Selected 3,9-di(2,2,6,6-tetramethyl-4-piperidyl)-2,4,8,10-tetrao

Details Selected 3,9-di(2,2,6,6-tetramethyl-4-piperidyl)-2,4,8,10-tetrao Selected 3,9-di(2,2,6,6-tetramethyl-4-piperidyl)-2,4,8,10-tetrao

1987-01-29

1989-01-17

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546 22, 524 99, 524103, 524106, 524107, C07F 965

Patent

active

047988223

ABSTRACT:
Compounds of the formula I or II, ##STR1## wherein m is 1 or 2, A is branched or unbranched 1,2- or 1,3-alkylene, or o-phenylene, E is a group III or IIIa, R is hydrogen or methyl, R.sup.1 and R.sup.3 are hydrogen, alkyl, alkenyl, aralkyl, alkanoyl, alkenoyl, benzoyl or cyanomethyl, R.sup.2 is a radical of valency m and R.sup.4 is a monovalent radical, are effective processing stabilizers for polymers, in particular for polyolefins, and additionally have a stabilizing action against damage by light.

REFERENCES:
patent: 4579682 (1986-04-01), Rasberger
patent: 4652648 (1987-03-01), Rasberger
Chemical Abstracts, vol. 104, No. 5, Abst. No. 104:34969d Feb. 3, 1986.

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