Invention Grant
- Patent Title: Processes for increasing polymer inherent viscosity
- Patent Title (中): 增加聚合物固有粘度的方法
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Application No.: US11390939Application Date: 2006-03-27
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Publication No.: US07683122B2Publication Date: 2010-03-23
- Inventor: Doetze Jakob Sikkema , David J. Rodini , Qinghong Fu Adkins , Steven R. Allen , Georg Valentin Martin , Ralf Demuth , Michael Schelhaas
- Applicant: Doetze Jakob Sikkema , David J. Rodini , Qinghong Fu Adkins , Steven R. Allen , Georg Valentin Martin , Ralf Demuth , Michael Schelhaas
- Applicant Address: US DE Wilmington US VA Richmond
- Assignee: E. I. du Pont de Nemours and Company,Magellan Systems International, LLC
- Current Assignee: E. I. du Pont de Nemours and Company,Magellan Systems International, LLC
- Current Assignee Address: US DE Wilmington US VA Richmond
- Agency: Woodcock Washburn LLP
- Main IPC: C08J3/14
- IPC: C08J3/14 ; C08K3/32 ; C08F6/12
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.
Public/Granted literature
- US20070072993A1 Processes for increasing polymer inherent viscosity Public/Granted day:2007-03-29
Information query
