Heat-resisting porous membrane, hydrophilized heat-resisting por

Details Heat-resisting porous membrane, hydrophilized heat-resisting por Heat-resisting porous membrane, hydrophilized heat-resisting por

1992-04-14

1994-07-19

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

264 41, 264 451, 264 455, 525243, 21050023, 21050035, B32B 326, B29C 6500, C08F 400, B01D 3321

Patent

active

053308301

ABSTRACT:
A heat-resisting porous membrane comprises a porous polyolefin membrane having a crosslinked copolymer held on at least a part of the pore surfaces thereof, the crosslinked copolymer being composed of a monomer (A) comprising at least one multifunctional (meth)acrylate and a monomer (B) comprising at least one monofunctional (meth)acrylate having a hydrocarbon radical of 5 to 20 carbon atoms; and the heat-resisting porous membrane can be hydrophilized by additionally having a crosslinked polymer thereon. These heat-resisting porous membranes can be used in hot water for a long period of time without deteriorating the mechanical properties inherently possessed by the matrix of the porous membrane.

REFERENCES:
patent: 4919865 (1990-04-01), Nelson
patent: 4961853 (1990-10-01), Itoh et al.

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