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

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 chlor ide, 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 l east one isocyanate selected from isomers and homologues of diphenylmetha...

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Bibliographische Detailangaben
Hauptverfasser: LAURI, LEONE, ANG, SAM SHEHYEE, BRESSAN, RAFFAELA, STIGSSON, JAN JERRY CHRISTIAN
Format: Patent
Sprache:eng ; fre
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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Zusammenfassung:Formulation for cellular, foamed-polymer product based on polyvinyl chlor ide, 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 l east one isocyanate selected from isomers and homologues of diphenylmethane- 4 , 4' -diisocyanate and modified diphenylmethane-4 , 4 ' -diisocyanate s an d mixtures thereof ; at least one anhydride selected from the group of succi nic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, me thyl -tetrahydrophthalic anhydride, 4- methyl -hexahydrophthalic anhydride, cyclohexane-1, 2- dicarboxylic anhydride, methyl -endomethylene tetrahydroph thalic anhydride, dodecenyl succinic anhydride, trimellitic anhydride and mi xtures thereof ; at least a surfactant; at least a foaming agent.