VISCOSITY MODIFIER FOR UNSATURATED POLYESTER RESIN, COMPOSITE MATERIAL AND MOLDING USING THE SAME, AND METHOD FOR MANUFACTURING THE VISCOSITY MODIFIER FOR UNSATURATED POLYESTER RESIN

PROBLEM TO BE SOLVED: To provide a viscosity modifier for an unsaturated polyester resin capable of favorably impregnating an unsaturated polyester resin composition with a fiber material while improving surface smoothness of a molding.SOLUTION: A styrene fumaric acid copolymer as the viscosity modi...

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Bibliographische Detailangaben
Hauptverfasser:	SHIBATA KEIJI, IMANARI KIKO, MATSUI AYAKO, OHIRA HIROKI
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 BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a viscosity modifier for an unsaturated polyester resin capable of favorably impregnating an unsaturated polyester resin composition with a fiber material while improving surface smoothness of a molding.SOLUTION: A styrene fumaric acid copolymer as the viscosity modifier for an unsaturated polyester resin is obtained by subcritical water decomposition of a material containing an unsaturated polyester resin cured product obtained by the reaction of an unsaturated polyester resin and a crosslinking agent comprising a styrene at a temperature of less than a thermal decomposition temperature of the unsaturated polyester resin cured product.