Process for producing an inorganic porous membrane

Details Process for producing an inorganic porous membrane Process for producing an inorganic porous membrane

1989-05-26

1990-05-29

Sever, Frank

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 48, 264 60, B01D 1304

Patent

active

049294067

ABSTRACT:
A multilayer inorganic porous membrane consisting of a monolayer or multilayer porous support having at least one surface integrally formed thereon with a porous thin layer having an average pore size less than that of the porous support, wherein a maximum pore size in the support surface is defined to be from 1 to 250 times an average pore size of the thin layer. The multilayer porous membrane is superior in preventing the occurrence of pin holes and cracks therein thereby to enhancing precision of the filtration and separation.

REFERENCES:
B. E. Yoldas, "Hydrolysis of titanium alkoxide and effects of hydrolytic polycondensation parameters", Journal of Materials Science, vol. 21, 1986, pp. 1087-1092.

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