Process for removing water from water soluble polymer

Details Process for removing water from water soluble polymer Process for removing water from water soluble polymer

1976-11-24

1978-08-08

Yudkoff, Norman

Distillation: processes, separatory

Distilling to separate or remove only water

From organic compound

203 65, 203 62, 203 8, 260 296E, 528493, 528495, 528501, 159DIG10, C07B 500

Patent

active

041055101

ABSTRACT:
The invention relates to an improved process for removing water, under elevated temperature, from aqueous gel of water soluble polymer, such as polymer or copolymer of acrylamide and/or quaternary ammonium salts of dialkylaminoamlkylmethacrylate, to prevent from the deterioration of polymer properties. The process is accomplished by addition of polyhydric phenols, benzoquinones or derivatives thereof prior to removal of water.

REFERENCES:
patent: 2435777 (1948-02-01), Glavis
patent: 2435950 (1948-02-01), Neher
patent: 3163619 (1964-12-01), Sheats et al.
patent: 3674651 (1972-07-01), Otsuki et al.
patent: 3849361 (1974-11-01), Zweigle
patent: 4021310 (1977-05-01), Kogyo

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