Toyota Jidosha Kabushiki Kaisha

Nippon Soken, Inc.

Aisin Kako Kabushiki Kaisha

Japan Polychem Corporation

Grand Polymer Co., Ltd.

Osamu Kito

Takao Nomura

Takayuki Nagai

Hisayuki Iwai

Masatoshi Matsuda

Jun Yamada

Toshihiko Igashira

Yuji Fujita

Kenji Kanehara

Mikio Hashimoto

Kiyonori Sekiguchi

Ikunori Sakai

Nobuyuki Murate

Mitsuhiro Murayama

Nobuo Imatake

Kunio Iwanami

Atsunobu Fujikawa

Hiroshi Torii

Akira Kobayashi

Kenzo Shimogo

Haruzi Shibata

Haruhisa Susuki

Osamu Sano

This invention provides polypropylene resin compositions which have sharply improved balance of physical properties in comparison with the related polypropylene materials, are materials that can be used in both interior and exterior parts of automobiles, have excellent thin-wall moldability and can sharply reduce generation of flow marks. Particularly, it provides a polypropylene resin composition which comprises specified amounts of (A) a specified ethylene-propylene block copolymer, (B) a specified thermoplastic elastomer and (C) talc, wherein it has specified values of physical properties measured by ASTM and has a degree of b-axis orientation of 720 or more which is calculated from the ratio of differential peak intensities measured by wide-angle X-ray diffraction of the central area of an ASTM No. 1 dumbbell prepared by injection molding.

Polypropylene resin composition

A crystalline propyleiie block-copolymer composition exhibiting superior flowability upon molding for use in automobile parts, which composition comprises 41 to 71% by weight of a crystalline propylene block-copolymer composed of a propylene homopolymer portion (Fp) and an ethylene/propylene random copolymer portion (Fc) and having an ethylene content of 1 to 10% by weight and a melt flow rate (MFR) of 20 to 100 g/10 min.; 12 to 22% by weight of a first hydrogenated product of a block-copolymer having a relatively smaller stylene content; 2 to 12% by weight of a second hydrogenated product of a block-copolymer having a relatively greater stylene content; and 15 to 25% by weight of talc, wherein the propylene homopolymer portion (Fp) contains 20 to 50% by weight of a low molecular weight propylene homopolymer having an MFR of 400 to 1,000 g/10 min., the average MFR being 100 to 350 g/10 min. and the isotactic pentad fraction being at least 98%, and wherein the said (Fc) has an intrinsic viscosity of 7 dl/g or higher.

Crystalline propylene block-copolymer composition for use in automobile

A fuel supply system for a hydrogen gas engine, having a metal hydride tank in which pellets or powders of a metal hydride absorbing and storing alloy are stored. A heat exchange device is arranged in the tank in contact with the metal hydride therein. The heat exchange device is connected to a heating medium source, such as an engine water jacket, for supplying the heating medium to the heat exchange device, for separating hydrogen gas from the metal hydride. A fuel supply conduit is provided for connecting the metal hydride tank with the engine. A hydrogen gas flow control valve and a hydrogen gas flow meter are arranged in series in the conduit. A controller is provided for controlling the hydrogen gas flow control valve so that a desired amount of the hydrogen gas, as detected by the hydrogen gas flow meter, is obtained. A sub tank may be provided for storing an excess amount of hydrogen gas from the main tank, which is introduced into the engine via a sonic valve. An indicator for measuring an amount of hydrogen gas remaining, from the volume of the metal hydride, is also provided.

Fuel supply system for an internal combustion engine

Shock absorbing material

Growing community of inventors

Nisshin, Japan

Osamu Kito