Nichias Corporation

Nahoko Kitajima

Tomoya Shimizu

Tomokazu Watanabe

Hirotaka Natori

Hideaki Mori

Tetsuo Oohinata

Hideharu Aoyagi

Jun Oikawa

Jun Tachiki

You Nakajima

Mai Fujiwara

A material for gaskets is disclosed, wherein a metal surface coating layer, a primer layer and a rubber layer are formed, or a metal surface coating layer and a rubber layer are formed on at least a part of one side or both sides of a substrate formed of a metal plate sequentially from the metal plate side, and the metal surface coating layer comprises (A) one or more carbonates selected from the group consisting of Mg carbonate, Co carbonate, Zr carbonate, Mn carbonate, Ni carbonate, and Cu carbonate and (B) one or more selected from the group consisting of silica, alumina, zirconia, and titania.

Material for gasket

A coating agent for a rubber-coated cylinder head gasket contains a lubricant and a urethane resin. The lubricant is unsintered polytetrafluoroethylene resin particles having an average primary particle size of 1 &#x3bc;m or less. The amount of the unsintered polytetrafluoroethylene resin particles in a solid content is 30 to 80% by volume. The present invention provides a coating agent for a rubber-coated cylinder head gasket that can form a coat that is highly wear-resistant under high contact pressure and high temperature conditions and with which a rubber layer is less likely to stick to the seal face of the cylinder block or the cylinder head after the use under high contact pressure and high temperature conditions, and a cylinder head gasket obtained using the coating agent.

Coating agent for rubber-coated cylinder head gasket and cylinder head gasket

A method of producing a rubber molded article, involving utilizing a compound different from a compound that has been used as a crosslinking agent. The method of producing a rubber molded article includes a crosslinking step of crosslinking a rubber component by decomposing a compound to be used as a crosslinking agent for the rubber component, the compound including a structure represented by the following formula (I), in a rubber composition containing the rubber component and the compound, the rubber composition including a sulfur content of 2.0 wt % or less: &#x3b1;-&#x3b2;-&#x3b3; . . . (I) (in the formula (I), &#x3b1; represents a monovalent organic group, &#x3b2; represents &#x2014;N&#x2550;N&#x2014;, and &#x3b3; represents hydrogen or a monovalent organic group).

Method for producing rubber molding

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

Coating agent

A sheet including exfoliated clay minerals, having a density of 1.6 g/cmor less and a compression ratio of 20% or more.

Sheet composed of exfoliated clay mineral and method for producing same

A gasket including a sheet part that includes exfoliated clay minerals, wherein the exfoliated clay minerals are irregularly dispersed in the sheet part without being oriented.

Growing community of inventors

Tokyo, Japan

Nahoko Kitajima