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. 16, 1993
Filed:
Dec. 06, 1991
Applicant:
Inventors:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
525434 ; 525420 ; 525435 ;
Abstract
Fusible, rod-like, graft polymers and copolymers having repeating units of the formula: ##STR1## wherein x ranges from 0 to about 0.97, y is 1-x, Y is a poly(etherketone) (PEK) or a poly(etheretherketone) (PEEK), and wherein Ba is a benzobisimidazole or benzobisthiazole moiety are provided. Also provided are methods for preparing the above polymers and copolymers, 2-(2,6-dimethylphenoxy)terephthalic acid and a method for preparing the latter.