Rubber composition and process for production thereof, and tire

摘要

A rubber composition that can be used in applications such as automotive tires and can improve the fuel efficiency performance and driving stability of automobiles and the like, a method for producing a rubber composition, and a tire using the same are provided.;A rubber composition comprising: (A) a conjugated diene rubber which is obtained by polymerizing a conjugated diene compound or polymerizing a conjugated diene compound and an aromatic vinyl compound and has a group having an active hydrogen and a group capable of chemically binding to a silica, (B) a silica, (C) a silane coupling agent (I) capable of reacting with a carbon-carbon double bond of the conjugated diene in the conjugated diene rubber, and (D) a silane coupling agent (II) capable of reacting with the group having an active hydrogen; a method for producing a rubber composition, which comprises mixing the above-mentioned composition; and a tire which is obtained by crosslinking and molding the rubber composition obtained by the method for production.

主权项

1. A rubber composition, comprising:
(A) a conjugated diene rubber which is obtained by polymerizing a conjugated diene compound or polymerizing a conjugated diene compound and an aromatic vinyl compound, the conjugated diene rubber comprising a group comprising an active hydrogen and a group capable of chemically binding to silica; (B) a silica; (C) a silane coupling agent (I) capable of reacting with a carbon-carbon double bond of the conjugated diene in the conjugated diene rubber; and (D) a silane coupling agent (II) capable of reacting with the group comprising an active hydrogen; wherein the group comprising an active hydrogen comprises at least one of a primary amino group, a secondary amino group, an imino group, a primary phosphino group, a secondary phosphino group, and a thiol group.