PROCESS FOR PREPARING SWELLABLE AND ABSORPTIVE POLYMER COMPRISING POLYHYDROXYMETHYLENE

Title:

PROCESS FOR PREPARING SWELLABLE AND ABSORPTIVE POLYMER COMPRISING POLYHYDROXYMETHYLENE

Document Type and Number:

Japanese Patent JPS5236178

Kind Code:

A

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.

Inventors:

ARUNO HORUSUTO
MIHIYAERU KOSUTORUTSUEBUA

Application Number:

JP11128976A

Publication Date:

March 19, 1977

Filing Date:

September 16, 1976

Export Citation:

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Assignee:

HOECHST AG

International Classes:

C08F8/02; C08G61/04; C08B15/10; (IPC1-7): C08B11/12; C08B11/20; C08B15/10

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