PRODUCTION OF HEAT-RESISTANT FILM

PURPOSE:To improve heat resistance simply, inexpensively and extremely, by subjecting acrylonitrile to radiation graft polymerization on a polyolefin film and heat-treating the film at <= a fixed temperature. CONSTITUTION:Acrylonitrile is subjected to radiation graft polymerization on a polyolefi...

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Bibliographic Details
Main Authors TOMOSUE TAKAO, YAMABE HIDETOSHI, MORI KOJI, MASUHARA KENICHI
Format Patent
LanguageEnglish
Published 02.12.1987
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Summary:PURPOSE:To improve heat resistance simply, inexpensively and extremely, by subjecting acrylonitrile to radiation graft polymerization on a polyolefin film and heat-treating the film at <= a fixed temperature. CONSTITUTION:Acrylonitrile is subjected to radiation graft polymerization on a polyolefin film and the film is heat-treated at <= the thermal decomposition temperature of the polyolefin. The polyolefin film is subjected to previous irradiation method wherein the polyolefin film is previously irradiated with >=3 Mrad radiation and immersed in acrylonitrile (<= boiling point) for >=1min, graft polymerization is carried out and then the polyolefin film is heat-treated at 180-240 deg.C.
Bibliography:Application Number: JP19860121946