Title:
WHOLLY AROMATIC LIQUID CRYSTAL POLYESTER RESIN, MOLDED ARTICLE, AND ELECTRICAL/ELECTRONIC COMPONENT
Document Type and Number:
WIPO Patent Application WO/2018/008612
Kind Code:
A1
Abstract:
[Problem] To provide a wholly aromatic liquid crystal polyester resin that exhibits excellent heat resistance while having an extremely low dielectric loss tangent.
[Solution] This wholly aromatic liquid crystal polyester resin is characterized by containing constituent units (I) derived from 6-hydroxy-2-naphthoic acid, constituent units (II) derived from an aromatic diol compound, and constituent units (III) derived from an aromatic dicarboxylic acid compound, with the constituent units (III) containing constituent units (IIIA) derived from terephthalic acid and further containing at least one type selected from among constituent units (IIIB) derived from 2,6-naphthalenedicarboxylic acid and constituent units (IIIC) derived from isophthalic acid, and with the compositional ratios of the constituent units satisfying the following conditions:
40 mol.% ≤ constituent unit (I) ≤ 80 mol.%
10 mol.% ≤ constituent unit (II) ≤ 30 mol.%
3 mol.% ≤ constituent unit (IIIA) ≤ 28 mol.%
0 mol.% ≤ constituent unit (IIIB) ≤ 9 mol.%
0 mol.% ≤ constituent unit (IIIC) < 5 mol.%
(However, it is not possible for the quantity of both constituent units (IIIB) and constituent units (IIIC) to be 0 mol.%).
Inventors:
WASHINO GOSUKE (JP)
Application Number:
PCT/JP2017/024405
Publication Date:
January 11, 2018
Filing Date:
July 03, 2017
Export Citation:
Assignee:
JXTG NIPPON OIL & ENERGY CORP (JP)
International Classes:
C08G63/60; H01B3/42; H01B17/56
Foreign References:
| JP2009127024A | 2009-06-11 | |||
| KR20130012509A | 2013-02-04 | |||
| JPH08509020A | 1996-09-24 |
Other References:
See also references of EP 3480240A4
Attorney, Agent or Firm:
NAGAI Hiroshi et al. (JP)
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