Method for producing rubber composition, and rubber composition

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United States of America Patent

PATENT NO 10087292
APP PUB NO 20170267818A1
SERIAL NO

15512164

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Abstract

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Provided is a method for producing a rubber composition that includes a rubber component (A) including natural rubber, at least one filler (B) selected from an inorganic filler and carbon black, and a monohydrazide compound (C) supported on a solid. The monohydrazide compound (C) is represented by general formula (I): R—CONHNH2, where R represents an alkyl group having from 1 to 30 carbon atoms, a cycloalkyl group having from 3 to 30 carbon atoms, or an aryl group. The method comprises compounding in an optional preliminary compounding stage and a plurality of compounding stages, and adding the monohydrazide compound (C) supported on the solid and kneading in the preliminary compounding stage and/or a first compounding stage. Also provided is a rubber composition produced with this method.

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Patent Owner(s)

  • BRIDGESTONE CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Saiki, Aya Kunitachi, JP 10 12
Uchiyama, Toshihiro Tokyo, JP 9 8

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