Process for the preparation of cellulose ethers from...

Details Process for the preparation of cellulose ethers from... Process for the preparation of cellulose ethers from...

C - Chemistry, Metallurgy

08

B

260/217

C08B 11/04 (2006.01) C08B 1/08 (2006.01) C08B 11/00 (2006.01)

Patent

CA 1194863

ABSTRACT OF THE DISCLOSURE A process is disclosed for the preparation of water-soluble cellulose ethers, comprising the steps of activating cellulose with ammonia, alkalizing the activated cellulose, and etherifying the alkali cellulose. In the process, the activated cellulose is alkalized in the presence of ammonia and, optionally, in the presence of an organic solvent, and the ammonia is removed from the alkali cellulose in the presence of the alkalizing agent and, optionally, the organic solvent. Etherification proceeds in a medium which contains at least portions of said organic solvent. The organic solvent comprises, in particular, an alkanol which has from 1 to 6 carbon atoms. For the etherifi- cation step, carboxymethylation or hydroxyethylation is preferred.

439735

Affiliated with

Also associated with

Rating

Process for the preparation of cellulose ethers from... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of cellulose ethers from..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of cellulose ethers from... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1242586