Liquid antioxidants as stabilizers

Details Liquid antioxidants as stabilizers Liquid antioxidants as stabilizers

1998-05-19

2000-04-04

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

528271, 528287, 528288, 528289, 528290, 528293, 524291, 524315, 524366, 524499, 524539, 252399, 252401, 252404, 252405, 252406, 252407, C08K 509, C08K 1504

Patent

active

060462639

ABSTRACT:
Products are described which are obtainable by reacting compounds of formula I with compounds of formula IIa or/and IIb and IIIa or/and IIIb and additionally, where appropriate, IV ##STR1## wherein the general symbols are as defined in claim 1, the compound of formula I being, for example, methyl 3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionate, the compound of formula IIa being, for example, diethanolamine, the compound of formula IIIa being, for example, methyl oleate, and the compound of formula IV being, for example, sulfur. The cited products can be used as liquid antioxidants in organic materials.

REFERENCES:
patent: 3839278 (1974-10-01), Dexter et al.
patent: 4032562 (1977-06-01), Dexter et al.
patent: 4093587 (1978-06-01), Spinack
patent: 4132702 (1979-01-01), Schmidt et al.
patent: 5478875 (1995-12-01), Dubs et al.
patent: 5663128 (1997-09-01), Evans et al.
Research Disclosure 38420 (Apr. 1996, No. 384).

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