Bridgestone Corporation

Shinji Saitoh

Masato Yoshikawa

Kazuo Naito

Setsuo Akiyama

Yasuhiro Horiike

Taichi Kobayashi

Shingo Kato

Nobuko Kato

Shingo Ohno

Kanji Inoue

The invention relates to a laminate, which has at least a portion where a fluorine resin and a crosslinking elastic adhesive body such as of an ethylene-vinyl acetate copolymer or the like are directly bonded together and which is used as a window material of buildings or mainly used as an outdoor electric member and also to a method for making the laminate. More particularly, the invention provides a surface-treating method of a fluorine resin suited to impart bonding properties to a fluorine resin for the laminate, to a laminate having a good property of bonding between the fluorine resin and the crosslinking elastic adhesive body, and also to a method for making such a laminate as mentioned above.

Method for the surface treatment of a fluorine resin, method for making a laminate, and a laminate

A cleaning method for realizing uniform ashing of residues at a high efficiency by uniformly injecting neutral active species directly toward the surfaces of vulcanization residues left on a vulcanization mold is described. The method includes setting a ring-shaped cavity in face-to-face reaction with the inner surfaces of a ring-shaped vulcanization mold in a vacuum treating vessel, transmitting a microwave in the cavity, and emitting the microwave via a number of coupling slots formed in the outer side of the cavity toward the inner surfaces of the vulcanization mold whereupon a reaction gas is injected in the space of the treating vessel between the inner surfaces of the vulcanization mold and the cavity, so that a plasma including a major proportion of neutral active species generated from the reaction gas and the emitted microwave, and the elastomer residue is ashed by means of at least one gas selected from the plasma gas and a neutral active species-containing gas. A microwave generator useful for the method is also described.

Method for cleaning vulcanization mold

A composite rubber article is obtained by joining a rubber composition based on a brominated p-methylstyrene/isobutylene copolymer to a different material such as a plastic, inorganic and metallic material through a di-, tri- or tetra-alkoxysilane compound. The copolymer is firmly joined to the different material. The invention is applicable to the manufacture of composite rubber articles such as tires, high-pressure hoses, and pneumatic springs.

Composite rubber article and method of making

A rubber composition comprising a rubber component and a di- or trialkoxysilane compound is joined to a surface-modified resin to form a resin/rubber laminate. The laminate typically forms a refrigerant carrying hose wherein the resin defines an inside surface.

Resin/rubber laminate

A developing roller includes a magnet roller and a rotatable sleeve thereon. The sleeve is covered with a surface coating of a metal, alloy, metal nitride, metal oxide, metal carbide or metal sulfide by dry plating. The coating has a resistivity of up to 0.01 .OMEGA.cm. The sleeve is fully wear resistant at its surface. Formation of the coating by dry plating minimizes the variation of coating thickness to improve the dimensional precision of the sleeve surface. The developing roller and a developing apparatus equipped therewith can produce images of quality for a long time.

Magnet developing roller with dry plated sleeve

A gas barrier rubber laminate comprising a nylon film layer, an intermediate layer of a cured trialkoxysilane, and a rubber layer is fully flexible and pliable and has improved gas barrier properties to fluorocarbon gases. Such a gas barrier rubber laminate is prepared by modifying a surface of a nylon film with low-temperature plasma treatment or corona discharge treatment, applying an organosilane solution to the modified surface, curing the organosilane, laying a rubber layer on the cured organosilane, and curing the rubber layer thereto.

Growing community of inventors

Kodaira, Japan

Shinji Saitoh