 and R.sup..circle-solid..sub.3 can be, in 
particular C.sub.1 -C.sub.18 alkyl, for example methyl, ethyl, n-propyl, 
isopropyl, n-butyl, tert-butyl, pentyl, hexyl, heptyl, octyl, decyl, 
dodecyl or octadecyl. 
Hydroxyalkyl R.sup..circle-solid..sub.1 and R.sup..circle-solid..sub.3 are, 
in particular, a --(CH.sub.2).sub.n --OH group, in which n is 5, 6 or 7. 
Alkenyl R.sup..circle-solid..sub.1 and R.sup..circle-solid..sub.3 can be, 
for example, vinyl, allyl, methallyl, 1-butenyl, 1-hexenyl or oleyl, 
preferably allyl. 
OH- , alkyl-, alkoxy- or halogen-substituted phenyl 
R.sup..circle-solid..sub.1 and R.sup..circle-solid..sub.3 can be, for 
example, tolyl, xylyl, tert-butylphenyl, methoxyphenyl, ethoxyphenyl, 
hydroxyphenyl, chlorophenyl or dichlorophenyl. 
Phenylalkyl R.sup..circle-solid..sub.1 and R.sup..circle-solid..sub.3 are, 
in particular, benzyl. Cycloalkyl or alkylcycloalkyl 
R.sup..circle-solid..sub.2 and R.sup..circle-solid..sub.3 are, in 
particular, cyclohexyl or methylcyclohexyl. 
Alkyl R.sup..circle-solid..sub.2 can be, in particular, C.sub.1 -C.sub.4 
alkyl. C.sub.2 -C.sub.12 alkenyl R.sup..circle-solid..sub.2 can be, in 
particular, allyl. Alkylphenyl R.sup..circle-solid..sub.2 can be, in 
particular, tolyl. Phenylalkyl R.sup..circle-solid..sub.2 can be, in 
particular, benzyl. R.sup..circle-solid..sub.2 is preferably hydrogen. 
Alkoxy R.sup..circle-solid..sub.3 can be, for example, methoxy, ethoxy, 
butoxy, hexyloxy, octyloxy, dodecyloxy, tridecyloxy, tetradecyloxy or 
octadecyloxy. C.sub.1 -C.sub.10 alkylene R.sup..circle-solid..sub.5 is, in 
particular, C.sub.2 -C.sub.4 alkylene. Alkyl R.sup..circle-solid..sub.6 
is, in particular, C.sub.4 -C.sub.12 alkyl, for example butyl, hexyl, 
octyl, decyl or dodecyl. Alkylphenyl R.sup..circle-solid..sub.6 is, in 
particular, tolyl. Phenylalkyl R.sup..circle-solid..sub.6 is, in 
particular, benzyl. 
Examples of 1,3-dicarbonyl compounds of the above formula are 
acetylacetone, butanoylacetone, heptanoylacetone, stearoylacetone, 
palmitoylacetone, lauroylacetone, 7-tert-nonylthioheptane-2,4-dione, 
benzoylacetone, dibenzoylmethane, lauroylbenzoylmethane, 
palmitoylbenzoylmethane, stearoylbenzoylmethane, isooctylbenzoylmethane, 
5-hydroxycaproylbenzoylmethane, tribenzoylmethane, 
bis(4-methylbenzoyl)methane, benzoyl-p-chlorobenzoylmethane, 
bis(2-hydroxybenzoyl)methane, 4-methoxybenzoylbenzoylmethane, 
bis(4-methoxybenzoyl)methane, 1-benzoyl-1-acetylnonane, 
benzoylacetylphenylmethane, stearoyl-4-methoxybenzoylmethane, 
bis(4-tert-butylbenzoyl)methane, benzoylformylmethane, 
benzoylphenylacetylmethane, bis(cyclohexanoyl)methane, 
di(pivaloyl)methane, methyl, ethyl, hexyl, octyl, dodecyl or octadecyl 
acetoacetate, ethyl, butyl, 2-ethylhexyl, dodecyl or octadecyl 
benzoylacetate, ethyl, propyl, butyl, hexyl or octyl stearoyl acetate and 
dehydracetic acid, and the zinc or magnesium salts thereof. 
