Grain Processing Corporation

Adrian P Kightlinger

Richard L Antrim

E Daniel Hubbard

Stuart W Mabee

Todd Sanner

J Reagan Davis

Robert B Huston

Disclosed is a method for derivatizing a malto-oligosaccharide. The method includes the steps of providing the malto-oligosaccharide and derivatizing the malto-oligosaccharide in an aqueous medium with a cationic agent to form a derivatized malto-oligosaccharides. Malto-oligosaccharides having a high DS sufficient to render the derivatized product suitable for use as a trash scavenger are attainable in accordance with the present inventive method. Also disclosed are a method for trash scavenging, a process for preparing a paper web, in which anionic trash is scavenged prior to withdrawing a paper web from a pulp furnish; and a paper web prepared in accordance with the present inventive process.

Derivatized malto-oligosaccharides, methods for trash scavenging, and process for preparing a paper web

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.

Liquid-absorbent polymer and gelatinoid product

Borated starch compositions useful for controlling the rate of crosslinking of hydratable polymers in aqueous media for use in drilling fluids.

Borate-starch compositions for use in oil field and other industrial

YImproved liquid absorbent products comprising saponified polymers or copolymers or starch graft copolymers of 2-propenenitrile or 2-methyl-2-propenenitrile which exhibit a white appearance. The products are produced by the use of an oxidizing agent or a reducing agent or a combination of an oxidizing agent and a reducing agent.

Absorbent compositions

A substantially water-insoluble solid liquid-absorbing composition comprising an alkali metal salt of an aqueous alcoholic alkali saponified cross-linked homopolymer of acrylonitrile or methacrylonitrile and the process for the preparation thereof.

Growing community of inventors

Muscatine, IA, United States of America

Adrian P Kightlinger