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US 6,783,711 B2Granted
Process for preparing a sulfonamide polymer matrix
AssigneeGE Osmonics, Inc.
InventorsChristopher J. Kurth, Steven D. Kloos, Leonard T. Hodgins, Jessica A. Peschl
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Abstract
Sulfonamide polymer matrices and their various uses are disclosed. Among the uses is the configuration of the matrix with a porous support membrane to form a semipermeable membrane of the invention. The matrix of the invention is ultrathin, dense and substantially free of defects. The matrix configuration as the semipermeable membrane shows improved permeate flux and retention values.
Claims16
A process for preparing a sulfonamide polymer matrix comprising:
- contacting a first phase comprising an amine compound having an organic nucleus and at least two primary and/or secondary amine groups, with a second phase comprising a sulfonyl compound having an organic nucleus and at least two sulfonyl groups capable of forming sulfonamide bonds with an amine group to form the matrix of sulfonamide polymer, wherein the time for formation of the matrix is less than 240 seconds.
Dependencies are inferred from the claim text.