Preference is given to 1,3-diketo compounds of the above formula in which 
R.sup..circle-solid..sub.1 is C.sub.1 -C.sub.18 alkyl, phenyl, phenyl 
which is substituted by OH, methyl or methoxy, C.sub.7 -C.sub.10 
phenylalkyl or cyclohexyl, R.sup..circle-solid..sub.2 is hydrogen, and 
R.sup..circle-solid..sub.3 has one of the meanings given for 
R.sup..circle-solid..sub.1. 
The 1,3-diketo compounds can be used in an amount of, for example, from 
0.01 to 10 parts by weight, preferably from 0.01 to 3 parts by weight, in 
particular from 0.01 to 2 parts by weight, based on 100 parts of weight of 
PVC. 
Perchlorates or perchloric acid of the formula M(ClO.sub.4)n, where M is 
H.sup.+, NH.sub.4.sup.+, Na.sup.+, K.sup.+, Mg.sup.2+, Ca.sup.2+, 
Ba.sup.2+ or Al.sup.3+, can likewise be added. The index n is 1, 2 or 3, 
corresponding to the valence of M. 
Perchloric acid or the particular perchlorate can be employed in various 
customary forms, for example as a salt or an aqueous solution coated onto 
a support material, such as PVC, calcium silicate, zeolites or 
hydrotalcites, or bonded into a hydrotalcite by chemical reaction. 
The perchlorates can be used in an amount of, for example, from 0.001 to 5 
parts by weight, preferably from 0.01 to 3 parts by weight, particularly 
preferably from 0.01 to 2 parts by weight, based on 100 parts by weight of 
PVC. 
Examples of suitable UV absorbers and light stabilizers are: 
1.2-(2'-Hydroxyphenyl)benzotriazoles, for example 
2-(2'-hydroxy-5'-methylphenyl)benzotriazole, 
2-(3',5'-di-tert-butyl-2'-hydroxyphenyl)benzotriazole, 
2-(5'-tert-butyl-2'-hydroxyphenyl)benzotriazole, 
2-(2'-hydroxy-5'-(1,1,3,3-tetramethylbutyl)phenyl)benzotriazole, 
2-(3',5'-di-tert-butyl-2'-hydroxyphenyl)-5-chlorobenzotriazole, 
2-(3'-tert-butyl-2'-hydroxy-5'-methylphenyl)-5-chlorobenzotriazole, 
2-(3'-sec-butyl-5'-tert-butyl-2'-hydroxyphenyl)benzotriazole, 
2-(2'-hydroxy-4'-octoxyphenyl)benzotriazole, 
2-(3',5'-di-tert-amyl-2'-hydroxyphenyl)benzotriazole, 
2-(3',5'-bis(.alpha.,.alpha.-dimethylbenzyl)-2'-hydroxyphenyl)benzotriazol 
e, mixture of 
2-(3'-tert-butyl-2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)-5-chlorobe 
nzotriazole, 
2-(3'-tert-butyl-5'-2-(2-ethylhexyloxy)carbonylethyl!-2'-hydroxyphenyl)-5 
-chlorobenzotriazole, 
2-(3'-tert-butyl-2'-hydroxy-5'-(2-methoxycarbonylethyl)phenyl)-5-chloroben 
zotriazole, 
2-(3'-tert-butyl-2'-hydroxy-5'-(2-methoxycarbonylethyl)phenyl)benzotriazol 
e, 
2-(3'-tert-butyl-2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)benzotriazo 
le, 
2-(3'-tert-butyl-5'-2-(2-ethylhexyloxy)carbonylethyl!-2'-hydroxyphenyl)be 
nzotriazole, 2-(3'-dodecyl-2'-hydroxy-5'-methylphenyl)benzotriazole, and 
2-(3'-tert-butyl-2-hydroxy-5 
'-(2-isooctyloxycarbonylethyl)phenylbenzotriazole, 2,2'-methylenebis4-( 
1,1,3,3-tetramethylbutyl)-6-benzotriazol-2-yl phenol!; transesterification 
product of 
2-3'-tert-butyl-5'-(2-methoxycarbonylethyl)-2'-hydroxyphenyl!benzotriazol 
e with polyethylene glycol 300; R--CH.sub.2 CH.sub.2 --COO(CH.sub.2).sub.3 
!.sub.2 where R=3'-tert-butyl-4'-hydroxy-5'-2H-benzotriazol-2-yl phenyl. 
