Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing
Patent
1986-05-13
1989-02-14
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ion-exchange polymer or process of preparing
521 31, 210656, C08D 520
Patent
active
048046868
ABSTRACT:
Cation-exchange support materials and methods for producing such materials are disclosed. In making the support materials, first a thin layer of an adsorbate comprising amine groups is adsorbed to an inorganic support material such as silica, alumina or titania. The adsorbed coating is then optionally crosslinked by a crosslinking agent such as epoxy resin or alkyl bromide. At least one amine group of the adsorbed crosslinked coating is then reacted, preferably in the presence of a proton scavenger, with an amount of a hydrophilic reagent sufficient to generate at least one carboxyl group. Alternatively, amine groups of the uncrosslinked adsorbed coating are reacted, preferably in the presence of a proton scavenger, with an amount of a hydrophilic polyfunctional reagent sufficient to simultaneously crosslink said coating and generate carboxyl groups.
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Cation-Exchange High-Performance Liquid Chromatography of Proteins on Poly(Aspartic Acid)-Silica--Alpert--Journal of Chromatography, 266 (1983), 23-37.
Kopaciewicz William
Regnier Frederick F.
Baker William L.
Channing Stacey L.
Kulkosky Peter F.
Purdue Research Foundation
Schofer Joseph L.
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