US 8,795,844 B2 · Adhesive composition, bonding method, laminate and tire

Abstract

An object of the present invention is to provide an adhesive composition which can bond a film to unvulcanized rubber strongly, and is flexible and rarely undergoes cracking under low temperature conditions; and a method for bonding a film to unvulcanized rubber using the adhesive composition. In addition, an object of the present invention is to provide a laminate formed by the bonding method; and a tire produced using the laminate. The adhesive composition of the present invention contains a polymer component which has a glass transition temperature or both a glass transition temperature and a melting point of 40° C. or lower, has a main chain having a random structure, has epoxy groups, and has sulfur-crosslinkable sites. The bonding method of the present invention is characterized by using the adhesive composition.

Claims2

Dependent claims

A laminate formed by a method for bonding a film to an unvulcanized rubber, comprising:

disposing an adhesive composition between the film and the unvulcanized rubber and then vulcanizing the unvulcanized rubber to bond the film to the unvulcanized rubber, wherein
the adhesive composition comprises a polymer component, wherein the polymer component has a glass transition temperature of 40° C. or lower if it does not have a melting point, or both a glass transition temperature and a melting point of 40° C. or lower if it has a melting point, has a main chain having a random structure, has epoxy groups and has sulfur-crosslinkable sites, and further wherein
the polymer component comprises a high molecular weight polymer having a weight average molecular weight of 150000-2000000.

Dependencies are inferred from the claim text.

Adhesive composition, bonding method, laminate and tire

Life of this patent

Adhesive composition, bonding method, laminate and tire

Life of this patent

Abstract

Claims2