US Patent 7851584 Process for preparing monomer complexes
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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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Patent Inventor Names
David J Rodini0
Doetze Jakob Sikkema0
Georg Valentin Martin0
Hasan Dindi0
James Arnold Schultz0
Michael Schelhaas0
Ralf Demuth0
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US Patent 07851584 Process for preparing monomer complexes US Patent 7851584 Process for preparing monomer complexes
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Patent Number
078515840
Patent Number
78515840
Edits on 25 Mar, 2023
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Patent Jurisdiction
Patent Number
078515840
Date of Patent
December 14, 2010
0Patent Application Number
119099230
Date Filed
March 27, 2006
0Official Website
Patent Primary Examiner
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US Patent 07851584 Process for preparing monomer complexes
Infobox
Is a
Patent jurisdiction
Patent number
07851584
Date of patent
December 14, 2010
Patent application number
11909923
Date Filed
March 27, 2006
Patent primary examiner
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