Membranes based on silicic acid heteropolycondensates and a proc

Details Membranes based on silicic acid heteropolycondensates and a proc Membranes based on silicic acid heteropolycondensates and a proc

1983-05-03

1985-03-19

Childs, S. L.

Stock material or miscellaneous articles

Composite

Of silicon containing

2105002, 4272481, 427255, 4272552, 4272553, 427302, 427322, 427326, 427387, 427266, 528 10, 528 31, 528 32, 528 38, 528 39, B32B 904

Patent

active

045059853

ABSTRACT:
Membranes based on silicic acid heteropolycondensates are produced by hydrolytic polycondensation of at least one silicic acid derivative in the presence of water and, if appropriate, a condensation catalyst, the polycondensation being carried out at the surface of a support, which supports the resulting membrane. The reactants can be fed to the surface of the support via the gas phase or via one or more liquid phases.

REFERENCES:
patent: 2474704 (1949-06-01), Thayer
patent: 4238590 (1980-12-01), Scholze et al.
patent: 4243692 (1981-01-01), Scholze et al.
patent: 4374696 (1983-02-01), Schmidt et al.
patent: 4374933 (1983-02-01), Scholze et al.
patent: 4393113 (1983-07-01), Sugie et al.

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