Coupling agent for rubber/carbon black, and rubber composition containing same for use in tires
AssigneeShikoku Chemicals Corporation
InventorsYukiharu Shirakawa, Takeshi Masuda
Life of this patent
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Abstract
The present invention relates to a coupling agent for rubber/carbon black, containing a sulfide compound represented by the following chemical formula (I): (in the formula, each A represents O, S, NH or NR; each R represents a linear or branched alkyl or alkenyl group having 1 to 6 carbon atoms, or a cyclic alkyl or alkenyl group having 3 to 6 carbon atoms, and when A is NR, the plurality of R's on a condensed aromatic heterocyclic ring may be the same as or different from each other; n represents an integer from 1 to 6; and x represents an integer from 1 to 4).
Claims2
A coupling agent for rubber/carbon black, comprising a sulfide compound represented by the following chemical formula (I):
- (in the formula, each R1 represents a hydrogen atom, a linear or branched alkyl or alkenyl group having 1 to 6 carbon atoms, or a cyclic alkyl or alkenyl group having 3 to 6 carbon atoms;
- each A represents O, S, NH or NR2;
- each R2 represents a linear or branched alkyl or alkenyl group having 1 to 6 carbon atoms, or a cyclic alkyl or alkenyl group having 3 to 6 carbon atoms,;
- n represents an integer from 1 to 6;
- and x represents an integer from 1 to 4).
Dependencies are inferred from the claim text.