Polymeric light stabilizers having at least one 2,2,6,6-tetraalk

Details Polymeric light stabilizers having at least one 2,2,6,6-tetraalk Polymeric light stabilizers having at least one 2,2,6,6-tetraalk

1982-04-22

1983-09-13

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524102, 5253276, 525203, 525375, 546242, 546190, C08K 534, C08L 6700, C07D21108

Patent

active

044043015

ABSTRACT:
Polymeric light stabilizers are provided having at least one 2,2,6,6-tetraalkyl piperidyl group in the molecule and a molecular weight within the range from about 1000 to about 20,000, that are polymers of an unsaturated carboxylic acid ester selected from the group consisting of unsaturated cycloaliphatic mono-, di, and tri-carboxylic acid esters having from seven to about thirty carbon atoms; unsaturated branched-chain aliphatic di- and tri-carboxylic acid esters having from four to about thirty carbon atoms; sorbic acid ester, 3,8-nonadienyl acid ester, oleic acid ester, linolenic acid ester and ricinoleic acid ester; or copolymers of at least one thereof with another copolymerizable unsaturated monomer; and synthetic resin compositions having improved light stability comprising per 100 parts by weight of resin from 0.001 to 10 parts by weight of the polymeric light stabilizer.

REFERENCES:
patent: 4233410 (1980-11-01), Rody et al.
patent: 4279805 (1981-07-01), Ohzeki et al.

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