Latent light stabilizers

Details Latent light stabilizers Latent light stabilizers

1995-11-09

1997-01-28

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

430507, 430512, 430931, 544212, 544213, 544214, 544215, 544243, 544335, C08K 53492, C07D40300, C07D25102, C07D25100, C07D23402, G03C 146

Patent

active

055978541

ABSTRACT:
The invention relates to compounds of the formula I ##STR1## in which n is 1 or 2, A is CH or a nitrogen atom, and the other radicals R.sup.1 to R.sup.25 are as defined in claim 1.
The compounds of the formula I can advantageously be employed for stabilizing organic material against the harmful effect of light, oxygen and/or heat.

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Chem. Abst. 121590n af CH 484,695.
Chem. Abst. 79103d af CH 480, 091.
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D. Olson Journal of Applied Polymer Science vol. 28 pp. 1159-1165 (1983).
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