Liquid-absorbent polymer and gelatinoid product

Details Liquid-absorbent polymer and gelatinoid product Liquid-absorbent polymer and gelatinoid product

C - Chemistry, Metallurgy

08

F

C08F 251/00 (2006.01) B01J 20/26 (2006.01) C08F 251/02 (2006.01) C08L 51/02 (2006.01)

Patent

CA 2265065

Disclosed are a liquid-absorbent polymer and a substantially clear gelatinoid product. The liquid absorbent polymer comprises a saponified graft copolymer of starch and a polynitrile species, such as polyacrylonitrile. In accordance with the disclosed invention, the liquid-absorbent polymer is prepared from a derivatized starch, the derivatized starch having a degree of substitution sufficient to substantially inhibit starch-starch interactions in the gelatinoid product formed upon mixing of the polymer with liquid. Preferred starches have a degree of substitution (DS) of at least about 0.01. Upon saponification of the liquid-absorbent polymer and placing of the polymer into absorbent contact with a liquid, a gelatinoid product will be formed. The gelatinoid product thus formed will have a substantially homogeneous index of refraction, and thus will be substantially clear.

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