POLYVINYL ALCOHOL-BASED RESIN FOR MELT MOLDING AND METHOD FOR PRODUCING THE SAME, AND ITS APPLICATION

PROBLEM TO BE SOLVED: To obtain a polyvinyl alcohol-based resin for melt molding high in thermal stability in undergoing melt molding and good in long-run moldability. SOLUTION: The polyvinyl alcohol-based resin is obtained by saponifying a copolymer of a vinyl ester monomer and a compound of the ge...

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Hauptverfasser:	YUNO SHINJI, SAKAI NORITO, SHIBUYA MITSUO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a polyvinyl alcohol-based resin for melt molding high in thermal stability in undergoing melt molding and good in long-run moldability. SOLUTION: The polyvinyl alcohol-based resin is obtained by saponifying a copolymer of a vinyl ester monomer and a compound of the general formula (1) [wherein, R1, R2and R3are each H or an alkyl; R4is a single bond or (alkyl-bearing) 1-3C alkylene group; and R5and R6are each independently H or a group R7-CO- (wherein, R7is an alkyl)]. COPYRIGHT: (C)2006,JPO&NCIPI