发明名称 |
POLYPROPYLENE HIGHLY SPREAD PLEXIFILAMENTARY FIBER, DOPE USED FOR MANUFACTURING SAME, AND METHOD OF MANUFACTURING SAME |
摘要 |
A polypropylene three-dimensional plexifilamentary fiber having a microwave birefringence of 0.07 or more and an Mw/Mn of 4.3 or less. Although a spreading agent is not included in this fiber, the fiber has a superior fiber spreadability and dimensional stability. The fiber in accordance with the present invention can be spun from a dope composed of an isotactic polypropylene having an Mw/Mn of 4.3 or less and an MFR of 20 or less, and a halogenated hydrocarbon, by a flash spinning technique. Further, the present invention provides a spinning dope and a method of manufacturing the fiber which effectively prevent ozone layer destruction by using a 2,2-dichloro-1,1,1-trifluoroethane, a 1,2-dichlorotrifluoroethane or a solvent blended a dichloromethane with either of the above two solvents as the halogenated hydrocarbon. |
申请公布号 |
EP0407953(A3) |
申请公布日期 |
1991.09.25 |
申请号 |
EP19900113124 |
申请日期 |
1990.07.10 |
申请人 |
ASAHI KASEI KOGYO KABUSHIKI KAISHA |
发明人 |
SHIMURA, KAZUHIKO;NAKAYAMA, YOSHIAKI |
分类号 |
D01D5/11;D01F6/06;(IPC1-7):D01D5/11 |
主分类号 |
D01D5/11 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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