COMPOSITION FOR OBTAINING FOAMED POLYVINYLCHLORIDE MATERIAL AND METHOD OF OBTAINING IT

A foamed polyvinylchloride (PVC) material is obtained by mixing 100 parts by weight of PVC with 0.5-6 parts by weight of sodium alkyl sulphonate, forming the obtained composition, and subsequent foaming by heating at 190 - 300 DEG C during 3 to 20 min. Forming is effected either under 0.5 - 400 MPa...

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Hauptverfasser:	TRASKIN, PETR MIKHAILOVICH, KHARITONOV, VALERY IOSIFOVICH, ZEGELMAN, VLADIMIR IZRAILEVICH, GORDEEV, GERMAN VALERIEVICH, POPOV, VLADIMIR EVGENIEVICH, KOVALEV, VYACHESLAV NIKOLAEVICH, MOROZOV, IGOR VIKTOROVICH, STRELKOVA, LJUBOV DMITRIEVNA, PEREVALOV, ANATOLY FEDOROVICH, EMELYANOV, VALERY INNOKENTIEVICH
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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 USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	A foamed polyvinylchloride (PVC) material is obtained by mixing 100 parts by weight of PVC with 0.5-6 parts by weight of sodium alkyl sulphonate, forming the obtained composition, and subsequent foaming by heating at 190 - 300 DEG C during 3 to 20 min. Forming is effected either under 0.5 - 400 MPa and at 20-170 DEG C with subsequent heating to 140 - 150 DEG C in a closed volume, or in free state, in the form of a layer of 2 - 16 mm thick. In the latter case the layer before forming may be subjected to compacting.