Polymeric hindered amines

Details Polymeric hindered amines Polymeric hindered amines

1982-05-05

1985-05-28

Kight, John

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525285, 5253282, 525375, 524 86, 524 99, 524102, 546187, 546192, 546208, C08F 2912, C07D40107

Patent

active

045201714

ABSTRACT:
Disclosed is a new class of polymeric hindered amine light stabilizers based on maleic anhydride modified polyolefins reacted with tetramethyl piperidine derivatives. These materials are more effective than most of the generally used hindered amine light stabilizers, but due to their higher molecular weights and the polyolefin backbone, they are more compatible with polyolefins.

REFERENCES:
patent: 3483276 (1969-12-01), Mahlman
patent: 3849373 (1974-11-01), Siegle et al.
patent: 4260689 (1981-04-01), Rody et al.
patent: 4356307 (1982-10-01), Kelkenberg et al.

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