Process for preparing water-absorbing and water-swellable polysa

Details Process for preparing water-absorbing and water-swellable polysa Process for preparing water-absorbing and water-swellable polysa

1989-01-23

1991-07-16

Griffin, Ronald W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carbohydrate or derivative as a reactant

527312, 527313, 527314, C08L 5102

Patent

active

050326597

ABSTRACT:
Water-absorbing and water-swellable polysaccharide graft polymers are prepared by inverse suspension polymerization of a polysaccharide with an ethylenically unsaturated monomer containing a carboxyl group followed by partial water removal and crosslinking.

REFERENCES:
patent: 4690996 (1987-09-01), Shih et al.
patent: 4777232 (1988-10-01), Heidel
patent: 4898921 (1990-02-01), Humphrey et al.

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