Auf Integrität testbare Filtrationseinheit mit hydrophilen, porösen Membranen

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.