Substituted hydroxylamine ester stabilizers

Details Substituted hydroxylamine ester stabilizers Substituted hydroxylamine ester stabilizers

C - Chemistry, Metallurgy

07

C

260/452, 400/709

C07C 239/22 (2006.01) C07C 323/63 (2006.01) C08K 5/32 (2006.01) C08K 5/372 (2006.01) C09K 15/24 (2006.01)

Patent

CA 1297882

A-16748/=/CGC 1309 Substituted Hydroxylamine Ester Stabilizers Abstract Substituted hydroxylamine ester stabilizers corresponding to the for- mula I Image (I) wherein n is an integer from 0 to 2, X is a direct bond, -S- or -CH2S-, R1 and R2 independently are hydrogen, alkyl of 1 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, allyl, aryl, aralkyl of 7 to 9 carbon atoms, said aralkyl substituted by alkyl of 1 to 36 carbon atoms, or R1 and R2 together with the nitrogen atom to which they are linked form a 5 - 7 membered heterocyclic ring, R3 and R4 independently are alkyl of 1 to 18 carbon atoms, cycloalkyl of 5 to 6 carbon atoms, phenyl, alkaryl of 7 to 18 carbon atoms or aralkyl of 7 to 9 carbon atoms, and R5 is hydrogen or the group Image , are effective in stabilizing organic materials against oxidative, thermal and actinic degradation.

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