The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 1989
Filed:
Mar. 18, 1988
Applicant:
Inventor:
Shigeru Sugimori, Musashinoshi, JP;
Assignee:
Chisso Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528182 ; 528125 ; 528126 ; 528173 ; 528176 ; 528179 ; 528190 ; 528191 ; 528193 ; 528274 ;
Abstract
A process for directly producing liquid crystalline polymers from cyclohexanedicarboxylic acids and aromatic diols is provided. These raw materials can be converted into polyesters capable of finishing into fibers, films, etc., using the combination of thionyl chloride and pyridine as a condensing agent. In the present invention, aromatic oxycarboxylic acids can be used in combination in an optional proportion, in addition to the above two raw materials.