Process for preparation of mixed cellulose ethers containing 2,3

Details Process for preparation of mixed cellulose ethers containing 2,3 Process for preparation of mixed cellulose ethers containing 2,3

1975-03-17

1977-03-22

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

106170, 536 90, 536 91, C08B 11193

Patent

active

040138216

ABSTRACT:
A process for the manufacture of cellulose ethers is characterized in that cellulose ethers which contain one or several alkyl, hydroxyalkyl, or carboxyalkyl substituents and which have a total degree of substitution (D.S.) of 0.05 to 4.0 are converted into the corresponding 2,3-dihydroxypropyl mixed ethers by reaction with glycidol and/or glycerol monohalohydrin such as 1-halo-2,3-dihydroxypropane and that the reaction products are processed in a manner known per se, as well as a cellulose mixed ether containing 2,3-dihydroxypropyl ether groups produced by the above process; along with an aqueous composition having increased viscosity comprising water containing this cellulose mixed ether plus borate ions.

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patent: 3903075 (1975-09-01), Schminke et al.

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