Nichias Corporation

Hideharu Aoyagi

Tomokazu Watanabe

Jun Tachiki

Atsushi Omura

Kenichiro Ishikawa

Hideaki Mori

Nahoko Kitajima

Jun Oikawa

Hirotaka Natori

Takumi Arisawa

Mai Fujiwara

Kenichirou Ishikawa

Ishikawa Kenichiro

A gasket material to be mounted in a vehicle engine, wherein, on one or both sides of a steel plate, a rubber layer is formed via a coating film including a reaction product of an acid component and a metal or a reaction product of an acid component and a metal compound, and at least one selected from zirconia, alumina and titania.

Material for gasket

A coating agent includes a polyurethane and a hydrocarbon-based synthetic wax.

Coating agent

A coating agent contains a particulate fluorocarbon polymer, an acid-modified polyolefin, a urethane resin, and a curing agent. The present invention provides a coating agent capable of forming a coat with high wear resistance under high contact pressure and high temperature conditions, a surface-coated elastic body obtained using the same, and a surface-coated rubber metal laminate.

Coating agent, surface-coated elastic body, and surface-coated rubber metal laminate

A material for a gasket, wherein a chromate or non-chromate film, a phenol resin primer layer and a polyol-crosslinkable fluororubber layer are formed on one or both surfaces of a steel plate in this sequence from the side of the steel plate; the polyol-crosslinkable fluororubber layer is a rubber layer obtained by applying a fluororubber composition that comprises fluororubber, a polyol-based cross-linking agent, an amine-based cross-linking accelerator and silica to the phenol resin primer layer, followed by heating; and the amine-based cross-linking accelerator is a tertiary amine or a salt of a tertiary amine obtained by a reaction between a tertiary amine and an acid. Provided is a material for a gasket mounted in an engine of a vehicle that, in the actual use environment, does not suffer rubber peeling in a part where it contacts water or an anti-freezing solution even if the gasket is used in a state where it contacts different types of metals and, in a sealing part around a combustion room, abrasion or ply separation of a rubber layer hardly occurs.

A gasket material including a steel plate and a foamed rubber layer formed on one or both sides of the steel plate, in which the foamed rubber layer is obtained from a rubber composition containing at least one of NBR, H-NBR or a functional group-modified NBR, as a rubber compound; and a crosslinking agent, and in which the foamed rubber layer has a quinoid crosslinking structure.

Growing community of inventors

Tokyo, Japan

Hideharu Aoyagi