POLYURETHANE-MODIFIED VINYL CHLORIDE POLYMER

PURPOSE:To produce the titled flexible polymer excellent in hydrolysis resistance and low-temperature resistance, by dissolving a specified thermoplastic polyurethane in a vinyl chloride monomer and then radical-polymerizing the latter monomer. CONSTITUTION:The titled polymer is prepared by dissolvi...

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Bibliographische Detailangaben
Hauptverfasser:	ITOU SHICHINOSUKE, ISHIHARA KUNITOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To produce the titled flexible polymer excellent in hydrolysis resistance and low-temperature resistance, by dissolving a specified thermoplastic polyurethane in a vinyl chloride monomer and then radical-polymerizing the latter monomer. CONSTITUTION:The titled polymer is prepared by dissolving a vinyl chloride monomer-soluble thermoplastic polyurethane resin obtained by reacting a polyester-diol (preferably, one prepared by reacting an aliphatic diol with a dicarboxylic acid or its lower alkyl diester) with an aliphatic or alicyclic diisocyanate (e.g., hexamethylene diisocyanate or cyclohexylmethane diisocyanate) in a vinyl chloride monomer and then radical-polymerizing the latter monomer. This polymer is excellent in hydrolysis resistance, low-temperature resistance, weather resistance, flexibility, etc., and is useful in the production of a variety of molded products such as food utensils, medical appliances, packaging materials, hoses, belts, and sheets.