LOWERING OF MELT VISCOSITY OF LIQUID CRYSTAL POLYMER

Title:

LOWERING OF MELT VISCOSITY OF LIQUID CRYSTAL POLYMER

Document Type and Number:

Japanese Patent JPS6191221

Kind Code:

A

Abstract:

PURPOSE: To lower the melt viscosity of a liquid crystal polymer to such an extent that it can be easily molded, by heat-treating the liquid crystal polymer to a temperature between its melting point and its decomposition point and cooling it to a temperature between its melting-initiation point and its melting point.

CONSTITUTION: A liquid crystal polymer is heat-treated at a temperature between its melting point and its decomposition point and then cooled to a temperature between its melting-initiation point and its melting point. The polymer and is a thermoplastic polymer having a property as a liquid crystal in a molten state and may be a polymer of any liquid crystal structure such as a nematic, smectic or cholesteric structure. Among these polymers, a copolyester is desirable as the liquid crystal polymer and particularly, a copolyester having oxybenzoyl monomer units is desirable.

Inventors:

FUJIWARA KENICHI
YAMAJI KAZUTAKA
MASUDA TOSHISHIROU

Application Number:

JP21303184A

Publication Date:

May 09, 1986

Filing Date:

October 11, 1984

Export Citation:

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Assignee:

IDEMITSU PETROCHEMICAL CO

International Classes:

C08G63/00; C08G63/60; (IPC1-7): C08G63/60

Domestic Patent References:

JPS5741934A	1982-03-09
JPS54156059A	1979-12-08

Attorney, Agent or Firm:

Naoki Fukumura

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