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:
Sep. 07, 2010
Filed:
Jun. 15, 2006
Loon-seng Tan, Centerville, OH (US);
David H. Wang, Beavercreek, OH (US);
Jong-beom Baek, Chungbuk, KR;
Loon-Seng Tan, Centerville, OH (US);
David H. Wang, Beavercreek, OH (US);
Jong-Beom Baek, Chungbuk, KR;
The United States of America as represented by the Secretary of the Air Force, Washington, DC (US);
Abstract
In accordance with the present invention there are provided hyperbranched benzobisazole polymers having repeating units of the formulas: and hyperbranched bibenzazole polymers having repeating units of the formulas: wherein Q is —S— or —NH—; the terminal groups X and Y are COOH and respectively, with their total number (X+Y) equals n+1, where n=degree of polymerization. The ratio X:Y can be controlled by varying the stoichiometric ratio of trimesic acid (Amonomer) and 2,5-diamino-1,4-dimercaptobenzene dihydrochloride (Bmonomer) from 1:1 to 1.1.35.