Matsushita Electric Industrial Co., Ltd.

Sumitomo Chemical Company, Limited

Mitsubishi Gas Chemical Company, Inc.

Jun Yagi

Minoru Yoshinaka

Kouziro Matsuo

Yasushi Okamoto

Masashi Yamamoto

Hiroyuki Harada

Kenichi Ohkawa

Motoi Kitano

Hideyuki Yoshida

Toshiaki Izumida

Eizo Asakura

Naoto Obayashi

Yoshinori Kanno

Takashige Sato

Koujiro Matsuo

Sangoro Ichii

Method for manufacturing zinc oxide whiskers

Disclosed is a polypropylene resin composition which is superior in mechanical strength and affords molded articles having good appearance which comprises (A) a crystalline polypropylene, (B) a polypropylene modified with an unsaturated carboxylic acid or an acid anhydride thereof, and (C) a zinc oxide whiskers. When the composition additionally contains an inorganic filler such as glass fibers, molded articles further improved in appearance can be obtained. The zinc oxide whiskers preferably have a tetrapod type crystal structure.

Polypropylene resin composition

Disclosed is a rubber modified styrene resin composition which comprises 50-98% by weight of a rubber modified styrene resin and 50-2% by weight of zinc oxide whiskers. This composition can provide molded articles excellent in mechanical strength, surface state and vibration damping characteristics. Impact strength can be further improved by adding to the above composition a rubber-like material. The zinc oxide whiskers preferably have a tetrapod-formed crystal structure and furthermore, is preferably surface treated with a coupling agent such as silane compound.

Rubber modified styrene resin composition

A sliding resin composition comprising an aromatic polycarbonate resin composition (A) and zinc oxide whiskers (B) in an amount of from 1 to 40% by weight based on the total weight of the sliding resin composition. The sliding resin composition is suitably used in fields where a sliding property is required, such as a lens frame (lens tube) for cameras, gears and cams for OA machines and apparatus, etc.

Sliding resin composition

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Hirakata, Japan

Jun Yagi