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:
Aug. 04, 1992
Filed:
Jun. 03, 1991
Applicant:
Inventors:
Thuy D Dang, Dayton, OH (US);
Hoe H Chuah, Houston, TX (US);
Loon S Tan, Centerville, OH (US);
Fred E Arnold, Centerville, OH (US);
Assignee:
United States of America as Represented by the Secretary of the Air Force, Washington, DC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528183 ; 528186 ; 528193 ; 528337 ; 528342 ;
Abstract
There are provided novel rod-like heterocyclic aromatic copolymers having peating groups of the formula: ##STR1## wherein n has a value of 0.01 to 0.50, wherein Ar is a para-oriented aromatic group and Q is an aromatic heterocyclic group of the formula: ##STR2## wherein Y is --S--, --O-- or --NR--, wherein R is selected from the group consisting of --H, alkyl having 1 to 4 carbon atoms, and aromatic having 1 or 2 aromatic rings.