Process for the manufacture of swellable, absorptive polymers of

Details Process for the manufacture of swellable, absorptive polymers of Process for the manufacture of swellable, absorptive polymers of

1976-09-13

1977-12-06

Lilling, Herbert J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 775UA, C08F29108, C08F 1824, C08F26100

Patent

active

040616924

ABSTRACT:
This invention relates to a process for the manufacture of absorptive polymers which are at least preponderantly insoluble in water, but capable of swelling in water, which comprises etherifying polyhydroxy methylene in a homogeneous phase in an aqueous alkaline solution with an .alpha.-halogen carboxylic acid, and prior to, during, or after the etherification process performing a further reaction with a cross-linking agent which is polyfunctional towards polyhydroxy methylene in an alkaline medium.

REFERENCES:
patent: 2918478 (1959-12-01), Newman
patent: 3331800 (1967-07-01), Schubel et al.

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