发明名称 |
Polyethylene microporous membrane of ultra high molecular weight |
摘要 |
A polyethylene microporous membrane having a thickness of at most 10 mu m, a breaking strength of at least 200 kg/cm2 and a porosity of at least 30% is produced by heating and dissolving polyethylene having a weight average molecular weight of at least 5x105 in a solvent, forming a gel sheet from the resulting solution, subjecting the gel sheet to a solvent removal treatment to adjust the amount of the solvent in the gel sheet to 10 to 80% by weight, heating and stretching the sheet and then removing the residual solvent therefrom.
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申请公布号 |
US4588633(A) |
申请公布日期 |
1986.05.13 |
申请号 |
US19850728806 |
申请日期 |
1985.04.29 |
申请人 |
TOA NENRYO KOGYO KABUSHIKI KAISHA |
发明人 |
KONO, KOICHI;MORI, SHOICHI;MIYASAKA, KENJI;TABUCHI, JYOICHI |
分类号 |
C08J9/28;B01D67/00;B01D71/26;B29C55/02;B29K23/00;B29K105/04;C08J5/18;(IPC1-7):B32B27/32 |
主分类号 |
C08J9/28 |
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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