METHOD FOR PRODUCING POLYESTER COPOLYMER

PROBLEM TO BE SOLVED: To provide a method for producing a polyester copolymer, preventing melt sticking of the polyester copolymer each other which sticking is caused after cutting of the polyester copolymer, and thereby continuously efficiently producing the polyester copolymer. SOLUTION: The metho...

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Bibliographische Detailangaben
Hauptverfasser:	SEKIGUCHI KOSUKE, KAWABATA HAYAHITO, KAMATA KATSUMA
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON 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:	PROBLEM TO BE SOLVED: To provide a method for producing a polyester copolymer, preventing melt sticking of the polyester copolymer each other which sticking is caused after cutting of the polyester copolymer, and thereby continuously efficiently producing the polyester copolymer. SOLUTION: The method for producing the polyester copolymer comprises cutting a polycondensate polyester copolymer into pellets, carrying with water flow and then crystallizing the surface of the copolymer. The crystallization is characterized by that the polyester copolymer comes in contact with warm water and the crystallization is continuous or uses a screw conveyor. COPYRIGHT: (C)2008,JPO&INPIT