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:
May. 09, 2006
Filed:
Jan. 12, 2004
Thuy D. Dang, Centerville, OH (US);
Narayanan Venkatasubramanian, Beavercreek, OH (US);
Jar-wha Lee, Columbus, OH (US);
Soo-young Park, Daegu, KR;
Fred E. Arnold, Centerville, OH (US);
Barry L. Farmer, Xenia, OH (US);
Thuy D. Dang, Centerville, OH (US);
Narayanan Venkatasubramanian, Beavercreek, OH (US);
Jar-Wha Lee, Columbus, OH (US);
Soo-Young Park, Daegu, KR;
Fred E. Arnold, Centerville, OH (US);
Barry L. Farmer, Xenia, OH (US);
The United States of America as represented by the Secretary of the Air Force, Washington, DC (US);
Abstract
A benzobisazole polymer having repeating units of the formula:wherein Q isand wherein Z is —O—, —S— or —NH—. A new method for preparing 1,5-naphthalenedicarboxylic acid from 1,5-diaminonaphthalene under relatively mild conditions in good yields is also described.