Dithiodialkanoic acid esters and polymers stabilized therewith
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United States of America Patent
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Aug 20, 1991
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N/A
app pub date -
Feb 19, 1988
filing date -
Nov 14, 1985
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Abstract
Multifunctional dithiodialkanoic acid esters useful in the stabilization of organic materials normally susceptible to oxidative degradation are prepared by contacting a selected dithiodialkanoic acid chloride with a selected 4-(3-hydroxypropyl)(mono- or di-alkyl) phenol under ester-forming reaction conditions. In a preferred embodiment, the ester is bis-3-(3',5'-di-t-butyl-4'-hydroxyphenyl)propyl dithiodipropionate.
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