Water soluble cellulose ethers

Details Water soluble cellulose ethers Water soluble cellulose ethers

C - Chemistry, Metallurgy

08

B

260/217

C08B 13/00 (2006.01) C08B 11/20 (2006.01)

Patent

CA 1039272

METHOD OF DISSOLVING CELLULOSE ETHERS IN HIGH BASIC MEDIA ABSTRACT OF THE DISCLOSURE Dispersibility of cellulose ethers containing hydroxy- ethyl groups is improved at high pH levels by treating the cellulose ether in particulate form with a solution of boric acid or a borate and thereafter drying the treated ether. Upon addition of this ether to a high pH aqueous system, for example, Portland cement, the ether dissolves readily without formation of lumps and without unduly long hydration time. - 1 -

233066

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