Liquid purification or separation – Filter – Supported – shaped or superimposed formed mediums
Patent
1994-08-05
1997-03-04
Spear, Frank
Liquid purification or separation
Filter
Supported, shaped or superimposed formed mediums
21050027, 264 41, B01D 7106
Patent
active
056075901
ABSTRACT:
There are disclosed a material for medical use comprising two sheets of collagen membrane adhered to each other with an adhesive and having interposed therebetween a mesh-like intermediary material, wherein the mean pore size of the mesh-like intermediary material is between 100 and 2000 .mu.m; and a process for preparing a material for medical use comprising (a) laminating with an adhesive two sheets of a collagen membrane having a mesh-like intermediary material interposed therebetween; (b) maintaining the resulting laminated material under a reduced pressure so that the two sheets of collagen membrane are adhered to each other through the mesh-like intermediary; and (c) cross-linking the laminated material.
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