发明授权
- 专利标题： AUF INTEGRITÄT TESTBARE FILTRATIONS-EINHEIT MIT HYDROPHILEN, PORÖSEN MEMBRANEN
- 专利标题（英）： Filtration unit which can be tested for integrity and has hydrophilic porous membranes
- 专利标题（中）： 与亲水性的多孔膜完整性测试过滤单元
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申请号： EP96939854.4申请日： 1996-11-20
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公开(公告)号： EP0863792B1公开(公告)日： 1999-09-29
- 发明人: KONSTANTIN, Peter , REIF, Oscar-Werner , RUPP, Jürgen , SOELKNER, Peter
- 申请人： SARTORIUS AG
- 申请人地址： Weender Landstrasse 94-108 37075 Göttingen DE
- 专利权人： SARTORIUS AG
- 当前专利权人： SARTORIUS AG
- 当前专利权人地址： Weender Landstrasse 94-108 37075 Göttingen DE
- 优先权： DE19543955 19951125
- 国际公布： WO9719743 19970605
- 主分类号： B01D63/06
- IPC分类号： B01D63/06 ; B01D65/00
摘要：
The invention relates to a filtration unit which can be tested for integrity and has hydrophilic porous membranes (2) which at their edge regions are embedded in a fluid-tight manner by means of thermoplastic polymer material in anchoring elements (5), exhibit no edge water repellence and have greater filtration reliability and efficiency. It was found that filtration membranes of this type can be produced if hydrophilic porous membranes (2) are embedded at their edge regions by means of thermoplastic polymer material in a fluid-tight manner in anchoring elements (5) which at least in their edge regions and on at least one side are joined using heat and pressure to at least one porous flat structure (1) of thermoplastic polymer fibres. The claimed filtration units can be used in particular as filter candles in areas requiring a high level of filtration reliability, in particular in the pharmaceuticals and food industry, in the medical and laboratory field and in biotechnology.
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