PROCESS FOR PRODUCING HYDROXYALKYL CELLULOSES
    1.
    发明公开
    PROCESS FOR PRODUCING HYDROXYALKYL CELLULOSES 有权
    用于生产羟

    公开(公告)号:EP2928925A1

    公开(公告)日:2015-10-14

    申请号:EP13786762.8

    申请日:2013-10-17

    申请人: Kao Corporation

    IPC分类号: C08B1/00 C08B1/08 C08B11/08

    摘要: The present invention relates to (1) a process for producing a hydroxyalkyl cellulose having an excellent water-solubility while maintaining a high reaction selectivity by adding a basic compound and an alkyleneoxide to a cellulose to conduct a reaction therebetween in which the basic compound is added in a total amount of from 0.3 to 1.5 mol per 1 mol of an anhydroglucose unit in the cellulose, and the alkyleneoxide is added in a total amount of from 1.0 to 3.0 mol per 1 mol of an anhydroglucose unit in the cellulose, the process including a step of adding the basic compound in an amount of from 50 to 95% of the total amount of the basic compound to be added during the process, and then adding the alkyleneoxide in an amount of from 30 to 80% of the total amount of the alkyleneoxide to be added during the process to react the compounds with the cellulose, thereby obtaining a reaction mixture; and a step of adding a remaining amount of the basic compound and a remaining amount of the alkyleneoxide to the reaction mixture obtained in the previous step to conduct a reaction therebetween; (2) a hydroxyalkyl cellulose produced by the process; and (3) a process for producing a cationized hydroxyalkyl cellulose using the resulting hydroxyalkyl cellulose.

    METHOD FOR MANUFACTURING PULVERIZED MATERIAL AND VIBRATING PULVERIZER
    2.
    发明公开
    METHOD FOR MANUFACTURING PULVERIZED MATERIAL AND VIBRATING PULVERIZER 审中-公开
    VERFAHREN ZUR HERSTELLUNG EINESPULVERFÖRMIGEMMATERIALS UND VIBRIERENDE FEINMAHLANLAGE

    公开(公告)号:EP2737954A1

    公开(公告)日:2014-06-04

    申请号:EP12817322.6

    申请日:2012-07-12

    申请人: Kao Corporation

    摘要: According to the present invention, particle diameter of a raw material to be pulverized can be made small within a short period of time. Provided by the invention is a vibration mill which is provided with: a container (1) having therein a columnar space with a central axis of the columnar space being disposed so as to be almost horizontal while the container being held so as to be vibratable in a direction of within a plane that is almost perpendicular to the central axis, a cylindrical medium (2) disposed in the container (1) so as to be vibratable, and a plurality of pulverizing media (3a, 3b) disposed inside the cylindrical medium (2) so as to be vibratable. The ratio of an inner diameter of the cylindrical medium (2) in contacted with the pulverizing medium (3 a, 3b) to an outer diameter of the pulverizing medium (3 a, 3b) (inner diameter of the cylindrical medium (2) in contacted with the pulverizing medium (3a, 3b)/outer diameter of the pulverizing medium (3a, 3b)) is 2.1 or more, and the integrated value of volumes of the pulverizing media (3 a, 3b) relative to a space volume inside the cylindrical medium (2) in contacted with the pulverizing medium (3a, 3b) is more than 25%.

    摘要翻译: 根据本发明,可以在短时间内使被粉碎原料的粒径变小。 本发明提供一种振动研磨机,其具有:容器(1),其中具有柱状空间,柱状空间的中心轴线被设置成几乎水平,同时容器被保持以能够振动 在与中心轴几乎垂直的平面内的方向,设置在容器(1)中以便可振动的圆柱形介质(2)和设置在圆柱形介质内的多个粉碎介质(3a,3b) (2)可振动。 与粉碎介质(3a,3b)接触的圆筒状介质(2)的内径与粉碎介质(3a,3b)的外径(筒状介质(2)的内径)的比例 与粉碎介质(3a,3b)接触/粉碎介质(3a,3b)的外径)为2.1以上,粉碎介质(3a,3b)的体积相对于内部空间容积的积分值 与粉碎介质(3a,3b)接触的圆筒状介质(2)大于25%。

    PROCESS FOR PRODUCING HYDROXYALKYL CELLULOSES

    公开(公告)号:EP2928925B1

    公开(公告)日:2018-06-27

    申请号:EP13786762.8

    申请日:2013-10-17

    申请人: Kao Corporation

    IPC分类号: C08B1/00 C08B1/08 C08B11/08

    摘要: The present invention relates to (1) a process for producing a hydroxyalkyl cellulose having an excellent water-solubility while maintaining a high reaction selectivity by adding a basic compound and an alkyleneoxide to a cellulose to conduct a reaction therebetween in which the basic compound is added in a total amount of from 0.3 to 1.5 mol per 1 mol of an anhydroglucose unit in the cellulose, and the alkyleneoxide is added in a total amount of from 1.0 to 3.0 mol per 1 mol of an anhydroglucose unit in the cellulose, the process including a step of adding the basic compound in an amount of from 50 to 95% of the total amount of the basic compound to be added during the process, and then adding the alkyleneoxide in an amount of from 30 to 80% of the total amount of the alkyleneoxide to be added during the process to react the compounds with the cellulose, thereby obtaining a reaction mixture; and a step of adding a remaining amount of the basic compound and a remaining amount of the alkyleneoxide to the reaction mixture obtained in the previous step to conduct a reaction therebetween; (2) a hydroxyalkyl cellulose produced by the process; and (3) a process for producing a cationized hydroxyalkyl cellulose using the resulting hydroxyalkyl cellulose.