Formulations for cellular, foamed - polymer products based on polyvinyl chloride, improved cellular, foamed-polymer products based on polyvinyl chloride and a process for producing said improved cellular foamed-polymer products

Formulation for cellular, foamed-polymer product based on polyvinyl chloride, comprising: a polyvinyl chloride homopolymer having a K- value of from 60 to 85 and a pH value of the aqueous extract ranging of from 8 to 12; at least one isocyanate selected from isomers and homologues of diphenylmethane...

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Bibliographische Detailangaben
Hauptverfasser:	LAURI, LEONE, ANG, SAM SHEHYEE, BRESSAN, RAFFAELA, STIGSSON, JAN JERRY CHRISTIAN
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	Formulation for cellular, foamed-polymer product based on polyvinyl chloride, comprising: a polyvinyl chloride homopolymer having a K- value of from 60 to 85 and a pH value of the aqueous extract ranging of from 8 to 12; at least one isocyanate selected from isomers and homologues of diphenylmethane-4 , 4' -diisocyanate and modified diphenylmethane-4 , 4 ' -diisocyanate s and mixtures thereof ; at least one anhydride selected from the group of succinic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, methyl -tetrahydrophthalic anhydride, 4- methyl -hexahydrophthalic anhydride, cyclohexane-1, 2- dicarboxylic anhydride, methyl -endomethylene tetrahydrophthalic anhydride, dodecenyl succinic anhydride, trimellitic anhydride and mixtures thereof ; at least a surfactant; at least a foaming agent.