Phenolic-hydrazide compounds and polyolefin compositions stabili

Details Phenolic-hydrazide compounds and polyolefin compositions stabili Phenolic-hydrazide compounds and polyolefin compositions stabili

1993-09-23

1994-06-07

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

525296, 427259, 427264, C07C 6976

Patent

active

053191277

ABSTRACT:
Disclosed are a class of phenolic-hydrazide compounds of diverse structure which are useful as stabilizers for polyolefins. The phenolic-hydrazide compounds inhibit oxidative degradation of polyolefins which is attributable to heat and/or ultraviolet light and is promoted or accelerated by metals, e.g., copper, in contact with the polyolefin.

REFERENCES:
patent: 3772245 (1973-11-01), Dexter
patent: 4093774 (1978-06-01), Hartless et al.
patent: 4147689 (1979-04-01), Thompson et al.
Chemical Abstracts 111:196063a, an abstract of Japanese Kokai 01 38, 453 [89 38,453] published Feb. 8, 1989.
Chemical Abstracts 114:83269r, an abstract of Japanese Kokai 02,214,751 [90,214,751] published Aug. 27, 1990.
Chemical Abstracts 111:175288n, an abstract of Polym. Degrad. Stab. 1989, 25(1), 19-29.

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