Membranes comprising microporous structure

Details Membranes comprising microporous structure Membranes comprising microporous structure

1985-02-11

1986-06-17

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 88, 521139, 521140, C08G 1814

Patent

active

045957070

ABSTRACT:
Membrane compositions useful in filtration and distillation applications are prepared by providing a glassy polymer composition (e.g., polystyrene) optionally having an amount of crosslinking and crazing the polymer composition in the presence of a monomer (e.g., methyl methacrylate) which can graft to said polymer composition. The membrane compositions so prepared comprise a microporous structure wherein the micropores can contain polymeric material. Alternatively, the surface region of the membrane composition and/or the surface region of the micropores has a polymeric material grafted thereto.

REFERENCES:
patent: 3909463 (1975-09-01), Hartman
patent: 4430807 (1984-02-01), Davis et al.

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