2.2-Hydroxybenzophenones, for example the 4-hydroxy, 4-methoxy, 4-octoxy, 
4-decyloxy, 4-dodecyloxy, 4-benzyloxy, 4,2',4'-trihydroxy and 
2'-hydroxy-4,4'-dimethoxy derivatives. 
3. Esters of unsubstituted or substituted benzoic acids, for example 
4-tert-butyl-phenyl salicylate, phenyl salicylate, octylphenyl salicylate, 
dibenzoylresorcinol, bis(4-tert-butylbenzoyl)resorcinol, 
benzoylresorcinol, 2,4-di-tert-butylphenyl 
3,5-di-tert-butyl-4-hydroxybenzoate, hexadecyl 
3,5-di-tert-butyl-4-hydroxybenzoate, octadecyl 
3,5-di-tert-butyl-4-hydroxybenzoate, 2-methyl-4,6-di-tert-butylphenyl 
3,5-di-tert-butyl-4-hydroxybenzoate. 
4. Acrylates, for example ethyl and isooctyl 
.alpha.-cyano-.beta.,.beta.-diphenylacrylate, methyl 
.alpha.-carbomethoxycinnamate, methyl and butyl 
.alpha.-cyano-.beta.-methyl-p-methoxycinnamate, methyl 
.alpha.-carbomethoxy-p-methoxycinnamate and 
N-(.beta.-carbomethoxy-.beta.-cyanovinyl)-2-methylindoline. 
5. Nickel compounds, for example nickel complexes of 
2,2'-thiobis4-(1,1,3,3-tetramethylbutyl)phenol!, such as the 1:1 and 1:2 
complexes, if desired with additional ligands, such as n-butylamine, 
triethanolamine or N-cyclohexyldiethanolamine, nickel 
dibutyldithiocarbamate, nickel salts of monoalkyl esters, such as the 
methyl or ethyl esters, of 4-hydroxy-3,5-di-tert-butylbenzylphosphonic 
acid, nickel complexes of ketoximes, such as of 2-hydroxy-4-methylphenyl 
undecyl ketoxime, and nickel complexes of 
1-phenyl-4-lauroyl-5-hydroxypyrazole, if desired with additional ligands. 
6. Oxalamides, for example 4,4'-dioctyloxyoxanilide, 
2,2'-dioctyloxy-5,5'-di-tert-butyloxanilide, 
2,2'-didodecyloxy-5,5'-di-tert-butyloxanilide, 2-ethoxy-2'-ethyloxanilide, 
N,N'-bis(3-dimethylaminopropyl)oxalamide, 
2-ethoxy-5-tert-butyl-2'-ethyloxanilide and mixtures thereof with 
2-ethoxy-2'-ethyl-5,4'-di-tert-butyloxanilide, and mixtures of o- and 
p-methoxy- and of o- and p-ethoxy-disubstituted oxanilides. 
7.2-(2-Hydroxyphenyl)-1,3,5-triazines, for example 
2,4,6-tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine, 
2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 
2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 
2,4-bis(2-hydroxy-4-propyloxyphenyl)-6-(2,4-dimethylphenyl)-1,3,5-triazine 
, 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(4-methylphenyl)-1,3,5-triazine, 
2-(2-hydroxy-4-dodecyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin 
e, 
2-2-hydroxy-4-(2-hydroxy-3-butoxypropoxy)phenyl!-4,6-bis(2,4-dimethylphen 
yl)-1,3,5-triazine, 
2-2-hydroxy-4-(2-hydroxy-3-octyloxypropoxy)phenyl!-4,6-bis(2,4-dimethylph 
enyl)-1,3,5-triazine. 
