Polymeric light stabilizers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

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Details

528111, 528113, 528310, 528341, 528361, 528407, 546188, 525113, 525438, 525452, C08G 5950, C08G 6526, C08K 534

Patent

active

044800843

ABSTRACT:
This invention is directed to polymeric compounds which contain the polyalkylpiperidine radical and at least two primary hydroxyl groups. These compounds are useful as light stabilizers for plastics and coatings. More particularly, the polymeric stabilizers is formed by chain extending polyalkylpiperidine with an excess of epoxy resin to form a diepoxide functional polymer which is then capped with hydroxy functional monomer.

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