Title:
【発明の名称】遊離水酸基を持つセルロースエーテルを触媒の添加下にジ-および/またはポリカルボン酸と反応させることによって得られる変性セルロースエーテル並びにそれの製造方法
Document Type and Number:
Japanese Patent JP2003533559
Kind Code:
A
Abstract:
The invention relates to a method for the production of cellulose ethers, whereby cellulose ethers having free hydroxyl groups are reacted with dicarboxylic and/or polycarboxylic acids and a nitrogen-containing compound. The process further comprises intensively mixing essentially dry, pulverulent cellulose ether with a mixture of organic bifunctional and/or polyfunctional acid and nitrogen-containing compound in a non-nucleophilic organic solvent prior to reacting the cellulose ether to provide the modified cellulose ether which can be stirred into water at a pH greater than or equal to 11 without agglutination.
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Inventors:
Hammes Alf
Application Number:
JP2001585201A
Publication Date:
November 11, 2003
Filing Date:
May 11, 2001
Export Citation:
Assignee:
Clariant Gezershyaft Mito Besilyenktel Haftung
International Classes:
C08B11/20; C08B13/00; (IPC1-7): C08B11/20
Attorney, Agent or Firm:
Mitsufumi Ezaki (3 others)