发明名称 |
冷水中で高い嵩密度、良好な流動性、および/または分散性、ならびに低い溶液色を有するセルロース誘導体の製造方法 |
摘要 |
A particulate cellulose derivative is obtained in a process of grinding and drying a moist cellulose derivative which comprises the steps of A) providing a cellulose derivative having a moisture content of from 60 to 95 percent, based on the total weight of the moist cellulose derivative; B) grinding and partially drying the moist cellulose derivative in a gas-swept impact mill; C) contacting the ground and partially dried cellulose derivative with an additional amount of a drying gas outside the gas-swept impact mill; and D) subjecting the cellulose derivative to partial depolymerization after having contacted the cellulose derivative with a drying gas in step C). The obtained particulate cellulose derivative has a high untapped bulk density, a good flowability and a low color intensity. |
申请公布号 |
JP6039812(B2) |
申请公布日期 |
2016.12.07 |
申请号 |
JP20150531346 |
申请日期 |
2013.09.23 |
申请人 |
ダウ グローバル テクノロジーズ エルエルシー |
发明人 |
イヴォンヌ・エム・ゲルラッハ−ドート;ユルゲン・ヘルマンス;ベッティーナ・ホルザー |
分类号 |
C08B11/08;C08J3/12;C08K3/20;C08L1/08 |
主分类号 |
C08B11/08 |
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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