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Title:
LIQUID-CRYSTAL RESIN, LIQUID-CRYSTAL RESIN COMPOSITION AND MOLDED ARTICLE MADE THEREFROM
Document Type and Number:
Japanese Patent JP3487053
Kind Code:
B2
Abstract:

PURPOSE: To obtain a liquid-crystal resin excellent in moldability when molding a small-size or thin-wall article, mechanical characteristics and heat resistance by providing a specified liquid-crystal resin with specified physical characteristics.
CONSTITUTION: This resin comprises a liquid-crystal polyester consisting of structural units (A) selected among aromatic oxycarbonyl, aromatic dioxy, aromatic dicarbonyl and ethylenedioxy units, or a liquid-crystal polyester-amide consisting of structure units A and structural units selected among aromatic iminocarbonyl, aromatic diimino and aromatic iminooxy units and has an inherent viscosity of 0.3-20.0dl/g as measured in the solution of a concentration of 0.1g/dl in pentafluorophenol at 60°C. This resin has such properties that the temperature T120(°C) at which the semicrystallization time is 120sec satisfies the relation of the formula (Tm-120)≥30 or (T120-Tc)≥15 [Tm is the melting point (°C) of liquid-crystal resin; and Tc is the crystallization temperature (°C) of liquid-crystal resin].


Inventors:
Kurematsu, Toshio
Nakamura, Seiichi
Inoue, Shunei
Application Number:
JP1995000339521
Publication Date:
January 13, 2004
Filing Date:
December 26, 1995
Export Citation:
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Assignee:
TORAY IND INC
International Classes:
C08J5/00; C08G63/60; C08G69/44; C08K3/00; C08K5/02; C08K7/02; C08L67/00; C08L77/00; C08L77/12; (IPC1-7): C08G63/60; C08G69/44; C08L67/00; C08L77/12