MASTERBATCH FOR EXPANSION MOLDING

PURPOSE:To obtain the titled masterbatch which can be easily produced and can give a molding excellent in mechanical properties because of easy and uniform dispersion of a blowing agent in a resin, by mixing a PS-polybutadiene thermoplastic elastomer with a low-MW PS and a blowing agent. CONSTITUTIO...

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Bibliographic Details
Main Authors SANO TOSHIMICHI, TANI TOSHIO
Format Patent
LanguageEnglish
Published 31.03.1987
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Summary:PURPOSE:To obtain the titled masterbatch which can be easily produced and can give a molding excellent in mechanical properties because of easy and uniform dispersion of a blowing agent in a resin, by mixing a PS-polybutadiene thermoplastic elastomer with a low-MW PS and a blowing agent. CONSTITUTION:30-70wt% PS-polybutadiene thermoplastic elastomer such as a thermoplastic elastomer (A) comprising PS blocks and polybutadiene blocks is mixed with 5-40wt% low-MW PS (B) of a MW of several hundreds to several tens of thousands and 5-40wt% inorganic blowing agent (C) (e.g., sodium bicarbonate/citric acid blowing agent) and/or organic blowing agent (e.g., azodicarbonamide).
Bibliography:Application Number: JP19850210294