03-01-2019 дата публикации
Номер: US20190002631A1
Disclosed are polymer compounds wherein the main polymer chain is a polyester and the pendants are polyalkylpiperidine. The compounds of the invention, either alone or mixed with other known agents, are useful as stabilisers of polymers, especially polyolefins. 3. Compounds according to wherein:n ranges from 3 to 20,{'sub': 1', '20, 'A is a straight C-Calkylene group,'}{'sub': 2', '2', '2', '2', '2', '3', '2', '2', '3, 'D is a —CH—CH—, —CH—CH—CH—, —CH(CH)—CH— or —CH—CH(CH)— group,'}{'sub': 1', '2, 'Rand Rare methyl or ethyl,'}{'sub': 3', '4, 'Rand Rare hydrogen or n-butyl,'}{'sub': 5', '6, 'Rand Rare hydrogen or methyl.'}4. Compounds according to n ranges from 3 to 20,', {'sub': 2', '8, 'A is a —(CH)— group'}, {'sub': 2', '2', '3', '2', '2', '3, 'D is a —CH—CH—, —CH(CH)—CH— or —CH—CH(CH)— group,'}, {'sub': 1', '2, 'Rand Rare methyl,'}, {'sub': 3', '4, 'Rand Rare n-butyl,'}, {'sub': 5', '6, 'Rand Rare hydrogen or methyl.'}], 'wherein5. Mixtures of compounds according to .7. Mixtures according to comprising 10% to 90% by weight of the compounds of formula (I).8. Mixtures according to further comprising antioxidants; UV absorbers; nickel stabilisers; plasticisers claim 6 , lubricants claim 6 , antistatic agents claim 6 , flame retardants claim 6 , corrosion inhibitors claim 6 , metal deactivators or mineral fillers.9. Method of stabilizing a polymer with the compounds according to claim 1 , said method comprising:mixing said compounds with said polymer.10. Method of stabilizing a polymer with the mixture according to claim 6 , said method comprising mixing said mixtures with said polymer.11. The method according to wherein said polymer is selected from the group consisting of polyethylene claim 9 , polypropylene claim 9 , polystyrene claim 9 , polybutadiene claim 9 , polyisoprene and copolymers thereof claim 9 , polyvinyl chloride claim 9 , polyvinylidene chloride and copolymers thereof claim 9 , polyvinyl acetate and copolymers thereof with ethylene; polyesters; ...
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