Patent GB-1328139-A (GB)
Title: Stabilization of organic materials
IPC: C10M137/12
Filed: 1970-08-28
Abstract: 1328139 Stabilizing polymers CIBA-GEIGY AG 28 Aug 1970 [29 Aug 1969] 41539/70 Headings C3P and C3R [Also in Division C5] Polymers are stabilized with (a) an organophosphorus compound selected from (1) where M is a metal of valence 1 to 4, x is 1 or 2, G is an anion of valence 1 to 3, E is where z is 0 to 6, y is 1 to 4, n is 0 or 1, m is 1 to 3, p is 0 to 3, alkyl has 1 to 30 carbon atoms, lower alkyl has 1 to 6 carbon atoms and where r is the valence of G and v is an available valence of M, and (2) where M<SP>1</SP> is a metal or metal complex cation of valence 1 to 4, z is 0 to 6, y is 1 to 4, v is 1 to 4, lower alkyl has 1 to 6 carbon atoms and R<SP>2</SP> is alkyl, cycloalkyl or aryl; together with (b) at least one phenolic antioxidant optionally with a secondary antioxidant, ultraviolet light absorber, pigment, alkaline earth metal stearate buffer, light stabilizer other than (a) or organic phosphite. Specified polymers are vinyl halide polymers, polyolefins, polyurethanes, polyamides, polyesters, polycarbonates, polyacetals, polyethylene oxides and styrene polymers. Specified ultra violet light absorbers are salicylates, benzophenones, benzotriazoles and acrylates; synergists are dialkyl thiodipropionates and trihydrocarbyl phosphites and thiophosphites; and stearates are calcium and magnesium stearates. The compositions may also contain conventional dyeing assistants such as basic nitrogen polymers and metal deactivators such as oxamide, oxanilide and hydrazides. Extensive lists of stabilizer components and conventional additives are given and examples describe the stabilizing of (1-15, 17, 18 and 22-40) polypropylene, (8) polyethylene, polybutene, poly 4-methylpentene-1, polyisoprene, polyurethane, polymethylene terephthalate, polyacetal and polyethylene oxide, (19) ABS terpolymer, (20) nylon 6 and (21) polyvinyl chloride with stabilizer systems comprising nickel bis [O-n-butyl-3,5-di-t-butyl-4-hydroxybenzyl phosphonate], O-n-butylchloronickel-3,5- di-t-butyl hydroxybenzyl phosphonate, nickel bis [3,5-di-t-butyl-4-hydroxybenzyl) benzene phosphinate, nickel bis[O - methyl - 3,5 - di - tbutyl - 4 - hydroxybenzyl phosphonate], nickel bis[O-octadecyl 3-methyl-4-hydroxy-5-t-butylbenzyl phosphonate], tin bis[O-butyl-3,5- dit-butyl-4-hydroxy benzyl phosphnoate], nickel [3,5-di-t-butyl-4-hydroxy benzyl benzenephosphinate] acetate, aluminium tris[O - butyl - 3,5 - dit - butyl - 4 - hydroxybenzyl phosphonate], sodium[O - butyl 3,5 - di - t - butyl - 4 - hydroxybenzyl phosphonate], cupric bis[O-hexadecyl 3,5- di - t - butyl - 4 - hydroxyphenylpropyl phosphonate], ferric tris[O - octadecyl 3,5 - di - tbutyl - 4 - hydroxyphenylethyl phosphonate], chromium tris[O - butyl 3,5 - di - t - butyl- 4 - hydroxybenzyl phosphonate], cobalt bis- [O - butyl 3,5 - di - t - butyl - 4 - hydroxybenzyl phosphonate] and zinc 3,5 - di - tbutyl - 4 - hydroxybenzyl phosphonate; together with one or more of 2(2<SP>1</SP>-hydroxy-3<SP>1</SP>,5<SP>1</SP>- di - t - butylphenyl) - 7 - chlorobenzotriazole, 2 - hydroxy - 4 - octoxybenzophenone, dioctadecyl 3,5 - di - t - butyl - 4 - hydroxybenzyl phosphonate, octadecyl #(3,5 - di - t - butyl- 4 - hydroxyphenyl)propionate, dilauryl thiodipropionate, titanium dioxide, distearyl thiodipropionate, 2,4,6 - tri - t - butylphenol, tris nonylphenyl phosphite, calcium oxide, 2,4-bis- (n - octylthio) - 6- (3,5 - di - t -butyl - 4 - hydroxy anilino) - 1,3,5 - triazine, polyvinyl pyridine, 2,4 - di - t - butylphenyl 3,5 - di - t - butyl - 4- hydroxybenzoate, dyes, 2,4 - bis(3,5 - di - tbutyl - 4 - hydroxyphenoxy) - 6 - (n - octylthio)- 1,3,5 - triazine, 2- hydroxy - 4 - methoxy - 21- carboxybenzophenone, 2,21 - methylene bis- (6 - t - butyl - 4 - methyl phenol), 2,6 - di - tbutyl hydroquinone, 4,4<SP>1</SP> - thio bis(2 - t - butyl- 5 - methylphenol), octadecyl(3,5 - dimethyl- 4-hydroxybenzylthio acetate), 1,1,3 - tris(5 - tbutyl - 4 - hydroxy - 2 - methylphenyl)butane, 1,4 - di(3,5 - di - t - butyl - 4 - hydroxybenzyl)- 2,3,5,6 - tetramethylbenzene, 2,4 - dihydroxybenzophenone, 2 - chloro - 2<SP>1</SP> - hydroxybenzophenone, 4 - t - butyl phenyl salicylate, resorcinol monobenzoate, hexamethyl phosphorotriamide, nickel bis(octylphenyl) sulphide, ethyl 2 - cyano - 3,3 - diphenylacrylate, 2(2<SP>1</SP> - hydroxy - 5<SP>1 </SP>- methylphenyl)benzotriazole, lauryl p-amino phenol, 2-ethylhexyl 2-cyano- 3,3-diphenylacrylate, calcium stearate, 2(2<SP>1</SP>- hydroxy - 3<SP>1</SP>,5<SP>1</SP> - di - t - butyl phenyl) -7 - chlorobenzotriazole and 2(2<SP>1</SP>-hydroxy-3<SP>1</SP>,5<SP>1</SP>-di-t-amylphenyl) benzotriazole.