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 |
US2014018531(A1) |
申请公布日期 |
2014.01.16 |
申请号 |
US201214009430 |
申请日期 |
2012.03.29 |
申请人 |
GOERLACH-DOHT YVONNE M.;HERMANNS JUERGEN;PIERINI PETER E.;DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
GOERLACH-DOHT YVONNE M.;HERMANNS JUERGEN;PIERINI PETER E. |
分类号 |
C08B11/20 |
主分类号 |
C08B11/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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