HIGH SOLIDS CONTENT CELLULOSE ETHER SOLUTION
The present invention relates to a method for producing a cellulose ether solution, the method comprising the following steps:a) preparing an aqueous solution comprising at least one low molecular weight cellulose ether having a weight average molecular weight of less than 30kDa; andb) dissolving at...
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| creator | VESANEN, Kimmo, Kalevi AHTIKARI, Jaana, Mirjami RUTANEN, Anne, Irmeli KANNIAINEN, Marko, Juhani |
| description | The present invention relates to a method for producing a cellulose ether solution, the method comprising the following steps:a) preparing an aqueous solution comprising at least one low molecular weight cellulose ether having a weight average molecular weight of less than 30kDa; andb) dissolving at least one high molecular weight cellulose ether having a weight average molecular weight of at least 30kDa into the solution of step a), wherein the at least one high molecular weight cellulose ether is added as a solid (preferably as a powder) to the solution of step a),wherein the amount of low and high molecular weight cellulose ether added in steps a) and b), respectively, is such that the total amount of cellulose ether in the solution is at least 18 wt.% (relative to the total weight of the cellulose ether solution). |
| format | Patent |
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andb) dissolving at least one high molecular weight cellulose ether having a weight average molecular weight of at least 30kDa into the solution of step a), wherein the at least one high molecular weight cellulose ether is added as a solid (preferably as a powder) to the solution of step a),wherein the amount of low and high molecular weight cellulose ether added in steps a) and b), respectively, is such that the total amount of cellulose ether in the solution is at least 18 wt.% (relative to the total weight of the cellulose ether solution).</description><language>eng ; fre ; ger</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; GENERAL PROCESSES OF COMPOUNDING ; IMPREGNATING OR COATING OF PAPER ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; 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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING IMPREGNATING OR COATING OF PAPER METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G WORKING-UP |
| title | HIGH SOLIDS CONTENT CELLULOSE ETHER SOLUTION |
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