This invention relates to improved adhesion compositions and textile materials and articles treated therewith. The improved adhesion composition comprises a non-crosslinked resorcinol-formaldehyde and/or resorcinol-furfural condensate (or a phenol-formaldehyde condensate that is soluble in water), a rubber latex, and an aldehyde component such as 2-furfuraldehyde. The composition may be applied to textile substrates and used for improving the adhesion between the treated textile substrates and rubber materials. End-use articles that contain the treated textile-rubber composite include, without limitation, automobile tires, belts, and hoses as well as printing blankets.

Provide is a pneumatic tire that is excellent in air retention properties and adhesion at the interface between the innerliner and the insulation, particularly in the joint portion. Included is a pneumatic tire including: a carcass; an insulation adjacent to the radially inner side of the carcass; and an innerliner adjacent to the radially inner side of the insulation, the innerliner including an innerliner rubber composition, the innerliner rubber composition containing a polymer component including, based on 100% by mass thereof, 80 to 100% by mass of a butyl-based rubber and containing, per 100 parts by mass of the polymer component, 40 to 70 parts by mass of carbon black, 0.5 to 5.0 parts by mass of zinc oxide, and 0.2 to 5.0 parts by mass of sulfur, the insulation including an insulation rubber composition, the insulation rubber composition containing a polymer component including, based on 100% by mass thereof, 20 to 90% by mass of a butyl-based rubber and 10 to 80% by mass of an isoprene-based rubber and containing, per 100 parts by mass of the polymer component, 40 to 80 parts by mass of carbon black and 0.2 to 5.0 parts by mass of sulfur, the innerliner and insulation rubber compositions having butyl-based rubber contents based on 100% by mass of the polymer component that satisfy the following relationship: (Butyl-based rubber content of innerliner rubber composition) (Butyl-based rubber content of insulation rubber composition).

A shear band that may be used e.g., in a non-pneumatic tire is provided. The shear band uses interlaced reinforcing elements positioned within a shear layer of elastomeric material. A variety of configurations may be used to create the interlaced positioning of the reinforcing elements including e.g., a horizontal diamond or vertical diamond configuration. The shear layer formed from a rubber composition having a very low hysteresis.

In a first aspect of the present invention, a rubber composition is provided, comprising at least one rubber, at least one filler, at least one thermoplastic polymer, wherein the thermoplastic polymer is a poly alkylacrylate, and wherein the alkylacrylate comprises a polycyclic substituent at its single bonded oxygen atom. In another aspect of the invention, an article of manufacture such as a tire, a power transmission belt, a hose, a track, an air sleeve, and a conveyor belt is provided which comprises the rubber composition in accordance with the first aspect.

A belt layer includes at least one belt ply. The belt ply has a single-wire cord having a short diameter SD and a long diameter LD with a ratio SD/LD between the short diameter SD and the long diameter LD being less than 1.00, and a topping rubber covering the single-wire cord. The single-wire cord is disposed so that a direction of the short diameter SD is oriented to a thickness direction of the belt ply. The topping rubber has a complex elastic modulus (E*) of from 7 MPa to 20 MPa under a condition of temperature of 70 C., initial strain of 10%, an amplitude of dynamic strain of 1.0%, and a frequency of 10 Hz.

Disclosed herein are methods for improving the rolling resistance of a tire rubber composition by providing a rubber composition including a rubber component which includes a majority by weight of guayule rubber where the guayule rubber includes a bagasse component, and a filler component where the filler component is free of silica, and including at least one silane in the rubber composition, where the at least one silane is selected from the group consisting of mercaptosilanes, blocked mercaptosilanes, and alkoxysilanes. Also disclosed is a tire rubber composition which comprises (a) 100 parts of a rubber component including a majority by weight of guayule rubber where the guayule rubber includes a bagasse component, (b) a filler component, where the filler component is free of silica, and (c) at least one silane selected from the group consisting of mercaptosilanes, blocked mercaptosilanes, and alkoxysilanes.

The environmental footprint of a tire for a construction plant vehicle is improved. To do so, the elastomer compounds derived from non-fossil resources represent a mass content greater than or equal to 65% of the total mass of the compounds of the tire, at least 75% of the total mass of the compounds of the tire is made up of elastomer compounds each of which has a viscoelastic loss, measured in terms of tan(), less than or equal to 0.065, and an electrical resistivity greater than or equal to 1E+10 .Math.cm.

The present invention relates to a rubber composition comprising rubber, a first filler comprising a carbon-based inorganic compound, wherein the carbon-based inorganic compound comprises interconnected crystalline carbon nanofilaments and a second filler comprising silica. Said rubber composition can be used for coating wires or cords which are used for reinforcing rubber products such as tires. It can be used in tires such as in carcass plies, belt plies, ply strips and overlay plies. The present invention further relates to a pneumatic tire comprising said rubber composition.

Provided is a pneumatic tire in which, by improving adhesion between a rubber and fibers for a reinforcing layer that is arranged in such a manner to extend from a tire radial-direction inner side of a belt layer in an end region of a tread portion toward an inner side of a tire radial direction along a carcass ply, not only the durability is further improved as compared to conventional tires but also the rolling resistance is reduced. The pneumatic tire includes: at least one carcass ply (2); and at least one belt layer (3) arranged on a tire radial-direction outer side of the carcass ply (2) in a crown portion, in which pneumatic tire a reinforcing layer (4) extending from the tire radial-direction inner side of the belt layer in the end region of the tread portion toward the inner side of the tire radial direction along the carcass ply is arranged, and core-sheath type composite fibers (C), whose core portion is composed of a high-melting-point resin (A) having a melting point of 150 C. or higher and sheath portion is composed of a resin material (B) that contains an olefin-based polymer (D) having a melting point of not higher than a tire vulcanization temperature, are embedded in the reinforcing layer.

According to the process for preparing a vulcanized rubber composition of the invention comprising (a) a step of preparing a master batch comprising a modified conjugated diene polymer and silica, (b) a step of preparing a master batch comprising an isoprene rubber and silica, (c) a step of kneading the master batch obtained in (a) and the master batch obtained in (b), and (d) a step of vulcanizing a kneaded product obtained in (c), wherein the obtained vulcanized rubber composition comprises a phase A comprising a modified conjugated diene polymer and a phase B comprising an isoprene rubber, which are incompatible with each other, an abundance ratio of silica in the phase A satisfies 0.50.9 (Relation 1), and a proportion of the modified conjugated diene polymer satisfies 0.40.8 (Relation 2) it is possible to improve performance on ice and abrasion resistance and to provide a vulcanized rubber composition having excellent performance on ice and abrasion resistance, and a studless tire with a tread made using the same.