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:
Oct. 25, 1988
Filed:
Sep. 15, 1986
Applicant:
Inventors:
Volker Eckhardt, Krefeld, DE;
Hans-Rudolf Dicke, Krefeld, DE;
Ludwig Bottenbruch, Krefeld, DE;
Aziz E Sayed, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528128 ; 528125 ; 528126 ; 528183 ;
Abstract
Thermotropic, fully aromatic polyesters of p-hydroxybenzoic acid, 3,4'-benzophenone-dicarboxylic acid and certain bisphenols have a previously unknown combination of very high rigidity and high toughness.