METHODS FOR PRODUCING WATER-SOLUBLE POLYMERS AND METHODS FOR PRODUCING WATER-ABSORBING PLASTICS

VN10061444BActive Publication Date: 2026-10-01NAGASE & CO LTD +2

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Patent Information

Application Number: VN1202307341
Authority / Receiving Office: VN · VN
Patent Type: Patents
Current Assignee / Owner
Filing Date: 2022-03-31
Publication Date: 2026-10-01
Estimated Expiration: 2042-03-31

Application Information

Patent Timeline

31 Mar 2022

Application

VN1202307341

01 Oct 2026

Publication

VN10061444B

Inventors: OTA, Kusuo; NOZAKI, Takahiro

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Abstract

The invention relates to a method for producing water-soluble polymers with high production efficiency, and a method for producing water-absorbing resins with excellent water absorption properties. The invention relates to a method for producing water-soluble polymers, including the following steps: (a) reducing the molecular weight of starch to obtain partially decomposed starch; and (a2) introducing an ionic group into the partially decomposed starch obtained in step (at).

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