Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1991-08-29
1993-02-09
Lipman, Bernard
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525219, 525384, 526313, C08F 814
Patent
active
051854074
ABSTRACT:
Novel stabilized compositions comprise organic material normally subject to oxidative degradation stabilized by the presence therein of a stabilizing quantity of a novel, at least partial ester of poly(vinylphenol) and a 3,5-dialkyl-4-hydroxybenzoic acid wherein at least one of the alkyl groups is a bulky alkyl.
REFERENCES:
patent: 4097464 (1978-06-01), Kline
patent: 4243581 (1981-01-01), Minagawa et al.
patent: 4970264 (1990-11-01), Lindert et al.
Lipman Bernard
Shell Oil Company
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