Examples of suitable peroxide scavengers are: esters of 
.beta.-thiodipropionic acid, for example the lauryl, stearyl, myristyl or 
tridecyl esters, mercaptobenzimidazole, the zinc salt of 
2-mercaptobenzimidazole, zinc dibutyldithiocarbamate, dioctadecyl 
disulfide, pentaerythrityl tetrakis(.beta.-dodecylmercapto)propionate and 
ethylene glycol bismercaptoacetate. 
Examples of suitable lubricants are: 
montan wax, fatty acid esters, PE waxes, amide waxes, chlorinated 
paraffins, glycerol esters and alkaline earth metal soaps. Lubricants 
which can be used are also described in "Plastics Additives", edited by R. 
Gachter and H. Muller, Hanser Verlag, 3rd Edition, 1990, pages 466-470. If 
calcium soaps are used, they can be employed in the usual amounts for 
lubricants, preferably less than 0.3 part, particularly preferably less 
than 0.2 part, per 100 parts of PVC. 
Examples of other metal-free stabilizers which can be used are 
.beta.-naphthol, hydroxydiphenylamine, .beta.-aminocrotonates (for example 
as mentioned in EP 0 465 405, p. 6, lines 9-14), phenylindoles, pyrroles, 
as described, for example, in EP-A-465 405, and hydroxydiphenylamines. 
Examples of suitable polyols are: 
pentaerythritol, dipentaerythritol, tripentaerythritol, 
bistrimethylolpropane, bistrimethylolethane, trismethylolpropane, 
sorbitol, lycasin, mannitol, lactose, tris(hydroxyethyl) isocyanurate, 
tetramethylolcyclohexanol, tetramethylolcyclopentanol, 
tetramethylolcyclopyranol, glycerol, diglycerol and polyglycerol. 
The polyols can be used in an amount of, for example, from 0.01 to 20 parts 
by weight, preferably from 0.1 to 20 parts by weight, in particular from 
0.1 to 10 parts by weight, based on 100 parts by weight of PVC. 
Suitable organic phosphites are those of the general formula P(OR).sub.3, 
where the radicals R are identical or different alkyl, alkenyl, aryl or 
aralkyl radicals. Preferred organic phosphites are those of the formulae 
##STR37## 
in which R.sub.1 ", R.sub.2 " and R.sub.3 " are identical or different and 
are C.sub.6 -C.sub.18 alkyl, C.sub.6 -C.sub.18 alkenyl, substituted or 
unsubstituted phenyl or C.sub.5 -C.sub.7 cycloalkyl. 
C.sub.6 -C.sub.18 alkyl R.sub.1 ", R.sub.2 " and R.sub.3 " are, for 
example, n-hexyl, n-octyl, n-nonyl, decyl, dodecyl, tetradecyl, hexadecyl 
or octadecyl. Preference is given to alkyl groups having 8 to 18 carbon 
atoms. 
Substituted phenyl R.sub.1 ", R.sub.2 " and R.sub.3 " are, for example, 
tolyl, ethylphenyl, xylyl, cumyl, cymyl, cresyl, 4-methoxyphenyl, 
2,4-dimethoxyphenyl, ethoxyphenyl, butoxyphenyl, p-n-octylphenyl, 
p-n-nonylphenyl or p-n-dodecylphenyl. 
Particularly suitable phosphites are trioctyl, tridecyl, tridodecyl, 
tritetradecyl, tristearyl, trioleyl, triphenyl, tricresyl, 
tris-p-nonylphenyl and tricyclohexyl phosphites, and particular preference 
is given to aryl dialkyl phosphites and alkyl diaryl phosphites, for 
example phenyl didecyl, 2,4-di-tert-butylphenyl didodecyl and 
2,6-di-tert-butylphenyl didodecyl phosphites and dialkyl and diaryl 
pentaerythrityl diphosphites, such as distearyl pentaerythrityl 
diphosphite, and non-stoichiometric triaryl phosphites, for example of the 
composition (H.sub.19 C.sub.9 --C.sub.6 H.sub.4)O.sub.1.5 P(OC.sub.12,13 
H.sub.25,27).sub.1.5. 
Preferred organic phosphites are distearyl pentaerythrityl diphosphite, 
trisnonylphenyl phosphite and phenyl didecyl phosphite. 
