Reverse osmosis membrane compositions, e.g., desalinization, etc. > Patents

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Class Information
Number: 524/909
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Reverse osmosis membrane compositions, e.g., desalinization, etc.
Description: Subject matter wherein the composition is suitable for use in a reverse osmosis membrane.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
5512176	Desalination process	Apr. 30, 1996
4260652	Preparation of permselective composite membrane	Apr. 7, 1981
4123424	Polymeric piperazinamides and membranes for reverse osmosis made therefrom	Oct. 31, 1978
4039499	Product	Aug. 2, 1977
3993625	Permselective polymeric membranes of organic polyamide or polyhydrazide	Nov. 23, 1976
3951920	Permselective polymeric membrane prepared from polybenzimidazoles	Apr. 20, 1976
3950257	Semipermeable membrane and process for the preparation thereof	Apr. 13, 1976
3935172	Regular copolyamides as desalination membranes	Jan. 27, 1976