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1. 发明申请

US20090305884A1 Method for Producing Water Absorbent Resin Particle 有权
标题翻译：生产吸水树脂颗粒的方法
公开(公告)号：US20090305884A1
公开(公告)日：2009-12-10
申请号：US12296808
申请日：2007-09-28
申请人： Shigeru Sakamoto , Yoshio Irie , Hiroyuki Ikeuchi , Makoto Nagasawa , Kunihiko Ishizaki , Sayaka Machida
发明人： Shigeru Sakamoto , Yoshio Irie , Hiroyuki Ikeuchi , Makoto Nagasawa , Kunihiko Ishizaki , Sayaka Machida
IPC分类号： B01J20/26
CPC分类号： C08J3/12 , B29B9/06 , B29B17/00 , C08J2300/14 , Y02W30/62
摘要： The present invention provides a method for producing a water absorbent resin particle, in high productivity, not only in a controlled manner of particle size but also enhancing fundamental property (absorption capacity or absorption capacity against pressure) of a water absorbent resin. A method for producing a water absorbent resin particle having the cross-linking polymerization step for an aqueous solution of an unsaturated monomer; the grain refining step for water-swellable, water-containing gel-like cross-linked polymer (a) obtained in the cross-linking polymerization step; the drying step for grain refined gel; and the crushing step for a dried substance, wherein, in the grain refining step for the water-swellable, water-containing gel-like cross-linked polymer (a), water-swellable, water-containing gel-like cross-linked polymer (b), having solid content or centrifuge retention capacity different from solid content or centrifuge retention capacity of the cross-linked polymer (a) by equal to or larger than 1%, is subjected to coexistence.
摘要翻译：本发明提供了一种生产吸水性树脂颗粒的方法，不仅以受控的粒度控制，而且提高了吸水性树脂的基本性能（吸收能力或抗吸收能力）。一种制备具有用于不饱和单体的水溶液的交联聚合步骤的吸水性树脂颗粒的方法; 在交联聚合步骤中获得的水溶胀性含水凝胶状交联聚合物（a）的晶粒细化步骤; 颗粒精制凝胶的干燥步骤; 和干物质的破碎步骤，其中在水溶胀性含水凝胶状交联聚合物（a）的晶粒细化工序中，水溶胀性含水凝胶状交联聚合物（b）具有不同于交联聚合物（a）的固体含量或离心保留能力等于或大于1％的固体含量或离心保留能力共存。

2. 发明授权

US09593212B2 Method for producing water absorbent resin particle 有权
标题翻译：吸水性树脂颗粒的制造方法
公开(公告)号：US09593212B2
公开(公告)日：2017-03-14
申请号：US12296808
申请日：2007-09-28
申请人： Shigeru Sakamoto , Yoshio Irie , Hiroyuki Ikeuchi , Makoto Nagasawa , Kunihiko Ishizaki , Sayaka Machida
发明人： Shigeru Sakamoto , Yoshio Irie , Hiroyuki Ikeuchi , Makoto Nagasawa , Kunihiko Ishizaki , Sayaka Machida
IPC分类号： C08J3/12 , B29B17/00
CPC分类号： C08J3/12 , B29B9/06 , B29B17/00 , C08J2300/14 , Y02W30/62
摘要： The present invention provides a method for producing a water absorbent resin particle, in high productivity, not only in a controlled manner of particle size but also enhancing fundamental property (absorption capacity or absorption capacity against pressure) of a water absorbent resin. A method for producing a water absorbent resin particle having the cross-linking polymerization step for an aqueous solution of an unsaturated monomer; the grain refining step for water-swellable, water-containing gel-like cross-linked polymer (a) obtained in the cross-linking polymerization step; the drying step for grain refined gel; and the crushing step for a dried substance, wherein, in the grain refining step for the water-swellable, water-containing gel-like cross-linked polymer (a), water-swellable, water-containing gel-like cross-linked polymer (b), having solid content or centrifuge retention capacity different from solid content or centrifuge retention capacity of the cross-linked polymer (a) by equal to or larger than 1%, is subjected to coexistence.
摘要翻译：本发明提供了一种生产吸水性树脂颗粒的方法，不仅以受控的粒度控制，而且提高了吸水性树脂的基本性能（吸收能力或抗吸收能力）。一种制备具有用于不饱和单体的水溶液的交联聚合步骤的吸水性树脂颗粒的方法; 在交联聚合步骤中获得的水溶胀性含水凝胶状交联聚合物（a）的晶粒细化步骤; 颗粒精制凝胶的干燥步骤; 和干物质的破碎步骤，其中在水溶胀性含水凝胶状交联聚合物（a）的晶粒细化工序中，水溶胀性含水凝胶状交联聚合物（b）具有不同于交联聚合物（a）的固体含量或离心保留能力等于或大于1％的固体含量或离心保留能力共存。

