Anhydrous metal salts of .alpha.,.beta.-ethylenically unsaturated carboxylic acids and related methods
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United States of America Patent
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Apr 13, 1993
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N/A
app pub date -
Apr 16, 1990
filing date -
Apr 16, 1990
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Expired
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Abstract
A reinforcing agent for vulcanizable rubber compounds comprises an anhydrous metal salt of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid having a crystalline structure consisting essentially of plates and fibers. Vulcanizable rubber compounds containing such reinforcing agents have improved physical properties over rubber compounds containing conventional metal carboxylic acid salts. Methods for the preparation of such anhydrous metal salts and methods for the reinforcement of vulcanizable rubber compounds therewith are also provided.
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