POLYOLEFIN COMPOSITION FOR HIGHLY EXPANDED FOAM

PURPOSE:To provide the titled polyolefin compsn. which gives a highly expanded molding having a homogeneous cell structure and excellent appearance, by blending an org. volatile blowing agent and a polyoxyethylene/polyoxypropylene block copolymer. CONSTITUTION:A polyoxyethylene/polyoxypropylene bloc...

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Bibliographic Details
Main Authors HOSHI KOURIKU, SAITOU KAZUAKI
Format Patent
LanguageEnglish
Published 05.12.1983
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 provide the titled polyolefin compsn. which gives a highly expanded molding having a homogeneous cell structure and excellent appearance, by blending an org. volatile blowing agent and a polyoxyethylene/polyoxypropylene block copolymer. CONSTITUTION:A polyoxyethylene/polyoxypropylene block copolymer of the formula (wherein l, m, n are each an integer of 1 or greater) is used. 5-80pts.wt. volatile blowing agent such as a mixture of dichlorotetrafluoroethane and methyl chloride, and 0.05-15pts.wt. said block copolymer are blended with 100pts.wt. polyolefin, pref. high-density polyethylene having an HMI of 30g/10min or below and a swell value of 30g/10cm or below.
Bibliography:Application Number: JP19820092372