The present invention relates to a novel method for conferring to thermoplastic, thermostable polymers or elastomers, magnetic, electromagnetic, electrical, X-ray shielding or density properties that allow the detection of said polymers by means of specific equipment that exists in the prior art. The detection of the thermoplastic polymers, thermostable polymers or elastomers in turn facilitates their location, removal or separation. The method is based on the addition of specific iron and silicon alloys with or without surface treatment.

A resin composition containing heat-expandable microspheres including a thermoplastic resin shell and a thermally vaporizable blowing agent encapsulated therein and at least one base resin selected from rubbers, olefin resins and thermoplastic elastomers. The thermoplastic resin is a polymer of a polymerizable component containing N-substituted maleimide and a nitrile monomer containing methacrylonitrile. Also disclosed are molded articles manufactured by molding the resin composition.

A rubber foam composition containing a sulfur-modified chloroprene rubber and a chemical foaming agent, in which the sulfur-modified chloroprene rubber has a functional group A represented by specific General Formula (A) and positioned at a molecular terminal, in the sulfur-modified chloroprene rubber, a mass ratio B/A of a content of a functional group B represented by specific General Formula (B) and positioned at a molecular terminal with respect to a content of the functional group A is 12.00 or less, a total amount of the functional group A and the functional group B is 0.10 to 1.00% by mass, and a content of the chemical foaming agent is 3 to 16 parts by mass with respect to a total of 100 parts by mass of the sulfur-modified chloroprene rubber, a thiazole compound, and a dithiocarbamic acid-based compound.

A slidable rubber material that has an amino-modified interfacial layer that does not affect the compression set. Although the slidable rubber material includes a rubber component such as a butyl rubber or halogenated butyl rubber etc. having the low-compression set, which contains a vulcanization agent such as a nitrogen/sulfur compound or a vulcanizing auxiliary agent, the rubber part is coated with a silicone rubber layer. The slidable rubber material exhibits a slidability and resists the detachment or elution of fine particles from the coating layer. A rubber component and a vulcanization agent; an interfacial modification layer that coats the rubber part and an amino-modified silicone compound is incorporated with surface molecules of the rubber part; and a layer that coats the interfacial modification and contains solid fine particles, an addition-type or condensation-type silicone rubber in which the particles are dispersed, and a curing catalyst for silicone rubber.

A power transmission V-belt includes a tension member, an adhesion rubber layer in which at least part of the tension member is embedded, and a tension rubber layer and a compression rubber layer stacked via the adhesion rubber layer. A rubber hardness of the tension rubber layer is smaller than a rubber hardness of the compression rubber layer. In the adhesion rubber layer, a rubber hardness on a tension rubber layer side relative to the tension member is smaller than a rubber hardness on a compression rubber layer side.

The present invention relates to a method for producing a wiper blade element (10) for a wiper blade and/or a wiper blade having a wiper blade element (10), in particular for a windscreen wiper. In order to provide simple and economical wiper blade elements and wiper blades having excellent properties, in particular having high wiping quality, high abrasion resistance, a high degree of friction reduction and miming noise reduction and a long service life, in said method a particle layer (12) is applied to an elastomer substrate (11), the elastomer substrate (11) is vulcanised with the particle layer (12) deposited thereon, and, after vulcanisation, a friction-reducing material (13) is applied to the particle layer (12). The invention further relates to a wiper blade element and wiper blade produced in such a way.

The rubber-plastic composite foamed material of the present invention is made by mixing and foaming a plurality of components including 100 parts by weight of rubber, 5-70 parts by weight of hollow glass microspheres, 1-50 parts by weight of carbon black, 5-50 parts by weight of soften oil, 1-50 parts by weight of sulfur ointment, 0.5-10 parts by weight of antioxidant, 0.5-15 parts by weight of crosslinking agent and 2-12 parts by weight of foaming agent. By including hollow glass microspheres into the composition, the rubber-plastic composite foamed material of the present invention exhibits better compression resistance and heat retention.

A process is provided for making a silica masterbatch, that contains silica and solution-made rubber. The silica masterbatch has physical properties similar to those found in a comparable dry-mixed composition, but the silica masterbatch can be incorporated more easily and less expensively into tires and other rubber products than the dry-mixed composition. A process is also provided for making a masterbatch of silica, a solution-made rubber and an emulsion-made rubber.

A cured elastomer comprising: an elastomer at 100 parts per hundred rubber (phr); and an expandable thermoplastic microsphere at about 0.1 to about 10 phr. Such a cured elastomer can be used, optionally with additives, in an air barrier article that is selected from the group consisting of a tire innerliner, a pneumatic tire, a tire curing bladder, an air sleeves, a diaphragm, and a hose. With microspheres the compounded cured elastomer shows a reduction in specific gravity and a reduction in permeability. Both of these properties are highly desirable in tire design and performance.

Disclosed is a method of manufacturing a surface-modified polymer film, including forming a hydroxyl group (—OH) on the surface of a polymer film by subjecting the polymer film to light irradiation and surface treatment with a photoacid generator. The polymer film can be introduced with a hydroxyl group (—OH) group using a photoacid generator, thereby modifying the surface of the polymer film without damage to the polymer film. Also, an organic electronic device including the surface-modified polymer film can be improved in electrical characteristics and stability.