Backing for semipermeable membrane

Details Backing for semipermeable membrane Backing for semipermeable membrane

B - Operations, Transporting

32

B

18/500, 182/15.3

B32B 27/02 (2006.01) B32B 3/10 (2006.01) B32B 5/16 (2006.01) D01F 8/18 (2006.01) D01F 9/08 (2006.01) D04H 1/00 (2006.01) D04H 1/44 (2006.01) D04H 1/54 (2006.01) D04H 1/58 (2006.01)

Patent

CA 1098771

Abstract of the Disclosure A non-woven material which is particularly suitable for backing or supporting a semipermeable membrane at least one surface of which has an open- structured, continuous, calendered coating of fine thermoplastic particles. The coated non-woven material provides an optimum thin layer thickness independent of the variations in the surface of the material. In addition the coated non-woven material provides savings in cost, a reduction in rejection rate and in particular, semipermeable membranes with improved permeation rates.

292368

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