Derivatives of N-HALS-substituted amic acid hydrazides

Details Derivatives of N-HALS-substituted amic acid hydrazides Derivatives of N-HALS-substituted amic acid hydrazides

1991-11-18

1994-08-16

Morgan, Kriellion S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546 14, 546187, 546190, 546208, 546244, 524 99, 524102, C08K 53432, C07D21156, C07D21130

Patent

active

053388534

ABSTRACT:
N-(2,2,6,6-tetraalkyl-4-piperidinyl)amic acid hydrazides contain a light stabilizing group, a heat stabilizing group and an amic acid hydrazide functionality in the same molecule. The amic acid hydrazide functionality in the compounds enhances the photooxidative stabilizing properties of the hindered amine groups and contributes thermal and oxidative stabilizing and metal complexing properties to the compounds. The novel compounds are excellent light stabilizers for polyolefins, have low volatility and are not readily lost from polymeric systems via volatilization, migration or extraction.

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Communication dated May 3, 1991 from EPO enc. Search Report.

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