Mitsubishi Petrochemical Company Limited

Toyota Jidosha Kabushiki Kaisha

Shinichi Yamauchi

Yusuke Arashiro

Michiharu Kihira

Hiroshi Nakano

Masuzo Yokoyama

Mitsutoshi Aritomi

Toru Tsukahara

Hiroshi Omori

Hiromi Nishimura

Takeyoshi Nishio

Hironari Sano

Koji Nishida

Takayuki Inoue

Haruo Ohmura

Junji Mayumi

Kenyu Ohno

Hiroshi Ohmori

A copolymer of an .alpha.-olefin with an aromatic diolefin such as divinylbenzene produced by means of Ziegler-Natta polymerization and having a vinylphenyl moiety is subjected to polymerization with an ethylenically unsaturated monomer by means of anion polymerization or free radical polymerization, whereby a graft-modified .alpha.-olefin copolymer is obtained.

Process for producing graft-modified alpha-olefin copolymer

A hydroxy-substituted poly(phenylene ether) resin can be produced by copolymerizing from 1.5 to 8 mol % of a phenol compound selected from those represented by the following formulae (a), (b), (c), (d), and (e): ##STR1## and from 98.5 to 92 mol % of a phenol compound of the following formula (f): ##STR2## The hydroxy-substituted poly(phenylene ether) resin shows excellent compatibility with a polyamide, a polycarbonate, a poly(butylene terephthalate), a poly(phenylene sulfide), and is useful as a copatibilizer or a modified resin for engineering plastics.

Process for producing a hydroxy-substituted poly(phenylene ether) resin

A thermoplastic resin composition comprising (A) from about 10 to about 90% by weight of a hydroxyalkylated polyphenylene ether represented by formula (I): ##STR1## wherein A represents a residue of a polyphenylene ether from which a hydroxyl group is removed; and n represents an integer of from 1 to 10,

Thermoplastic polyphenylene ether resin composition

Disclosed is a process for preparing a polyhydroxyphenylene ether resin which comprises copolymerizing a phenol-substituted compound having hydroxyl group as a substituent, represented by the formula (I): ##STR1## wherein m and n each represents an integer satisfying the formulae 1.ltoreq.m and m+n.ltoreq.4; J represents {(HO).sub.a --R.sup.1 --S}.sub.b --R.sup.2 -- where a and b each represents an integer of 1 to 6; and R.sup.1 and R.sup.2 each represents unsubstituted or halogen-substituted alkylene, alkenylene or arylene, or alkylene; K represents halogen, primary or secondary alkyl, alkenyl, phenyl, aminoalkyl, haloalkyl, hydrocarbonoxy or halohydrocarbonoxy; with at least one phenol-substituted compound represented by the formula (II): ##STR2## wherein Qs each represents hydrogen, halogen, primary or secondary alkyl, alkenyl, aromatic, aminoalkyl, haloalkyl, hydrocarbonoxy or halohydrocarbonoxy, and a resin composition containing the polyhydroxyphenylene ether resin prepared by the above method.

Polyhydroxyphenylene ether resin and process for preparing the same

There is disclosed a resin composition comprising:

Resin composition

Process for producing graft-modified .alpha.-olefin copolymer

Disclosed is a polymer alloy consisting essentially of a composition of a polyphenylene ether, a crystalline propylene resin, and an alkenyl aromatic monomer modified propylene-dialkenylbenzene compound copolymer. The composition excels in heat resistance and resistance to oils.

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Yokkaichi, Japan

Shinichi Yamauchi