Invention Grant
- Patent Title: Dope and process for the production of fiber from the dope
- Patent Title (中): 从涂料生产纤维的涂料和工艺
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Application No.: US12092390Application Date: 2006-11-01
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Publication No.: US07838622B2Publication Date: 2010-11-23
- Inventor: Masayuki Chokai , Anton Peter De Weijer , Hiroaki Kuwahara , Dennis Wilbers
- Applicant: Masayuki Chokai , Anton Peter De Weijer , Hiroaki Kuwahara , Dennis Wilbers
- Applicant Address: JP Osaka JP Osaka
- Assignee: Teijin Limited,Teijin Techno Products Limited
- Current Assignee: Teijin Limited,Teijin Techno Products Limited
- Current Assignee Address: JP Osaka JP Osaka
- Agency: Sughrue Mion, PLLC
- Priority: JP2005-319412 20051102
- International Application: PCT/JP2006/322317 WO 20061101
- International Announcement: WO2007/052825 WO 20070510
- Main IPC: C08G69/00
- IPC: C08G69/00 ; C08G69/28

Abstract:
This invention is to provide a dope that has excellent formability and can be formed into a fiber, a film, pulp-shaped particles and the like by a wet method. This invention is also to provide a process for the production of a fiber excellent in heat resistance, strength and elastic modulus. This invention provides a dope and a process for the production of a fiber from the dope, the dope including a polyamide and a basic solvent, the polyamide containing a recurring unit of the following formula (I), wherein Ar1 represents at least one substituent selected from the group consisting of and having an inherent viscosity of 1.0 or more, the dope has a polyamide concentration of over 10% by weight but not more than 25% by weight and exhibits optical anisotropy at 50° C.
Public/Granted literature
- US20090127735A1 DOPE AND PROCESS FOR THE PRODUCTION OF FIBER FROM THE DOPE Public/Granted day:2009-05-21
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