Osaka Soda Co., Ltd.

Nippon Oil Company

Nippon Petrochemicals Company, Limited

Seiji Kadomatsu

Kozo Misumi

Kazuo Matsuura

Junichi Watanabe

Shigeki Yokoyama

Mituji Miyoshi

Noboru Yamaoka

Shinji Nose

Takeshi Kamiya

Sei Nakazawa

Masanobu Miyaguchi

A curable chlorinated polyethylene and copolyethylene composition comprising

Curable chlorinated polyethylene and copolyethylene composition

Chlorinated linear ultra low density polyethylene containing 3-40% by weight of chlorine produced by chlorinating a linear ultra low density polyethylene having the properties (i)-(iv) cited below, said polyethylene being produced by copolymerizing ethylene and an .alpha.-olefin having 3-12 carbon atoms in the presence of a catalyst comprising a solid catalyst component containing at least magnesium and titanium and an organic aluminum compound.

Chlorinated linear ultra low density polyethylene

A chlorinated ethylene copolymer resin having a chlorine content of 5-50% by weight obtained by chlorinating an ethylene copolymer resin by the aqueous suspension method at a temperature of 100.degree. C. or higher in at least one chlorination stage, said copolymer resin being obtained by copolymerizing ethylene and as at least one comonomer 0.02-2.0 mol % of a nonconjugated diene using a polymerization catalyst comprising a solid catalytic component containing at least magnesium and titanium and an organic aluminum compound and having a maximum peak temperature according to the differential scanning calorimetry (DSC) of 100.degree. C. or higher.

Chlorinated ethylene copolymer resins

An after-chlorinated ethylene/butene-1 copolymer useful as a rubber material having especially good cold resistance characterized by having

After-chlorinated ethylene/butene-1 copolymer and process for its

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Toyonaka, Japan

Seiji Kadomatsu