MANUFACTURING METHOD OF MULTIFUNCTIONAL POLYESTER RESIN

PROBLEM TO BE SOLVED: To provide a method of manufacturing, without coloring, a multifunctional polyester resin having a higher branch content by conducting the ring-opening addition of a lactone compound to a multifunctional polyol. SOLUTION: The method of manufacturing a multifunctional polyester...

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Bibliographic Details
Main Authors OHATA MASATOSHI, NAKAJIMA KOJI, UMAGOE ATSUO
Format Patent
LanguageEnglish
Published 20.09.2007
Subjects
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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Summary:PROBLEM TO BE SOLVED: To provide a method of manufacturing, without coloring, a multifunctional polyester resin having a higher branch content by conducting the ring-opening addition of a lactone compound to a multifunctional polyol. SOLUTION: The method of manufacturing a multifunctional polyester resin by the ring-opening addition of the lactone compound into the multifunctional polyol, comprises the steps of (1) carrying out the ring-opening addition of the lactone compound a-1 into the multifunctional polyol, (2) adding a chain extending terminator, and further (3) carrying out ring-opening addition of the lactone compound a-2. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20060067334