Water-absorbent starch copolymerizates

Details Water-absorbent starch copolymerizates Water-absorbent starch copolymerizates

1977-06-20

1978-09-19

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 173, 260 174ST, 260 174UC, 536 50, 536111, 128284, 128285, C08L 300

Patent

active

041153324

ABSTRACT:
Water-absorbent, starch copolymerizates are prepared by copolymerizing an ethylenically unsaturated starch with other ethylenically unsaturated monomers which contain water-attractant groups or precursors of water-attractant groups. The water-absorbent starch copolymerizates may be easily prepared into the desired configuration for a particular end-use or combined with other substrates or carriers. The unpolymerized starch and monomers or precursors thereof may be applied or incorporated into a suitable carrier or substrate (e.g., cellulosic materials such as textiles, papers, etc.) and copolymerized in situ to provide a composite article of unitary construction with the water-absorbent starch copolymerizate permanently bonded or affixed thereto.

REFERENCES:
patent: 2668156 (1954-02-01), Caldwell et al.
patent: 2928827 (1960-03-01), Paschall
patent: 3033852 (1962-05-01), Paschall
patent: 3135738 (1964-06-01), Cushing

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