公开(公告)号：US20060173088A1

公开(公告)日：2006-08-03

申请号：US10564052

申请日：2004-07-16

申请人： Shigeyuki Nozaki ,  Daisuke Imai ,  Satoshi Yamada ,  Shuichi Toriya ,  Hidekazu Kozuki ,  Masaru Ishikawa

发明人： Shigeyuki Nozaki ,  Daisuke Imai ,  Satoshi Yamada ,  Shuichi Toriya ,  Hidekazu Kozuki ,  Masaru Ishikawa

IPC分类号： C08J9/00

CPC分类号： C08J9/30 ,  C08F2/10

摘要： A method for efficient production of a water-soluble porous polymer and a water-soluble porous polymer excelling in solubility in water are provided. A method for the production of the polymer is characterized by the fact that an aqueous monomer solution containing an ethylenically unsaturated monomer is polymerized while it is containing bubbles therein. The method can simplify the drying and crushing steps and the water-soluble porous polymer consequently obtained excels in solubility in water.

摘要翻译： 提供了一种有效生产水溶性多孔聚合物和在水中溶解度优异的水溶性多孔聚合物的方法。 聚合物的制造方法的特征在于，含有烯属不饱和单体的单体水溶液在其内含有气泡的同时聚合。 该方法可以简化干燥和粉碎步骤，因此得到的水溶性多孔聚合物在水中的溶解度优异。

公开(公告)号：US09096516B2

公开(公告)日：2015-08-04

申请号：US13109450

申请日：2011-05-17

申请人： Hideto Sugiura ,  Toru Inaoka ,  Shigeyuki Nozaki ,  Yoshihisa Oka

发明人： Hideto Sugiura ,  Toru Inaoka ,  Shigeyuki Nozaki ,  Yoshihisa Oka

IPC分类号： C07D201/16 ,  B01D9/00 ,  C07D207/267

CPC分类号： C07D207/267 ,  B01D9/0059 ,  C07D201/16

摘要： A method for producing N-vinyl-2-pyrrolidone by crystallization including: controlling a water content in a feed N-vinyl-2-pyrrolidone solution at an inlet of a crystallizer so as to be not lower than 0.7% by weight and not higher than 10% by weight based on the total weight of the N-vinyl-2-pyrrolidone solution; and supplying the feed N-vinyl-2-pyrrolidone solution to a crystallization process.

摘要翻译： 通过结晶生产N-乙烯基-2-吡咯烷酮的方法包括：将结晶器入口处的进料N-乙烯基-2-吡咯烷酮溶液中的水含量控制在不低于0.7重量％且不高于 基于N-乙烯基-2-吡咯烷酮溶液的总重量的10重量％以上; 并将进料N-乙烯基-2-吡咯烷酮溶液供给至结晶过程。

公开(公告)号：US20110218344A1

公开(公告)日：2011-09-08

申请号：US13109450

申请日：2011-05-17

申请人： Hideto SUGIURA ,  Toru Inaoka ,  Shigeyuki Nozaki ,  Yoshihisa Oka

发明人： Hideto SUGIURA ,  Toru Inaoka ,  Shigeyuki Nozaki ,  Yoshihisa Oka

IPC分类号： C07D207/273

CPC分类号： C07D207/267 ,  B01D9/0059 ,  C07D201/16

摘要： A method for producing N-vinyl-2-pyrrolidone by crystallization including: controlling a water content in a feed N-vinyl-2-pyrrolidone solution at an inlet of a crystallizer so as to be not lower than 0.7% by weight and not higher than 10% by weight based on the total weight of the N-vinyl-2-pyrrolidone solution; and supplying the feed N-vinyl-2-pyrrolidone solution to a crystallization process.

摘要翻译： 通过结晶生产N-乙烯基-2-吡咯烷酮的方法包括：将结晶器入口处的进料N-乙烯基-2-吡咯烷酮溶液中的水含量控制在不低于0.7重量％且不高于 基于N-乙烯基-2-吡咯烷酮溶液的总重量的10重量％以上; 并将进料N-乙烯基-2-吡咯烷酮溶液供给至结晶过程。

公开(公告)号：US20090088579A1

公开(公告)日：2009-04-02

申请号：US11918228

申请日：2006-04-07

申请人： Hideto Sugiura ,  Toru Inaoka ,  Shigeyuki Nozaki ,  Yoshihisa Oka

发明人： Hideto Sugiura ,  Toru Inaoka ,  Shigeyuki Nozaki ,  Yoshihisa Oka

IPC分类号： C07D207/267

CPC分类号： C07D207/267 ,  B01D9/0059 ,  C07D201/16

摘要： High-purity NVP can be produced by comprising at least two crystallization processes and supplying the mother liquor from the first crystallization process to the second crystallization process.Further, high-purity NVP can be obtained continuously and stably without plugging caused by depositing of crystals on the heat transfer surface of a crystallizer by controlling the water content in a feed NVP solution at the inlet of the crystallizer so as to be not lower than 0.7% by weight and not higher than 10% by weight.

摘要翻译： 可以通过包含至少两个结晶过程并将母液从第一结晶过程提供到第二结晶过程来生产高纯度NVP。 此外，通过控制结晶器入口处的进料NVP溶液中的水分含量，可以连续且稳定地获得高纯度NVP，而不会在结晶器的传热表面上沉积晶体而导致堵塞，从而不低于 0.7重量％且不高于10重量％。