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:
Jun. 27, 1989
Filed:
Dec. 15, 1987
Applicant:
Inventors:
Heinz-Guenter Poll, Hilden, DE;
Martin Bartmann, Recklinghausen, DE;
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528176 ; 528180 ; 528181 ; 528191 ; 528194 ; 528195 ; 528206 ; 528271 ; 25229901 ;
Abstract
Aromatic polyesters based on phenoxyterephthalic acid, a method of manufacturing the same, and applications of the same. The inventive polyesters are based on phenoxyterephthalic acid, one or more other aromatic dicarboxylic acids, a dihydroxyaryl compound (with 2 OH groups attached to an aromatic ring), and an hydroxyaromatic carboxylic acid, are partially crystalline, form an anisotropic melt phase, and are processible at up to 360.degree. C. The polyesters may be used for manufacturing pieces formed by molding, extrusion, or other standard forming techniques.