The invention relates to a wire coat rubber composition for coating metal wires in a tire, the rubber composition comprising from 60 to 100 phr of natural rubber, from 0 to 40 phr of synthetic polyisoprene, from 40 to 70 phr of oxidized carbon black, up to 5 phr of a resin and up to 8 phr of oil. The present invention also relates to a tire comprising such a wire coat composition.

In accordance with the invention, a textile cord coat composition for a tire comprises from 70 to 90 phr cis 1,4-polyisoprene rubber, from 10 to 30 phr styrene butadiene rubber, from 25 to 45 phr carbon black, the latter comprising between 1 and 6 phr high surface area carbon black having a BET surface area of more than 700 m.sup.2/g. Moreover, the invention is directed to a textile reinforced ply and a tire comprising such a textile cord coat composition.

A tire with a radial carcass reinforcement, made up of at least one layer of metal reinforcing elements inserted between two skim layers of elastomer compound containing a reinforcing filler made up of at least carbon black. The tensile elastic modulus at 10% elongation of at least the skim layer closest to the internal cavity of at least the carcass reinforcement layer closest to the internal cavity is less than 8.5 MPa and at least the said skim layer closest to the internal cavity of at least the carcass reinforcement layer closest to the internal cavity has a macrodispersion value Z greater than 85.

The invention relates to the use of specific aminosilyl monomers in the manufacture of elastomeric polymers, especially rubber. The invention specifically relates to a process for preparing an elastomeric polymer, involving the copolymerization of the aminosilyl monomers, the elastomeric polymer thus obtained or obtainable, non-vulcanized and vulcanized polymer compositions comprising the elastomeric polymer, and articles comprising one or more components formed from the vulcanized polymer composition.

Body ply skim compound comprising a cross-linkable unsaturated chain polymer base, a filler material, a vulcanization system and a polyepihalohydrin rubber. The compound comprises epoxidized natural rubber as a cross-linkable unsaturated chain polymer base and a laminated structure material as a filler material.

A metal resin composite member for a tire, comprising a metal cord and a resin layer, the resin layer being formed of a resin mixture that includes a thermoplastic resin A, which has a hard segment and a soft segment, and a thermoplastic resin B, which is formed of the same structural units as the hard segment of thermoplastic A, and a ratio of the hard segment in the resin mixture being from 60% by mass to less than 75% by mass,

Provided is a tire which includes a circular tire frame formed from a resin material that contains a linear low-density polyethylene having a crystallization degree of from 110 J/g to 138 J.

A pneumatic tire is formed by winding a sheet member (A) and a sheet member (B) onto a molding drum and molding a cylindrical body. A laminate body (M) in which the sheet member (B) is layered in advance on the outer periphery of the sheet member (A) is wound onto a molding drum (10), the tack value of a material (a) constituting the sheet member (A) being smaller than the tack value of a material (b) constituting the sheet member (B), the length of the sheet member (A) being configured so that a starting end (As) of winding on the molding drum (10) and an ending end (Ae) of winding do not overlap, and the length of the sheet member (B) being configured so that the ending end (Be) of winding extends longer in the circumferential direction than the ending end (Ae) of winding of the sheet member (A).

Provided is a rubber composition fora tire. Thirty parts by mass or more of carbon black having a CTAB adsorption specific surface area of 100 m.sup.2/g or less is blended into 100 parts by mass of a conjugated diene-based copolymer that includes from 20 mass % to 60 mass % of a first conjugated diene-based copolymer containing an isoprene component and from 40 mass % to 80 mass % of a second conjugated diene-based copolymer containing syndiotactic-1,2-polybutadiene. The syndiotactic-1,2-polybutadiene has a content of a crystallized component of 90% or more, a melting point of 130 C. or lower, and a glass transition temperature Tg of 20 C. or higher. A content a crystallized component in the second conjugated diene-based copolymer is 30 mass % or less.

An object of the present disclosure is to provide a copolymer containing at least an acyclic non-conjugated olefin unit and a conjugated diene unit and capable of improving an elastic modulus of a rubber composition. Specifically, the present disclosure provides a copolymer containing at least an acyclic non-conjugated olefin unit and a conjugated diene unit, wherein the difference (T.sub.emT.sub.im) between an extrapolated melting end temperature (T.sub.em) as measured in accordance with JIS K7121 and an extrapolated melting initiation temperature (T.sub.im) as measured in accordance with JIS K7121 is not higher than 60 C.