Nok Corporation

Dainippon Ink and Chemicals, Incorporated

Kazuhisa Senda

Yoshifumi Kojima

Osamu Ando

Kenichi Fujimoto

Atsushi Koga

Tomohiro Inoue

Yoshihiro Kurano

Yuichi Kuroki

Shigeo Wakamatsu

Osamu Nagai

Yasunori Sasaki

Nobuyuki Oka

Masayuki Kishimoto

Hiroshi Taguchi

Kaoru Mori

Tasashi Fujimoto

Tadashi Fujimoto

Nobuyuki Shintaku

Kazunari Fukasawa

Shunji Ueda

In order to provide a gasket which has a good handling property as a gasket used for a fuel battery or a gasket for an HDD, can be easily integrated with the other end mounting member even in the case that the other end mounting member such as a separator or the like is a material having low strength or a thin plate, and has good mounting workability, a gasket is having a sheet-shaped gasket mounting member provided with a sticking function on one face, and a gasket main body made of a rubber-type elastic member integrated with the sheet-shaped gasket mounting member, and the gasket is mounted to the other end mounting member on the basis of the sticking function of the sheet-shaped gasket mounting member.

Gasket for electrolyte membrane

In order to provide a gasket which has a good handling property as a gasket used for a fuel battery or a gasket for an hard disc drive, can be easily integrated with the other end mounting member even in the case that the other end mounting member such as a separator or the like is a material having low strength or a thin plate, and has good mounting workability, a gasket is having a sheet-shaped gasket mounting member provided with a sticking function on one face, and a gasket main body made of a rubber-type elastic member integrated with the sheet-shaped gasket mounting member, and the gasket is mounted to the other end mounting member on the basis of the sticking function of the sheet-shaped gasket mounting member.

Gasket with sheet-shaped member and a gasket mainbody mounted to a mounting member

A high-performance gasket () capable of coping with a reduction in size and developing a sealing property without producing a squeeze-out at the time of attachment and using a material having a hardness range of 30 to 80 degrees (JIS durometer type A), wherein the requirement of W/W&#x3c;0.9 is satisfied where the bonding width of a base part () is (W) and the width thereof at a position half a height from the bonding part of the base part () to the tip end of a main bead part () is (W), the requirement of 1.15&#x3c;H/W&#x3c;1.80 is satisfied where the height from the bonding part of the base part () to the tip end of the main bead part () is (H), the requirement of L/W&#x3e;=3 is satisfied where the length of the non-bonded portion of the base part () around the cross-section thereof excluding the bonded portion is (L), and the compressibility of the gasket when compressed is 13.5% or higher.

Gasket

A hard disc drive cover-integrated gasket, which comprises a metallic cover and a packing material integrated with the metallic cover, the packing material being a molding material from a mixture comprising 100 parts by weight of EPDM or a blend of EPDM and polystyrene type thermoplastic elastomer, 10&#x2013;100 parts by weight of polypropylene type resin, 20&#x2013;130 parts by weight of a plasticizer and 0.1&#x2013;10 parts by weight of a cross-linking agent is easy to fabricate and has distinguished characteristics as low outgassing characteristics, low hardness, good sealability at elevated temperatures, etc.

Hard disc drive cover-integrated gasket

A film-integrated gasket comprising a resin film and an adhesive rubber layer directly molded on the resin film. The adhesive rubber layer is molded from addition reaction type silicone rubber. The adhesive rubber layer can have a reduced thickness and can prevent positional alignment failure, making it suitable for a thin seal that can be used in a fuel cell, a secondary battery, a condenser, etc. without contamination of electrolytic solution, catalyst, etc. used in the cells.

A film-integrated gasket comprising a resin film and an adhesive rubber layer directly molded on the resin film, where the adhesive rubber layer is molded in an inverted T-type stepped wall cross-section from addition reaction type silicone rubber, can satisfy required reduction in thickness, prevention of positional alignment failure, etc. for a thin seal and thus can be suitably used in a fuel cell, a secondary battery, a condenser, etc. without contamination of electrolytic solution, catalyst, etc. used in the cells.

A gasket is provided on a porous sheet in one body. The gasket is thin and has an excellent sealability, and processability when the gasket is built in layer-built fuel cells. The gasket is made of liquid rubber and has a hardness not more than 60 (JIS A). Liquid perfluoro rubber and liquid silicone rubber is preferably used for the gasket. And gasket can be made by injection molding.

Method of making a gasket for layer-built fuel cells

Gasket for layer-built fuel cells and method for making the same

A resin composition for automobile constant velocity joint boots having a surface hardness (Shore-D) of 34.about.44, and obtainable by melt mixing as essential components: 100 parts by weight of polyester elastomer (A); and, for every 100 parts by weight of said polyester elastomer (A), 0.05.about.7.0 parts by weight of organic polyisocyanate compound (B); and 0.1.about.5.0 parts by weight of silicone compound (C). A molded automobile constant velocity joint boot molded therefrom is superior in abrasion resistance, and flexibility.

Growing community of inventors

Fujisawa, Japan

Kazuhisa Senda