Toagosei Chemical Industry, Co., Ltd.

Olympus Optical Company, Ltd.

Nippon Petrochemicals Company, Limited

Takashi Tsuda

Kishiro Azuma

Shiro Kojima

Hitoshi Watanabe

Hiroyuki Kato

Toshiyuki Kanno

Katsufumi Suga

Yasutaro Yasuda

Hiroaki Yoshitomi

Yoshihiro Yoshinaga

An ethylene graft copolymer is disclosed, which is obtained by radical polymerizing a monomer composition comprising (A) from 50 to 99.95% by weight of ethylene, (B) from 0.05 to 50% by weight of a macromonomer having a number average molecular weight of from 2,000 to 20,000 and having a (meth)acryloyl group only at one terminal of the molecular chain thereof, and (C) 0 to 49.95% by weight of other radical polymerizable monomer(s). The ethylene graft copolymer is a modifier for improving impact resistance of engineering plastics or a compatibilizer for engineering plastics to provide a molding resin composition excellent in impact resistance and oil resistance. The ethylene graft copolymer is also useful as a hot-melt adhesive or a pressure-sensitive adhesive.

Ethylene graft copolymer and molding resin composition containing the

A magnetic recording medium having a modified surface, consisting essentially of (a) a substrate, (b) a ferromagnetic metal thin film formed on one side of the substrate by a vacuum deposition method, an ion plating method, a sputtering method or a plating method and (c) a lubricating coating layer formed on the thin film or on the back of the substrate or on both of them. The recording medium has an improved running stability, durability and corrosion resistance.

Magnetic recording medium having a lubricating coating layer

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Aichi, Japan

Takashi Tsuda