Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ralf Demuth0
Hasan Dindi0
James Arnold Schultz0
Michael Schelhaas0
David J Rodini0
Doetze Jakob Sikkema0
Georg Valentin Martin0
Date of Patent
December 14, 2010
0Patent Application Number
119099230
Date Filed
March 27, 2006
0Patent Primary Examiner
Patent abstract
Disclosed are processes for preparing monomer complexes that include contacting 2,3,5,6-tetraminopyridine free base in water with 2,5-dihydroxy terephthalic acid dipotassium salt to form an aqueous mixture, and adjusting the pH of the aqueous mixture to within the range of from about (3) to about (5) to precipitate the monomer complex. Processes of polymerizing the monomer complexes, polyareneazoles, filaments and yarns are also disclosed.
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