Invention Grant
- Patent Title: Process for the production of polyarenazole polymer
- Patent Title (中): 聚赖氨酸聚合物生产工艺
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Application No.: US11390898Application Date: 2006-03-27
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Publication No.: US07683157B2Publication Date: 2010-03-23
- Inventor: Steven R. Allen , Stephen D. Moore , Christopher William Newton , David J. Rodini , Catherine Fu Adkins , Doetze Jakob Sikkema
- Applicant: Steven R. Allen , Stephen D. Moore , Christopher William Newton , David J. Rodini , Catherine Fu Adkins , Doetze Jakob Sikkema
- 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: C08G73/06
- IPC: C08G73/06
Abstract:
The present invention concerns a process for making a polyareneazole polymer comprising the steps of: a) contacting azole-forming monomers, metal powder, and optionally P2O5, in polyphosphoric acid to form a mixture; b) blending the mixture at a temperature of from about 50° C. to about 110° C.; c) further blending the mixture at a temperature of up to about 145° C. to form a solution comprising an oligomer; d) optionally, degassing the solution; and e) reacting the oligomer solution at a temperature of about 160° C. to about 250° C. for a time sufficient to form a polymer.
Public/Granted literature
- US20060287475A1 Process for the production of polyarenazole polymer Public/Granted day:2006-12-21
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