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公开(公告)号：DE69723577T2
公开(公告)日：2004-05-13
申请号：DE69723577
申请日：1997-12-22
Applicant: KAO CORP
Inventor： SHIMOKAWA KEISHI , IMAKI TAKUYA , SHIDA JUN , NOJIRI NAOKI , HIRAMATSU SHINOBU
Abstract: To provide a method for purification of the ionic polymer compound comprising efficiently removing low-molecular impurities, for example, ionic remaining monomers, which are charged identically to the ionic polymer compound from the ionic polymer compound in a shorter period of time. A method for purification of an ionic polymer compound, characterized by removing low-molecular impurities, such as ionic remaining monomers, by the use of an ultrafiltration membrane and/or a reverse osmosis membrane from an aqueous solution containing the ionic polymer compound and low-molecular impurities which are charged identically to the ionic polymer compound, under conditions that a concentration of the ionic polymer compound is from 7 to 20% by weight, and that an amount of charges of the ionic polymer compound in the aqueous solution is 0.30 gram-equivalent/liter or more.
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公开(公告)号：AU2002354065A1
公开(公告)日：2003-07-24
申请号：AU2002354065
申请日：2002-11-28
Applicant: KAO CORP
Inventor： TAMAKI SEIJI , KAMEI KOUJI , OOSAKI KAZUTOMO , NAITOU KAZUKI , KANO KENJI , YOSHIMURA TADANORI , TANAKA NOBUSHIGE , HIRAMATSU SHINOBU
Abstract: A process for preparing a carboxylic acid-based polymer comprising the steps of (A) a first polymerization reaction step comprising introducing an aqueous solution of monomers containing an alpha -unsaturated carboxylic acid or a salt thereof, an aqueous solution containing a hydrogensulfite, and a gas containing oxygen into a flow mixer to polymerize the monomers; and (B) a second polymerization reaction step comprising further polymerizing a reaction product containing the unreacted monomer obtained in the first polymerization reaction step. There can be stably and productively prepared a carboxylic acid-based polymer having a high quality with suppressed coloration and containing a reduced amount of impurities even if the amount of gas containing oxygen used in the initiation of the polymerization reaction is remarkably reduced.
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公开(公告)号：DE60219210D1
公开(公告)日：2007-05-10
申请号：DE60219210
申请日：2002-11-28
Applicant: KAO CORP
Inventor： TAMAKI SEIJI , KAMEI KOUJI , OSAKI KAZUTOMO , NAITOU KAZUKI , KANO KENJI , YOSHIMURA TADANORI , TANAKA NOBUSHIGE , HIRAMATSU SHINOBU
Abstract: A process for preparing a carboxylic acid-based polymer comprising the steps of (A) a first polymerization reaction step comprising introducing an aqueous solution of monomers containing an alpha -unsaturated carboxylic acid or a salt thereof, an aqueous solution containing a hydrogensulfite, and a gas containing oxygen into a flow mixer to polymerize the monomers; and (B) a second polymerization reaction step comprising further polymerizing a reaction product containing the unreacted monomer obtained in the first polymerization reaction step. There can be stably and productively prepared a carboxylic acid-based polymer having a high quality with suppressed coloration and containing a reduced amount of impurities even if the amount of gas containing oxygen used in the initiation of the polymerization reaction is remarkably reduced.
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公开(公告)号：DE60219210T2
公开(公告)日：2008-01-24
申请号：DE60219210
申请日：2002-11-28
Applicant: KAO CORP
Inventor： TAMAKI SEIJI , KAMEI KOUJI , OSAKI KAZUTOMO , NAITOU KAZUKI , KANO KENJI , YOSHIMURA TADANORI , TANAKA NOBUSHIGE , HIRAMATSU SHINOBU
Abstract: A process for preparing a carboxylic acid-based polymer comprising the steps of (A) a first polymerization reaction step comprising introducing an aqueous solution of monomers containing an alpha -unsaturated carboxylic acid or a salt thereof, an aqueous solution containing a hydrogensulfite, and a gas containing oxygen into a flow mixer to polymerize the monomers; and (B) a second polymerization reaction step comprising further polymerizing a reaction product containing the unreacted monomer obtained in the first polymerization reaction step. There can be stably and productively prepared a carboxylic acid-based polymer having a high quality with suppressed coloration and containing a reduced amount of impurities even if the amount of gas containing oxygen used in the initiation of the polymerization reaction is remarkably reduced.