The organic phosphites can be used in an amount of, for example, from 0.01 
to 10 parts by weight, preferably from 0.05 to 5 parts by weight, in 
particular from 0.1 to 3 parts by weight, based on 100 parts by weight of 
PVC. 
Preference is given to a composition comprising PVC, polyDHP, a compound 
from the group consisting of hydrotalcite, zeolite, dawsonite, magadiite, 
kenyaite, disaccharide alcohol and sterically hindered amine, and a zinc 
soap. 
Preference is given to compositions comprising (a) PVC, (b) 0.001-5 parts 
of polyDHP per 100 parts of PVC, (c) 0.1-20 parts of a hydrotalcite, 
zeolite, dawsonite, magadiite, kenyaite or disaccharide alcohol or from 
0.01 to 5 parts of a hindered amine, in each case per 100 parts of PVC, 
and (d) 0.01-10.0 parts of a zinc soap, per 100 parts of PVC. 
Preference is furthermore given to a PVC composition comprising components 
(a), (b), (c) and (d) described at the outset and in addition at least one 
substance from the group consisting of plasticizers, fillers and 
reinforcing materials, antioxidants, metal soaps, further metal 
stabilizers, polyols, organic phosphites, 1,3-diketo compounds, light 
stabilizers, UV absorbers, lubricants, fatty acid esters, paraffins, 
flowing agents, optical brighteners, pigments, flameproofing agents, 
antistatics, .beta.-aminocrotonates, perchlorates, epoxides, pyrroles, 
naphthols, hydroxydiphenylamines, phenylindoles, phosphates, 
thiophosphates, gelling aids, peroxide scavengers, modifiers and further 
complexing agents for Lewis acids. 
Preference is furthermore given to a PVC composition which additionally 
comprises a 1,3-diketo compound, in particular in an amount of from 0.01 
to 10 parts per 100 parts of PVC. 
Preference is furthermore given to a PVC composition which additionally 
comprises a polyol, preferably trishydroxyethyl isocyanurate (THEIC), in 
particular in an amount of from 0.01 to 20 parts per 100 parts of PVC. 
Preference is furthermore given to a PVC composition which additionally 
comprises at least one additive from the group consisting of organic 
phosphites, metal-free stabilizers (such as .beta.-aminocrotonate, 
pyrroles, hydroxydiphenylamines and .beta.-naphthol), polyols and 
1,3-diketones. 
Preference is furthermore given to a PVC composition which additionally 
comprises an organic phosphite, in particular in an amount of from 0.01 to 
5 parts per 100 parts of PVC. 
Preference is furthermore given to a PVC composition which additionally 
comprises an antioxidant. 
Particular preference is given to a PVC composition which additionally 
comprises a calcium and/or zinc soap, a polyol and a .beta.-diketone. 
Particular preference is also given to a PVC composition which additionally 
comprises a filler. 
The present invention furthermore relates to a stabilizer combination 
comprising 
polyDHP of the formula I, as described at the outset, 
a substance from the group consisting of 
(i) crystalline hydrotalcites, 
(ii) crystalline or amorphous zeolites, 
(iii) crystalline or amorphous dawsonites, magadiites or kenyaites, 
(iv) disaccharide alcohols and 
(v) sterically hindered amines containing the structural unit 
##STR38## 
in which R.degree. is hydrogen or methyl, and at least one zinc, 
aluminium or lanthanoid compound, and in particular to the use of such a 
combination for stabilizing PVC. 
The above preferences apply to the individual stabilizers and to the PVC 
itself, and in addition one of the above-described further constituents 
can likewise be used. 
The stabilizers can expediently be incorporated by the following methods: 
as an emulsion or dispersion (one possibility is, for example, the form of 
a pasty mixture. One advantage of the novel combination in this form is in 
the stability of the paste); 
as a dry mix during mixing of additive components or polymer mixtures; 
by direct addition into the processing apparatus (for example calender, 
mixer, compounder, extruder and the like) or 
as a solution or melt. 
The novel stabilized PVC, which is likewise a subject-matter of the 
invention, can be prepared in a manner known per se, to which end the 
novel stabilizer combination and, if desired, further additives are mixed 
with the PVC using equipment known per se, such as that mentioned above. 
