Modified resorcinol resins and applications thereof
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United States of America Patent
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Jul 11, 2006
Grant Date -
Aug 19, 2004
app pub date -
Feb 18, 2003
filing date -
Feb 18, 2003
priority date (Note) -
Expired
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Abstract
A modified resorcinol resin is prepared by reacting a phenolic compound (e.g., resorcinol) with an olefinically unsaturated compound (e.g., styrene) and two types of aldehyde: a formaldehyde and an alkyl aldehyde (e.g., butyraldehyde). The reaction is typically carried out in the presence of an acid catalyst. The resulting resin has a lower softening point and can be used as a methylene acceptor compound in a vulcanizable rubber composition.
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