Title:
PRODUCTION METHOD FOR LIQUID CRYSTAL POLYESTER
Document Type and Number:
WIPO Patent Application WO/2012/141272
Kind Code:
A1
Abstract:
This production method for liquid crystal polyester produces a liquid crystal polyester by the melt polycondensation of a composition containing a dicarboxylic acid compound, a hydroxycarboxylic acid compound, and a dihydroxy compound, after which the obtained reaction product undergoes solid phase polycondensation to produce the liquid crystal polyester. The composition contains 2-30 mol% of a dicarboxylic acid compound represented by formula (1), and 40-80 mol% of p-hydroxy benzoic acid relative to the total of the dicarboxylic acid compound, the hydroxycarboxylic acid compound, and the dihydroxy compound. The polycondensation temperature of the melt polycondensation is 315℃ or lower, and the polycondensation temperature of the solid phase polycondensation is 315℃ or lower.
Inventors:
NISHIMURA KIICHIRO (JP)
SHI LU (JP)
MUROUCHI SATOSHI (JP)
SHI LU (JP)
MUROUCHI SATOSHI (JP)
Application Number:
PCT/JP2012/060075
Publication Date:
October 18, 2012
Filing Date:
April 12, 2012
Export Citation:
Assignee:
JX NIPPON OIL & ENERGY CORP (JP)
NISHIMURA KIICHIRO (JP)
SHI LU (JP)
MUROUCHI SATOSHI (JP)
NISHIMURA KIICHIRO (JP)
SHI LU (JP)
MUROUCHI SATOSHI (JP)
International Classes:
C08G63/80; C08G63/60
Foreign References:
| US4118372A | 1978-10-03 | |||
| JP2011032464A | 2011-02-17 | |||
| JP2004224913A | 2004-08-12 | |||
| JP2000507624A | 2000-06-20 | |||
| JP2006028287A | 2006-02-02 | |||
| JP2004263125A | 2004-09-24 | |||
| JP2001139674A | 2001-05-22 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)
Yoshiki Hasegawa (JP)
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Claims: