发明名称 PROCESS FOR REDUCING THE AMOUNT OF WATER-INSOLUBLE FIBERS IN A WATER-SOLUBLE CELLULOSE DERIVATIVE
摘要 The amount of water-insoluble fibers in a water-soluble cellulose derivative is reduced in a process comprising the steps of a) providing a water-soluble cellulose derivative having a residual amount of at least 20 ppm by weight of water-insoluble fibers in a 2 weight percent aqueous solution of the water-soluble cellulose derivative; b) mixing the water-soluble cellulose derivative of step a) with a liquid in a compounder to provide a moist water-soluble cellulose derivative having a temperature of at least 50 C and a moisture content of from 35 to 90 percent, based on the total weight of the moist cellulose derivative; and c) drying-grinding the mixture of step b) in a gas-swept impact mill to obtain a dried and ground cellulose derivative.
申请公布号 WO2012138531(A1) 申请公布日期 2012.10.11
申请号 WO2012US31108 申请日期 2012.03.29
申请人 DOW GLOBAL TECHNOLOGIES LLC;GOERLACH-DOHT, YVONNE M.;HERMANNS, JUERGEN;PIERINI, PETER E. 发明人 GOERLACH-DOHT, YVONNE M.;HERMANNS, JUERGEN;PIERINI, PETER E.
分类号 C08B11/20;C08J3/12 主分类号 C08B11/20
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