Substituted piperazinone light stabilizers

Details Substituted piperazinone light stabilizers Substituted piperazinone light stabilizers

1984-03-12

1987-03-17

Hollrah, Glennon H.

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

524100, 524102, 544231, 544384, C07D24104

Patent

active

046508708

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.

REFERENCES:
patent: 4046737 (1977-09-01), Holt et al.
patent: 4066615 (1978-01-01), Murayama et al.
patent: 4190571 (1980-02-01), Lai et al.
patent: 4292240 (1981-09-01), Lai et al.
patent: 4298737 (1981-11-01), Lai et al.
H. J. Heller et al, Pure and Applied Chem., 36, 141 (1973).

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