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. 23, 2010
Filed:
Mar. 27, 2006
Doetze Jakob Sikkema, Richmond, VA (US);
David J. Rodini, Midlothian, VA (US);
Qinghong Fu Adkins, Collinsville, VA (US);
Steven R. Allen, Midlothian, VA (US);
Georg Valentin Martin, Langenfeld, DE;
Ralf Demuth, Hilden, DE;
Michael Schelhaas, Köln, DE;
Doetze Jakob Sikkema, Richmond, VA (US);
David J. Rodini, Midlothian, VA (US);
Qinghong Fu Adkins, Collinsville, VA (US);
Steven R. Allen, Midlothian, VA (US);
Georg Valentin Martin, Langenfeld, DE;
Ralf Demuth, Hilden, DE;
Michael Schelhaas, Köln, DE;
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Magellan Systems International, LLC, Richmond, VA (US);
Abstract
Disclosed are processes for preparing polyareneazole polymers including contacting a molar excess of a free base in water with a terephthalic acid salt to form an aqueous mixture, adjusting the pH to precipitate a monomer complex, contacting the monomer complex with metal powder, and polymerizing the monomer complex. Polyareneazoles, filaments and yarns are also disclosed.