| CMS TECHNOLOGIES HOLDINGS, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120097612 | ORGANIC FLUID PERMEATION THROUGH FLUOROPOLYMER MEMBRANES - Separation of the components of liquid mixtures is achieved by contacting a liquid mixture with a nonporous membrane having a fluoropolymer selectively permeable layer and imposing a pressure gradient across the membrane from feed side to permeate side. Unusually high transmembrane flux is obtained when the membrane is subjected to one or more process conditions prior to separation. These include (a) leaving some residual amount of membrane casting solvent in the membrane, and (b) contacting the membrane with a component of the mixture to be separated for a duration effective to saturate the membrane with the component. | 04-26-2012 |
| 20110266220 | SEPARATIONS WITH HIGHLY SELECTIVE FLUOROPOLYMER MEMBRANES - A method of separating components of mixtures of chemical compounds uses a nonporous membrane of copolymer of a perfluorinated cyclic or cyclizable monomer, and a 4 carbon dicarboxyl-containing comonomer, such as maleic anhydride. Optionally, the membrane composition includes an acyclic fluorinated olefin termonomer. The membranes provide a remarkably high selectivity of water relative to organic solvents and inorganic acids compared to dipolymer membranes of perfluorinated comonomers. | 11-03-2011 |
