Low ph preparation of cationic starches and flours

Details Low ph preparation of cationic starches and flours Low ph preparation of cationic starches and flours

C - Chemistry, Metallurgy

08

B

6/63, 260/221.2

C08B 31/00 (2006.01) C08B 31/12 (2006.01) D21H 17/29 (2006.01)

Patent

CA 1098655

Abstract of the Disclosure A novel process is disclosed for preparing cationic starches and flours by reacting starch-containing materials in a dry state with a halohydrin at a pH of 9 or below without the necessity for subsequent alkali neutralization or washing. The resultant products have cationic properties remarkably superior to prior art cationic starches over a broad range of acid and alkaline pH's. In the manufacture of paper, they serve as excellent pigment retention and dry-strength improvement agents.

302661

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