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公开(公告)号：DE69723577D1
公开(公告)日：2003-08-21
申请号：DE69723577
申请日：1997-12-22
Applicant: KAO CORP
Inventor： SHIMOKAWA KEISHI , IMAKI TAKUYA , SHIDA JUN , NOJIRI NAOKI , HIRAMATSU SHINOBU
Abstract: To provide a method for purification of the ionic polymer compound comprising efficiently removing low-molecular impurities, for example, ionic remaining monomers, which are charged identically to the ionic polymer compound from the ionic polymer compound in a shorter period of time. A method for purification of an ionic polymer compound, characterized by removing low-molecular impurities, such as ionic remaining monomers, by the use of an ultrafiltration membrane and/or a reverse osmosis membrane from an aqueous solution containing the ionic polymer compound and low-molecular impurities which are charged identically to the ionic polymer compound, under conditions that a concentration of the ionic polymer compound is from 7 to 20% by weight, and that an amount of charges of the ionic polymer compound in the aqueous solution is 0.30 gram-equivalent/liter or more.
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Patent Agency Ranking
公开(公告)号：EP1466927A4
公开(公告)日：2006-06-28
申请号：EP02785953
申请日：2002-11-28
Applicant: KAO CORP
Inventor： TAMAKI SEIJI , KAMEI KOUJI , OSAKI KAZUTOMO , NAITOU KAZUKI , KANO KENJI , YOSHIMURA TADANORI , TANAKA NOBUSHIGE , HIRAMATSU SHINOBU
CPC classification number: B01J19/1837 , B01F13/1027 , B01F13/103 , B01F2015/0221 , B01J19/0066 , B01J19/1806 , B01J2219/00006 , B01J2219/00094 , C08F20/04
Abstract: A process for production of carboxylic acid polymers which comprises the first polymerization step (A) of introducing an aqueous monomer solution containing an α-unsaturated carboxylic acid or a salt thereof, an aqueous solution containing a hydrogensulfite salt, and an oxygen-containing gas into a flow mixer and polymerizing the monomer and the second polymerization step (B) of subjecting the reaction product of the first polymerization step containing unreacted monomer to additional polymerization. Even when the amount of an oxygen-containing gas used in initiating the polymerization is extremely reduced, high-quality carboxylic acid polymers which are little discolored and little contain impurities can be produced at high productivity.
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公开(公告)号：EP0949275A4
公开(公告)日：2000-08-09
申请号：EP97949221
申请日：1997-12-22
Applicant: KAO CORP
Inventor： SHIMOKAWA KEISHI , IMAKI TAKUYA , SHIDA JUN , NOJIRI NAOKI , HIRAMATSU SHINOBU
CPC classification number: C08F6/003 , Y10S210/908
Abstract: To provide a method for purification of the ionic polymer compound comprising efficiently removing low-molecular impurities, for example, ionic remaining monomers, which are charged identically to the ionic polymer compound from the ionic polymer compound in a shorter period of time. A method for purification of an ionic polymer compound, characterized by removing low-molecular impurities, such as ionic remaining monomers, by the use of an ultrafiltration membrane and/or a reverse osmosis membrane from an aqueous solution containing the ionic polymer compound and low-molecular impurities which are charged identically to the ionic polymer compound, under conditions that a concentration of the ionic polymer compound is from 7 to 20% by weight, and that an amount of charges of the ionic polymer compound in the aqueous solution is 0.30 gram-equivalent/liter or more.
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公开(公告)号：JP2008179759A
公开(公告)日：2008-08-07
申请号：JP2007177109
申请日：2007-07-05
Inventor： KURATA MINORU , SHIMOKAWA YOSHIFUMI , HIRAMATSU SHINOBU
Abstract: PROBLEM TO BE SOLVED: To provide a production method of a water-absorbing polymer with high water-absorbing ability, by controlling average diameter and particle size distribution, and to provide a control method of the particle diameter of the water-absorbing polymer.
