Process for increasing the resistance to water of pre-coated pre

Details Process for increasing the resistance to water of pre-coated pre Process for increasing the resistance to water of pre-coated pre

1979-12-05

1981-06-02

Adee, John

Liquid purification or separation

With means to add treating material

Chromatography

210658, 427341, 427344, B01D 1508

Patent

active

042710219

ABSTRACT:
A process for increasing the resistance to water of a chromatographic sorbent layer coated onto a support and comprising a binder of (a) salt(s) of (a) polyacrylic acid(s) and/or polymethacrylic acid(s), comprises treating the coated sorbent layer with an acid and then washing and drying the acid treated layers. The thus-prepared chromatographic materials are not only highly water resistant but also have an advantageously low impurity content.

REFERENCES:
patent: 3492155 (1970-01-01), Baitsholts et al.
patent: 3502217 (1970-03-01), Bruckner
patent: 3535296 (1970-10-01), Baron et al.
patent: 3922431 (1975-11-01), Radmacher et al.
patent: 4064041 (1977-12-01), Halpaap et al.

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