Method for preparing starch ether derivatives

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

1978-06-26

1979-09-11

Marquis, Melvyn I.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

162175, 536 49, C08B 3116, C08B 3306

Patent

active

041676211

ABSTRACT:
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.

REFERENCES:
patent: 3271387 (1966-09-01), Patel et al.
patent: 3770472 (1973-11-01), Jarowenko
patent: 4029544 (1977-06-01), Jarowenko et al.
patent: 4119487 (1978-10-01), Tessler

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