Polymeric diphenyldiamines
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United States of America Patent
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Sep 17, 1991
Grant Date -
N/A
app pub date -
Mar 8, 1990
filing date -
Mar 8, 1990
priority date (Note) -
Expired
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Abstract
This invention relates to a novel class of polymeric compositions which have molecular weights ranging from 300 to 3000 and are the reaction product of (a) an alkyl or cycloalkyl substituted diphenyldiamine and (b) a conjugated or nonconjugated diene. The polymeric diphenyldiamine compounds are particularly useful as an antiozonant in diene containing polymers.
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