Patent ID: 6126861
Filing Date: 2000-10-03
Classification: C07D,C08K

Abstract:
A composition consisting of a photoreactive, UV light absorbing, low molecular weight polyalkylpiperidine of formula I as component A ##STR19## wherein R.sub.1 is hydrogen, hydroxyl, C.sub.1-20 alkyl, C.sub.1-20 alkoxy, or acyl, andR.sub.2 is hydrogen, C.sub.1-8 alkyl, or C.sub.1-2 alkoxy,and a non-photoreactive, low molecular weight sterically hindered polyalkyl-piperidine as component B wherein component B is a compound of formula:R.sub.3 --OC(O)--(CH.sub.2).sub.n --C(O)O--R.sub.3 B- 1;R.sub.3 --NH--(CH.sub.2).sub.n --NH--R.sub.3 B- 2;R.sub.3 --OCH.sub.2 CH.dbd.CHCH.sub.2 --O--R.sub.3 B- 3;R.sub.3 --OC(O)--NR.sub.3 --(CH.sub.2).sub.6 --NR.sub.3 C(O)O--R.sub.3B- 4;R.sub.3 --O--Si(CH.sub.3).sub.2 --O--R.sub.3 B- 5;whereinR.sub.3 is a group selected from the group consisting of: ##STR20## wherein Alkyl is linear or branched or cyclic saturated C.sub.1-18 alkyl group or linear or branched or cyclic C.sub.1-18 unsaturated group (alkenyl group),n is an integer from 0 to 20; ##STR21## wherein R.sub.4 is hydrogen, C.sub.1-20 alkyl, or R.sub.3 ; ##STR22## wherein X is oxygen or N--R.sub.4, ##STR23## wherein R.sub.5 is hydrogen, C.sub.1-20 alkyl, hydroxyl, C.sub.1-20 alkoxy, or acyl,R.sub.6 is hydrogen, C.sub.1-20 alkyl, ##STR24## or (CH.sub.2).sub.m COOR.sub.7, wherein m is an integer selected from 0 to 10,R.sub.7 is C.sub.1-20 alkyl; ##STR25##R.sub.3 --NH--C(O)--(CH.sub.2).sub.n --C(O)--NH--R.sub.3 B- 12;R.sub.3 --NR.sub.4 --(CH.sub.2).sub.m COOR.sub.7 B- 13;R.sub.3 --OC(O)CH.sub.2 CH[C(O)OR.sub.3 ]CH[C(O)OR.sub.3 ]CH.sub.2 C(O)O--R.sub.3 B- 14;R.sub.3 --OC(O)(CH.sub.2).sub.n --CH.sub.3 B- 15;R.sub.3 OC(O)--Aryl B-16;(R.sub.3).sub.3 P B-17;(R.sub.3).sub.2 PR B-18;R.sub.3 PRR B-19; ##STR26## wherein R.sub.10 is hydrogen, C.sub.1-10 alkyl, or C.sub.1-10 alkenyl,R is hydrogen, C.sub.1-20 alkyl, alkoxy, --C(O)alkyl, --OC(O)alkyl or ##STR27## wherein n is an integer from 1 to 19; ##STR28## orR.sub.3 --O--CH.dbd.C(COOR.sub.3).sub.2 B- 24.