Modified ethyl cellulose

Details Modified ethyl cellulose Modified ethyl cellulose

C - Chemistry, Metallurgy

08

B

117/109, 18/806,

C08B 11/12 (2006.01) A61K 9/28 (2006.01) C08B 11/193 (2006.01)

Patent

CA 1046055

ABSTRACT OF THE DISCLOSURE Cellulose derivatives are described comprising a normally water-insoluble ethyl cellulose having .05 to .4 carboxyalkyl groups per anhydroglucose unit of the cellulose. These deriva- tives are insoluble in water and in acid medium but are soluble in basic aqueous media. They also have been found to be thermo- gelling. The use of these derivatives as coating materials and as shaped objects via forming techniques making use of the ther- mogelling property is disclosed. -1-

219768

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