Piperidine-triazine co-oligomers for use as stabilizers for orga

Details Piperidine-triazine co-oligomers for use as stabilizers for orga Piperidine-triazine co-oligomers for use as stabilizers for orga

1993-04-16

1994-06-28

Michl, Paul R.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544198, 544209, 544213, 544219, 540554, 540598, 524 97, 524100, C07D25100, C07D41300, C08K 534, C08K 535

Patent

active

053248341

ABSTRACT:
The present invention relates to novel co-oligomers containing recurring units of the formulae (Ia) and (Ib) ##STR1## which have a number average molecular weight of e.g. from 1,000 to 5,000 and a (Ia):(Ib) ratio of e.g. 1:1, and in which R.sub.1 and R.sub.5 are e.g. N-(2,2,6,6-tetramethyl-4-piperidyl)-n-butylamino, R.sub.2 is e.g. 2,2,6,6-tetramethyl-4-piperidyl, R.sub.3 is e.g. hexamethylene, R.sub.4 is e.g. hydrogen and X is e.g. a group ##STR2## These compounds are particularly suitable for stabilizing organic materials against light, heat and oxidation.

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patent: 4547548 (1985-10-01), Cantatore et al.
patent: 4696961 (1987-09-01), Cantatore et al.
Chem. Abst. 102, 7684j.
Chem. Abst. 97, 183468d (1982).

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