During this operation, the stabilizers can be added individually or as a 
mixture or alternatively in the form of a masterbatch. 
The invention thus also relates to a process for the preparation of 
stabilized PVC which comprises mixing components (b) (c) and (d) described 
above and, if desired, further additives with the PVC using equipment such 
as calenders, mixers, compounders, extruders and the like. 
The PVC stabilized in accordance with the present invention can be 
converted into the desired shape in a known manner, for example by 
grinding, calendering, extrusion, injection moulding, sintering or 
spinning, furthermore by extrusion blow moulding or by the plastisol 
process. The stabilized PVC can also be converted into foams. If the 
blowing agent employed is azodicarboxamide, it is advantageous if no 
1,3-diketones are additionally used. 
The novel PVC is suitable for semirigid and flexible formulations, in 
particular in the form of flexible formulations for wire sheaths, crash 
pad films (automobiles) and cable insulations, which is particularly 
preferred. In the form of semirigid formulations, the novel PVC is 
particularly suitable for decoration sheeting, foams, agricultural 
sheeting, tubes, sealing profiles and office films. 
In the form of rigid formulations, the PVC stabilized in accordance with 
the invention is particularly suitable for hollow articles (bottles), 
packaging films (thermoformable films), blown films, tubes, foams, heavy 
profiles (window frames), light-wall profiles, building profiles, sidings, 
fittings, office films and equipment housings (computers and domestic 
appliances). 
Examples of the use of the novel PVC as plastisols are artificial leather, 
floor coverings, textile coatings, wall coverings, coil coatings and 
automobile underseal. 
Examples of sintered applications of the PVC stabilized in accordance with 
the invention are slush, slush mould and coil coatings.

The examples below illustrate the invention in greater detail without 
representing a limitation. Parts and percentages are, as in the remainder 
of the description, by weight, unless stated otherwise. 
Examples: 
A PVC composition is prepared by mixing the individual components as shown 
in the table below (amounts in parts by weight). The constituents are 
homogenized for 5 minutes at 170.degree. C. in a mixing mill, giving a 
film with a thickness of 0.3-0.5 mm. 
The stability of the samples is determined by means of the following tests: 
Long-term milling test 
The PVC mixture is milled at a temperature of 180.degree. C. in a mill with 
a nip width of 0.3 mm, and a sample is taken every 12 minutes and cooled, 
and its yellowness index (YI) is measured (Table I). 
Pressed sheet 
Several samples of sheeted-out compound homogenized as above are pressed 
for 3 minutes at 180.degree. to give a sheet with a thickness of 2 mm; the 
yellowness index of the latter is measured after cooling (Table I). 
TABLE I 
______________________________________ 
Long-term milling test/yellowness index of pressed sheet 
Mixture Example 1 
______________________________________ 
PVC K value 50 100 
LOXIOL .RTM. G15.sup.1) 
1 
Wax AC 316.sup.2) 0.2 
ALOID .RTM. BTA 736.sup.3) 
10 
KANE .RTM. Ace B22.sup.4) 
1 
Calcium stearate 0.3 
Zinc stearate 0.3 
Zinc benzoate 0.15 
IRGANOX .RTM. 1076.sup.5) 
0.15 
ALKAMIZER .RTM. IV.sup.6) 
0.8 
epoxidized soybean oil 
1 
Dipentaerythritol 0.15 
SYNESAL .RTM. M.sup.7) 
0.1 
RHODIASTAB .RTM. 50.sup.8) 
0.35 
YI after 12 minutes 
11 
YI after 24 minutes 
13 
YI after 36 minutes 
22 
YI of the pressed sheet 
24.1 
______________________________________ 
.sup.1) Glycerol partial ester; 
.sup.2) Ester wax; 
.sup.3) Polymethyl methacrylate; 
.sup.4) Acrylate polymer as processing aid; 
.sup.5) nOctadecyl 33,5di-tert-butyl-4-hydroxyphenyl!propionate, phenoli 
antioxidant from Ciba; 
.sup.6) Hydrotalcite from Kyowa (JP); 
.sup.7) commercially available polyDHP from Lagor (IT); 
.sup.8) Stearoylbenzoylmethane 
It is found that the novel composition has very good stability.