Compounds having two bis (2,2,6,6-tetramethyl-4-piperidyl)-subst

Details Compounds having two bis (2,2,6,6-tetramethyl-4-piperidyl)-subst Compounds having two bis (2,2,6,6-tetramethyl-4-piperidyl)-subst

1981-12-04

1982-12-28

Hayes, Lorenzo B.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524105, 524106, 544242, 546186, 546187, 546192, 546223, C08K 534, C07D 4019, C07D21108

Patent

active

043662773

ABSTRACT:
Novel compounds having two bis (2,2,6,6-tetramethyl-4-piperidyl)-substituted nitrogen heterocyclic rings are provided which are useful as stabilizers for organic polymers. Organic polymer containing the novel compounds having two bis (2,2,6,6-tetramethyl-4-piperidyl)-substituted nitrogen heterocyclic ring compounds exhibit improved resistance to deterioration induced by light, by heat or by a combination of light and heat.

REFERENCES:
patent: 4279804 (1981-07-01), Cantatore et al.
patent: 4316025 (1982-02-01), Cantatore et al.

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