CATALYST SYSTEM AND PROCESS FOR PREPARING OF POLYESTER RESINS, FIBRE, FILAMENTS AND YARN USING SAID CATALYST SYSTEM

The present invention relates to a process for preparation of polyester resin in the presence of a novel catalyst system comprising an antimony compound and inorganic tin compound. The present invention also relates to a catalyst system for the preparation of polyester comprising an antimony compoun...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BHANGALE, Vikas, Kadu, PAWASHE, Nandkumar Gopal, JADIMATH, Shivamurthy Padadayya, AYODHYA, Srinivasacharya Ramacharya, LIMAYE, Chetan Vijay, PUSHAP, Sudan
Format:	Patent
Sprache:	eng ; fre ; ger
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:	The present invention relates to a process for preparation of polyester resin in the presence of a novel catalyst system comprising an antimony compound and inorganic tin compound. The present invention also relates to a catalyst system for the preparation of polyester comprising an antimony compound and inorganic tin compound which reduces the polymerization time at all stages of polyester synthesis and reduces the generation of degradation product. This invention further relates to polyester resin with improved L color having significant importance in end-use applications.