Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1979-01-23
1981-08-18
Mars, Howard T.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
252402, 252403, 252404, 260 458NT, 260 4585A, 260 4585B, 260 4585P, 260 4585T, 260 459NC, 544197, 560 10, 560 16, 560 56, 560 59, 560 60, 560 85, 560193, 564156, 564160, C07C14940, C07C14941, C08K 513, C08K 537
Patent
active
042847907
ABSTRACT:
3-Hydroxylbenzyl compounds of formula, ##STR1## in which each of R.sub.1, R.sub.2 and R.sub.3 is a hydrocarbon group, e.g. alkyl, R.sub.4 is hydrogen or alkyl, or forms with R.sub.1 --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --, and Z is either an oxygen- or sulphur-containing group featuring at least one ester or amide moiety, or a disubstituted amino group, Z being bound to the rest of the molecule via the oxygen or sulphur atom, or nitrogen atom, respectively, are useful as antioxidants. Organic materials which are susceptible to the degradative effects of oxygen are treated with one or more of such compounds, e.g. by incorporation into the body of the organic material, in order to be stabilized against such effects.
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Hinsken Hans
Mayerhoefer Horst
Mueller Wolfgang
Borovian Joseph J.
Mars Howard T.
Sandoz Ltd.
Sharkin Gerald D.
Shippen Michael
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