Substituted piperazinone light stabilizers

Details Substituted piperazinone light stabilizers Substituted piperazinone light stabilizers

1986-11-12

1988-06-28

Hollrah, Glennon H.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524102, 544231, 544357, 544384, C07D24104

Patent

active

047539798

ABSTRACT:
Compounds of the formula (T).sub.g -E where T is a substituted 4-acyl-2-piperazinone group, g is 1 or 2 and E is a selected terminal or linking group, are effective light stabilizers for polyolefins and other organic polymers, particularly thermoset acrylic or alkyd acrylic resins.

REFERENCES:
patent: 4298737 (1981-11-01), Lai et al.

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