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US 9,068,060 B2Granted
Composite and method for producing the same, rubber composition, and pneumatic tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorAi Matsuura
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AssigneeSumitomo Rubber Industries, Ltd.
InventorAi Matsuura
Estimating the term…
The present invention aims to provide a composite including a rubber component in which surface-treated silica with a small particle size is uniformly dispersed, and a method for producing the composite. The present invention also aims to provide a rubber composition including the composite, the rubber composition capable of achieving both fuel efficiency and abrasion resistance while having excellent processability. The present invention also aims to provide a pneumatic tire including the rubber composition. The present invention relates to a composite formed from a compound latex prepared by mixing a natural rubber latex and a dispersion of surface-treated silica formed from a water glass, the surface-treated silica having an average particle size of not more than 100 nm and having a chemically-treated surface.
A composite, formed from a compound latex prepared by mixing a natural rubber latex with a dispersion of surface-treated silica formed from a water glass, the surface-treated silica having an average particle size of not larger than 100 nm and having a chemically-treated surface, wherein the surface of the silica is chemically treated with a compound containing a sulfur-containing functional group which is reactive with a double bond in a rubber of the natural rubber latex.
Dependencies are inferred from the claim text.