Process for etherifying cellulose with alkyl monochloroacetates

Details Process for etherifying cellulose with alkyl monochloroacetates Process for etherifying cellulose with alkyl monochloroacetates

1983-09-30

1985-07-02

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

536 44, 536 90, 536 91, C08B 11193, C08B 1108

Patent

active

045269610

ABSTRACT:
Disclosed is a process for preparing water-soluble sodium carboxymethyl cellulose (NaCMC), including mixed ethers of NaCMC, by etherifying cellulose with alkyl monochloroacetates in an aqueous-alkaline dispersion containing at least one organic solvent. In the process, cellulose is first alkalized in an aqueous-alkaline dispersion, which optionally already contains the organic solvent. Subsequently, the alkali cellulose is reacted essentially with an alkyl monochloroacetate as the etherifying agent, in the presence of the organic solvent.

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"Ullmanns Encyklopaedie der Technischen Chemie", Verlag Chemie, Weinheim/Bergstr., vol. 9, pp. 203-204.

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