Stabilizing polyolefins with diacyl dihydrazides

Details Stabilizing polyolefins with diacyl dihydrazides Stabilizing polyolefins with diacyl dihydrazides

1975-06-13

1977-07-26

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C08K 525

Patent

active

040382478

ABSTRACT:
A process for stabilizing homo- or copolymeric polyolefins, especially polypropylene, with certain symmetrical or asymmetrical diacyl dihydrazides is disclosed, said diacyl dihydrazides possessing good color properties, and said process being particularly advantageous with respect to thermooxidative decomposition in the presence of transition metals.

REFERENCES:
patent: 3181971 (1965-05-01), Rayner
patent: 3484285 (1969-12-01), Hansen
patent: 3549572 (1970-12-01), Minagawa et al.
patent: 3734885 (1973-05-01), Muller et al.
patent: 3772245 (1973-11-01), Dexter
patent: 3894990 (1975-07-01), Muller et al.

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