SOLUTION: The production method of a water-absorbing polymer comprises polymerizing monomer components including water-soluble vinyl monomer, wherein, 1-30 wt.% initial charge monomer components of the whole polymerization monomer components and 0-0.005 wt.% polymerization initiator based on the initial charge monomer components are supplied in a hydrophobic organic solvent in a reactor vessel, and then the residual monomer components and 0.01-10 wt.% polymerization initiator based on the residual monomer components are continuously or intermittently supplied to the reactor vessel. The control method of the particle diameter of the water-absorbing polymer comprises controlling the weight-basis median diameter of the water-absorbing polymer to be 200-600 μm by the production method.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：通过控制平均直径和粒径分布，提供具有高吸水能力的吸水性聚合物的制造方法，提供吸水性粒径的控制方法 聚合物。 吸水聚合物的制备方法包括聚合包括水溶性乙烯基单体的单体组分，其中1-30重量％的整个聚合单体组分的初始电荷单体组分和0-0.005重量％ 基于初始电荷单体组分的聚合引发剂在反应器容器中的疏水性有机溶剂中供给，然后将剩余单体组分和基于残余单体组分的0.01-10重量％聚合引发剂连续或间歇地供给到反应器 船只。 吸水性聚合物的粒径的控制方法包括通过制造方法控制吸水性聚合物的重均中值粒径为200〜600μm。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2005068279A
公开(公告)日：2005-03-17
申请号：JP2003299090
申请日：2003-08-22
Inventor： MATSUYAMA KAZUO , HIRAMATSU SHINOBU
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing an acrylic resin, capable of polymerizing a monomer efficiently and producing an acrylic resin such as a water absorptive resin with good productivity.
SOLUTION: The manufacturing method of the acrylic resin comprises irradiating UV to a monomer aqueous solution containing a water-soluble acrylic monomer, a peroxide and a transition metal ion and polymerizing the water-soluble acrylic monomer. In particular, a preferred method comprises preparing the monomer aqueous solution by mixing the water-soluble acrylic monomer, the peroxide, water and a ferric salt, and polymerizing it.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 解决的问题：提供能够有效聚合单体的丙烯酸树脂的制造方法，并且以高生产率制造吸水树脂等丙烯酸树脂。 解决方案：丙烯酸树脂的制造方法包括将UV照射到含有水溶性丙烯酸单体，过氧化物和过渡金属离子的单体水溶液中，并使水溶性丙烯酸单体聚合。 特别地，优选的方法包括通过混合水溶性丙烯酸单体，过氧化物，水和铁盐来制备单体水溶液并使其聚合。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2006307005A
公开(公告)日：2006-11-09
申请号：JP2005131338
申请日：2005-04-28
Inventor： SHIMADA TOSHIYA , HIRAMATSU SHINOBU
IPC: C08J3/20 , A61K8/00 , A61K8/19 , A61K8/72 , A61Q17/04 , C08J3/12 , C08K3/22 , C08L23/00 , C08L101/00
Abstract: PROBLEM TO BE SOLVED: To provide a method for uniformly dispersing zinc oxide in a thermoplastic resin and to provide a method for producing composite particles having high transparency and ultraviolet screening properties in combination.
SOLUTION: The method for dispersing the zinc oxide in the thermoplastic resin comprises mixing the zinc oxide with the thermoplastic resin in a molten state and dispersing the zinc oxide in the thermoplastic resin with a vibrating type stirrer. The method for producing the composite particles comprises dispersing the zinc oxide in the thermoplastic resin by the method for dispersing, spraying the resultant hot-melt mixture into a refrigerant at a temperature not lower than the temperature below the melting point of the thermoplastic resin by 10°C, cooling and solidifying the mixture.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：提供一种将氧化锌均匀分散在热塑性树脂中的方法，并提供组合具有高透明度和紫外线屏蔽性的复合颗粒的方法。 解决方案：将氧化锌分散在热塑性树脂中的方法包括将氧化锌与熔融状态的热塑性树脂混合，并用振动型搅拌器将氧化锌分散在热塑性树脂中。 复合粒子的制造方法包括：将热塑性树脂中的氧化锌分散，在不低于热塑性树脂的熔点以下的温度的温度下分散喷雾所得热熔混合物至制冷剂中10分钟 ℃，冷却并固化混合物。 版权所有（C）2007，JPO＆INPIT
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