Title:
PRODUCTION OF AROMATIC POLYESTER
Document Type and Number:
Japanese Patent JPH05230193
Kind Code:
A
Abstract:
PURPOSE:To inexpensively obtain an amorphous aromatic polyester by subjecting isophthalic acid, etc., hydroquinone, etc., and 2,2-bis(4-hydroxyphenyl)propane, etc., in the presence of a catalyst to heat melt polycondensation. CONSTITUTION:(A) Isophthalic acid and/or its ester-forming derivative is blended with (B) hydroquinone and/or its ester-forming derivative and (C) 2,2-bis(4- hydroxyphenyl)propane and/or its ester-forming derivative in molar ratios of the component B/the component C of 50/50-70/30 and the components B+C/the component A of 95-120mol% and subjected to heat melt polycondensation in the presence of a catalyst such as antimony trioxide (0.1mol% based on the component A) at 340-400 deg.C to give the objective polymer having 0.3-1.0 intrinsic viscosity [in mixed solvent of phenol/tetrachloroethane (weight ratio of 60/40) at 35 deg.C] to give the objective polymer.
Inventors:
MATSUMURA SHUNICHI
ENOMORI MASATSUGU
INADA HIROO
ENOMORI MASATSUGU
INADA HIROO
Application Number:
JP3069292A
Publication Date:
September 07, 1993
Filing Date:
February 18, 1992
Export Citation:
Assignee:
TEIJIN LTD
International Classes:
C08G63/18; C08G63/181; C08G63/19; C08G63/191; C08G63/195; C08G63/78; (IPC1-7): C08G63/18; C08G63/191; C08G63/195
Attorney, Agent or Firm:
Maeda Junhiro
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