METHOD FOR PRODUCING WHOLLY AROMATIC POLYESTER RESIN WITH IMPROVED FLOWABILITY, AND WHOLLY AROMATIC POLYESTER PRODUCED THEREBY

WIPO Patent Application WO/2017/082710

A1

The present invention relates to a method for producing a wholly aromatic polyester resin with improved flowability, wherein the wholly aromatic polyester resin has high heat resistance and high flowability, which are necessary for manufacturing an engineering plastic suitable for electric and electronic components, and a wholly aromatic polyester produced thereby. A method for producing a wholly aromatic polyester resin, according to the present invention, can produce a wholly aromatic polyester resin with excellent high-temperature heat resistance as well as with excellent flowability in molding by controlling the usage content of a monomer for forming a refractive main chain, which comprises p-hydroxybenzoic acid from among monomer materials used in a step for producing the wholly aromatic polyester resin, at a certain molar ratio with respect to the usage content of a monomer for forming a rigid linear structure.

WO/2000/032673	A PROCESS FOR MANUFACTURING POLYESTER
WO/1990/007536	A POROUS, CRYSTALLIZED, AROMATIC POLYCARBONATE PREPOLYMER, A POROUS, CRYSTALLIZED AROMATIC POLYCARBONATE, AND PRODUCTION METHODS
WO/2004/018541	CONTINUOUS PROCESS FOR SOLID PHASE POLYMERISATION OF POLYESTERS

SONG BU-SEUP (KR)
JANG SUN-HWA (KR)
LEE JIN-KYU (KR)
LEE YOUN-EUNG (KR)

PCT/KR2016/013081

May 18, 2017

November 14, 2016

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SEYANG POLYMER CO LTD (KR)

C08G63/80; C08G61/10; C08J3/12

KR20120055387A	2012-05-31
KR20150060712A	2015-06-03
KR20140021586A	2014-02-20
KR100700371B1	2007-03-28
KR20100111094A	2010-10-14

NOH, Kyong-kyu (KR)

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