Hindered phenol hydrazones and compositions stabilized...

C - Chemistry – Metallurgy – 08 – K

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400/9131, 400/91

C08K 5/25 (2006.01) C08K 5/30 (2006.01) C08K 5/372 (2006.01)

Patent

CA 1121380

Case 3-10904/GC 805/+ Canada Hindered phenol hydrazones and compositions stabilized therewith Abstract of the Disclosure Hindered phenol hydrazones of the formula Image wherein R1 and R2 are alkyl of 1 to 8 carbons or R1 can also be hydrogen, n is 1 to 6, R' is hydrogen or alkyl, R3 is alkyl, phenyl, substituted phenyl, alkylenethioalkyl or alkylenethioether ester of a carboxylic acid or a group Image where T is a direct bond, alkylene, sulfur or oxygen interrupted alkylene or phenylene, said compounds being useful as diene rubber stabilizers.

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