发明申请
- 专利标题: Polyphenylene Sulfide Resin, Process for Producing the Same, and Fiber Comprising the Same
- 专利标题(中): 聚苯硫醚树脂,其制造方法和包含其的纤维
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申请号: US11791520申请日: 2005-11-22
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公开(公告)号: US20080139782A1公开(公告)日: 2008-06-12
- 发明人: Kei Saitoh , Atsushi Ishio , Takeshi Unohara
- 申请人: Kei Saitoh , Atsushi Ishio , Takeshi Unohara
- 申请人地址: JP Tokyo
- 专利权人: Toray Industries, Inc.
- 当前专利权人: Toray Industries, Inc.
- 当前专利权人地址: JP Tokyo
- 优先权: JP2004-347913 20041130
- 国际申请: PCT/JP2005/021427 WO 20051122
- 主分类号: C08G75/02
- IPC分类号: C08G75/02
摘要:
A polyphenylene sulfide resin treated by thermal oxidation has a generated gas amount of 0.23 wt % or less when the resin is heated and melted in vacuum at 320° C. for 2 hours; a residual amount of 3.0 wt % or less as a residue when the resin is dissolved in an amount corresponding to 20 times the weight of the resin, of 1-chloronaphthalene at 250° C. for 5 minutes and, as the 1-chloronaphthalene solution, pressure-filtered in a still hot state by a PTFE membrane filter with a pore size of 1 μm or less; and a melt flow rate (measured at a temperature of 315.5° C. and at a load of 5000 g according to ASTM D-1238-70) of more than 100 g/10 min to 500 g/10 min.