Azodicarboxylic acid derivatives containing hindered amine...

C - Chemistry – Metallurgy – 07 – D

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C07D 211/94 (2006.01) C07D 211/36 (2006.01) C07D 211/46 (2006.01) C08F 8/30 (2006.01) C08K 5/3435 (2006.01) C08L 101/00 (2006.01)

Patent

CA 2133528

AZODICARBOXYLIC ACID DERIVATIVES CONTAINING HINDERED AMINE MOIETIES AS POLYMER STABILIZERS Abstract of the Disclosure New azo compounds of formula I Image I where R1 is hydrogen, oxyl, hydroxyl, alkyl, allyl, benzyl, alkoxy or acyl, X is -O- or -NR- where R is hydrogen or alkyl, and E is a group of formula IV Image ; IV or as described in claim 1, are useful for the stabilization of polymers, particularly unsaturated elastomers, by being grafted thereon.

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