发明授权
- 专利标题: Non-woven fabric for separator of alkali cell and method for production thereof
- 专利标题(中): 碱槽隔膜用无纺布及其制造方法
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申请号: US10515276申请日: 2003-05-22
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公开(公告)号: US07405172B2公开(公告)日: 2008-07-29
- 发明人: Toshihiro Shigematsu , Shigehiro Maeda , Takashi Katayama
- 申请人: Toshihiro Shigematsu , Shigehiro Maeda , Takashi Katayama
- 申请人地址: JP Tokyo JP Osaka
- 专利权人: Mitsubishi Paper Mills Limited,Kuraray Co., Ltd.
- 当前专利权人: Mitsubishi Paper Mills Limited,Kuraray Co., Ltd.
- 当前专利权人地址: JP Tokyo JP Osaka
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2002-147215 20020522
- 国际申请: PCT/JP03/06376 WO 20030522
- 国际公布: WO03/098720 WO 20031127
- 主分类号: D04H1/00
- IPC分类号: D04H1/00 ; B32B27/04
摘要:
The present invention provides a non-woven fabric for an alkaline battery separator comprising semi-aromatic polyamide fibers comprising a dicarboxylic acid component, in which 60 mol % or more of the dicarboxylic acid component is an aromatic carboxylic acid component, and a diamine component, in which 60 mol % or more of the diamine component is an aliphatic alkylene diamine having 6 to 12 carbon atoms, and ethylene/vinyl alcohol copolymer fibers; wherein, the separator non-woven fabric has superior alkaline resistance in which the weight loss rate after 20 days is 5% or less in an alkaline resistance test at 90° C. in aqueous KOH solution having a specific gravity of 1.30. Consequently, since the present invention enables rapid charging and large-current discharging while also allowing thickness to be reduced for higher capacity, it can be preferably used as a non-woven fabric for an alkaline battery separator.