Manifold adaptor plate for filtration apparatus

Abstract

A manifold adaptor plate useful as a gasket having liquid pathways which permit passing of a filtrate, a feed and a retentate wherein admixture of the filtrate with the feed or the retentate is prevented is provided and is formed of an elastomeric layer, a rigid intermediate layer and a polymer layer. The elastomeric layer functions as a gasket and is bonded to the polymeric layer through the liquid pathways of the intermediate plate. An elastomer layer may be formed on both layers as well and optionally a second polymer layer between the intermediate layer and the second elastomer layer may also be used.

1 . A manifold adaptor plate having a plurality of liquid pathways therethrough to effect passage of a liquid feed, a filtrate and a retentate comprising a silicone layer and an intermediate rigid layer wherein the silicone layer is formed on at least one side of the intermediate rigid layer and said silicone layer is bound to said intermediate rigid layer and extends through said liquid pathways to seal the rigid layer in the pathways with a silicone layer. 
     
     
         2 . The plate of  claim 1  further comprising a silicone layer formed on and bound to a second side of the intermediate rigid layer. 
     
     
         3 . The plate of  claim 1  further comprising a silicone layer formed on and bound to a second side of the intermediate rigid layer so as to encapsulate the rigid plate. 
     
     
         4 . The plate of  claim 1  wherein the rigid plate is made of a material selected from the group consisting of steel, polysulfones and polyethersulfones. 
     
     
         5 . The plate of  claim 1  wherein the rigid plate is made of stainless steel. 
     
     
         6 . The plate of  claim 1  wherein the rigid plate is made of polysulfone. 
     
     
         7 . The plate of  claim 1  wherein the rigid plate is made of polyethersulfone. 
     
     
         8 . The plate of  claim 1  wherein the silicone is of a volume sufficient to close off one or more of the liquid pathways. 
     
     
         9 . The manifold adaptor of  claim 1  further comprising tabs on two opposite sides of the intermediate layer. 
     
     
         10 . The manifold adaptor of  claim 1  further comprising a series of indentations on two opposite sides of the intermediate layer. 
     
     
         11 . A manifold adaptor plate having a plurality of liquid pathways therethrough to effect passage of a liquid feed, a filtrate and a retentate comprising a silicone layer and an intermediate rigid layer wherein the silicone layer is formed on at least one side of the intermediate rigid layer and said silicone layer is bound to said intermediate rigid layer and extends through said liquid pathways and the rigid layer is made of a material selected from the group consisting of steel, polysulfones and polyethersulfones. 
     
     
         12 . The plate of  claim 11  further comprising the silicone which extends through said liquid pathways overlays a portion of a second side of the intermediate rigid layer and is bound thereto. 
     
     
         13 . The plate of  claim 11  further comprising the silicone layer is formed on and bound to a second side of the intermediate rigid layer so as to encapsulate the rigid plate.