CROSSLINKED VINYL CHLORIDE RESIN FOAM AND PROCESS FOR MANUFACTURING THE SAME

PCT No. PCT/JP81/00128 Sec. 371 Date Jan. 25, 1982 Sec. 102(e) Date Jan. 25, 1982 PCT Filed Jun. 4, 1981 PCT Pub. No. WO81/03461 PCT Pub. Date Dec. 10, 1981.This invention provides a method of continuously manufacturing a cross-linked polyvinyl chloride resin foam sheet which has a low density, unif...

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Hauptverfasser:	MOGI, KENJI THE FURUKAWA ELECTRIC CO., LTD, NAGAI, HIROSHI THE FURUKAWA ELECTRIC CO., LTD, SHIINA, NAONORI THE FURUKAWA ELECTRIC CO., LTD, NOJIRI, AKIO THE FURUKAWA ELECTRIC CO., LTD, SASAJIMA, JUNNOSUKE THE FURUKAWA ELEC. CO., LTD
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Zusammenfassung:	PCT No. PCT/JP81/00128 Sec. 371 Date Jan. 25, 1982 Sec. 102(e) Date Jan. 25, 1982 PCT Filed Jun. 4, 1981 PCT Pub. No. WO81/03461 PCT Pub. Date Dec. 10, 1981.This invention provides a method of continuously manufacturing a cross-linked polyvinyl chloride resin foam sheet which has a low density, uniformly fine cell, excellent thermal moldability and high heat resistance and is neither deformed nor deteriorated even by long storage characterized by uniformly kneading the polyvinyl chloride resin with a blowing agent, stabilizer, plasticizer and cross-linking promoter without causing the blowing agent to decompose itself, thereby providing an unfoamed kneaded composition in which the polyvinyl chloride resin is gelled and forming said composition into a continuing sheet, irradiating said sheet with ionizing radiation to cross-link the resin; and thermally foaming the cross-linked sheet.