Method for preparing starch ether derivatives

Details Method for preparing starch ether derivatives Method for preparing starch ether derivatives

C - Chemistry, Metallurgy

08

B

260/221.3

C08B 31/12 (2006.01)

Patent

CA 1106365

ABSTRACT OF THE DISCLOSURE Starch ether derivatives are prepared by reacting a starch base with about 0.5 - 100% by weight of a neutralized alkyl ester of 3-chloro- 2-sulfopropionic acid, based on dry starch, and then isolating the resultant starch derivative. The 2-sulfo-2-carboxyethyl starch ethers thus prepared may be utilized in many applications, and are particularly useful as wet-end additives in paper manufacturing at low pH.

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