公开(公告)号：US06817557B2

公开(公告)日：2004-11-16

申请号：US09753677

申请日：2001-01-04

申请人： Hiroyuki Kakita ,  Tatsuo Maruo ,  Takumi Hatsuda ,  Yoshio Irie

发明人： Hiroyuki Kakita ,  Tatsuo Maruo ,  Takumi Hatsuda ,  Yoshio Irie

IPC分类号： B02C1912

CPC分类号： C08J3/12 ,  C08J2300/14

摘要： The present invention provides: a process for treating a particulate water-absorbent resin, which enables to carry out pulverization stably in a process for producing a particulate water-absorbent resin, and transportation or storage of the particulate water-absorbent resin stably during or after producing the particulate water-absorbent resin, and to prevent contamination of cohered matters of the particulate water-absorbent resin; and involves no or little deterioration of properties. The process for treating a particulate water-absorbent resin is characterized by carrying out at least one selected from the group consisting of: (1) heating at least one portion of a surface getting contact with the particulate water-absorbent resin from the outside, (2) maintaining the temperature of at least one portion of a surface getting contact with the particulate water-absorbent resin at 30 to 150° C., and (3) maintaining the temperature of at least one portion of a surface getting contact with the particulate water-absorbent resin above a temperature that is lower than a temperature of the particulate water-absorbent resin by 20° C.

摘要翻译： 本发明提供一种处理颗粒状吸水性树脂的方法，其能够在颗粒状吸水性树脂的制造工序中稳定地进行粉碎，并且在颗粒状吸水性树脂中或之后稳定地输送或储存 生产颗粒状吸水性树脂，并且防止颗粒状吸水性树脂的粘附物质的污染; 并且没有或几乎没有劣化的性质。 颗粒状吸水性树脂的处理方法的特征在于，进行选自以下的至少一种：（1）从外部加热与颗粒状吸水性树脂接触的表面的至少一部分（ 2）保持表面的至少一部分的温度在30至150℃下与颗粒状吸水性树脂接触，和（3）保持表面的至少一部分的温度与颗粒接触的温度 吸水性树脂高于比颗粒状吸水性树脂的温度低20℃的温度

公开(公告)号：US6164455A

公开(公告)日：2000-12-26

申请号：US9458

申请日：1998-01-20

申请人： Hiroyuki Kakita ,  Tatsuo Maruo ,  Sumio Okuda ,  Takumi Hatsuda

发明人： Hiroyuki Kakita ,  Tatsuo Maruo ,  Sumio Okuda ,  Takumi Hatsuda

IPC分类号： B07B1/00 ,  B07B1/56 ,  B07B1/46

CPC分类号： B07B1/00 ,  B07B1/56

摘要： The present invention provides a process for classifying a particulate hydrophilic polymer and a sieving device, which can carry out a classification in a small separation particle diameter with high efficiency and exhibit classification ability inherent in the sieving device. The process comprises the step of classifying a particulate hydrophilic polymer in dry particle size with a sieving device, wherein the sieving device is used in a heated and/or thermally insulated state. The sieving device comprises a thermally insulating means.

摘要翻译： 本发明提供一种用于分级粒状亲水性聚合物和筛分装置的方法，其可以高效率地以小分离粒径进行分级，并显示筛分装置固有的分类能力。 该方法包括用筛分装置对干颗粒状颗粒状亲水聚合物进行分级的步骤，其中筛分装置以加热和/或隔热状态使用。 筛分装置包括隔热装置。