Process for making a thermoplastic resin composition

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United States of America Patent

PATENT NO 5017652
SERIAL NO

07243715

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Abstract

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A process for making a thermoplastic resin composition which comprises melting and mixing 100 parts by weight of polyphenylene ether (A) and 0.01-5.0 parts by weight of at least one compound (B) which contains in its molecule both (a) carbon-carbon double bond or carbon-carbon triple bond and (b) carboxyl group, acid anhydride group, acid amide group, imide group, carboxylic acid ester group, epoxy group, amino group or hydroxyl group in the presence of 0.01% or more and less than 0.1% by weight of radical initiator based on the polyphenylene ether (A), said polyphenylene ether (A) being obtained by oxidation-polymerization of at least one phenol compound represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represent a hydrogen atom, a halogen atom, a hydrocarbon or a substituted hydrocarbon group, with a proviso that at least one of them is a hydrogen atom, and said polyphenylene ether (A) having a reduced viscosity .eta..sub.sp/c of 0.40-0.58 deciliter/gram.

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Patent Owner(s)

  • SUMITOMO CHEMICAL COMPANY, LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abe, Hiroomi Chiba, JP 34 557
Nishio, Taichi Chiba, JP 31 698
Sanada, Takashi Chiba, JP 94 1090
Suzuki, Yasurou Chiba, JP 12 244

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