Process for producing porous materials

Details Process for producing porous materials Process for producing porous materials

1978-06-22

1980-12-09

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 63, 521 64, C08J 928

Patent

active

042385717

ABSTRACT:
A process for preparing a porous material having a fine pore size which comprises preparing a solution comprising resin comprising a vinylidene fluoride/tetrafluoroethylene copolymer, a vinylidene fluoride polymer or a mixture thereof and at least a solvent for the resin and a non-solvent for the resin, and removing the solvent and the non-solvent from the solution, wherein a part of the resin is dissolved or swollen during the removal of the solvent and non-solvent.

REFERENCES:
patent: 3450650 (1969-06-01), Murata
patent: 3544489 (1970-12-01), Dowbenko et al.
patent: 3575897 (1971-04-01), Port et al.
patent: 3620895 (1971-11-01), Bailey
patent: 3642668 (1972-02-01), Bailey et al.
patent: 3655591 (1972-04-01), Seiner
patent: 3752784 (1973-08-01), Jenkins
patent: 3753932 (1973-08-01), Jenkins
patent: 3784488 (1974-01-01), Steinhauer et al.
patent: 3956201 (1976-05-01), Seiner

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