3. 发明申请

US20120220745A1 PRODUCTION METHOD FOR WATER-ABSORBING RESIN POWDER 有权
标题翻译：吸水树脂粉的生产方法
公开(公告)号：US20120220745A1
公开(公告)日：2012-08-30
申请号：US13496440
申请日：2010-09-16
申请人： Sayaka Machida , Kazushi Torii , Yoko Shirai , Hiroyuki Ikeuchi , Kunihiko Ishizaki
发明人： Sayaka Machida , Kazushi Torii , Yoko Shirai , Hiroyuki Ikeuchi , Kunihiko Ishizaki
IPC分类号： C08F20/06
CPC分类号： C08J3/28 , C08F220/06 , C08F222/1006 , C08J3/122 , C08J3/245 , C08J2300/00
摘要： [PROBLEM]It is an object of the present invention to enhance and stabilize properties of a water-absorbing resin, for example, damage resistance or water-absorbing speed, by a simple and convenient method without requiring change of raw materials or expensive facility investment, in a large scale production method for the water-absorbing resin.[MEANS FOR SOLVING THE PROBLEM]It is solved by circulation of the water-absorbing resin in a predetermined amount or more in the pulverization step before the surface cross-linking step. That is, at least a part of the classified polymer is supplied again to the same or different pulverization step, before the surface cross-linking step, wherein circulation pulverization ratio in the pulverization step, represented by the following equation is larger than 1.50: (Circulation pulverization ratio)=(total supply amount of the water-absorbing resin to the pulverization step)/(total discharge amount of the water-absorbing resin at the drying step) (wherein total supply amount of the water-absorbing resin to the pulverization step)=(total discharge amount of the water-absorbing resin at the drying step)+(amount of the classified polymer supplied again to the same or different pulverization step)).
摘要翻译：本发明的目的是通过简单方便的方法来增强和稳定吸水树脂的性能，例如耐损伤性或吸水速度，而不需要改变原料或昂贵的设备投资在大量的吸水树脂的制造方法中。解决问题的手段通过在表面交联工序之前的粉碎工序中使吸水性树脂循环一定量以上来解决。也就是说，在表面交联步骤之前，将分类的聚合物的至少一部分再次供给到相同或不同的粉碎步骤，其中由下式表示的粉碎步骤中的循环粉碎比大于1.50：（循环粉碎比）=（粉碎步骤中的吸水性树脂的总供给量）/（干燥工序中的吸水性树脂的总排出量）（其中，吸水性树脂与粉碎的总供给量步骤）=（干燥步骤中的吸水性树脂的总排出量）+（再次供给相同或不同的粉碎步骤的分类聚合物的量））。

4. 发明授权

US08513378B2 Production method for water-absorbing resin powder 有权
标题翻译：吸水树脂粉的生产方法
公开(公告)号：US08513378B2
公开(公告)日：2013-08-20
申请号：US13496440
申请日：2010-09-16
申请人： Sayaka Machida , Kazushi Torii , Yoko Shirai , Hiroyuki Ikeuchi , Kunihiko Ishizaki
发明人： Sayaka Machida , Kazushi Torii , Yoko Shirai , Hiroyuki Ikeuchi , Kunihiko Ishizaki
IPC分类号： C08G64/00 , C08G63/02
CPC分类号： C08J3/28 , C08F220/06 , C08F222/1006 , C08J3/122 , C08J3/245 , C08J2300/00
摘要： The present invention provides a method for producing a water-absorbing resin powder. The method includes a polymerization step, a drying step, a pulverization step, a classification step, and a surface cross-linking step. It further includes an additional step, performed before the surface cross-linking step, in which at least part of the classified polymer is supplied again to the same or a different pulverization step. The circulation pulverization ratio in the pulverization step is higher than 1.50.
摘要翻译：本发明提供一种吸水性树脂粉末的制造方法。该方法包括聚合步骤，干燥步骤，粉碎步骤，分级步骤和表面交联步骤。其还包括在表面交联步骤之前进行的另外的步骤，其中将至少部分分类的聚合物再次供应到相同或不同的粉碎步骤。粉碎步骤中的循环粉碎比高于1.50。

5. 发明申请

US20120220733A1 PRODUCTION METHOD FOR WATER-ABSORBING RESIN POWDER 有权
标题翻译：吸水树脂粉的生产方法
公开(公告)号：US20120220733A1
公开(公告)日：2012-08-30
申请号：US13395912
申请日：2010-09-16
申请人： Sayaka Machida , Kazushi Torii , Yoko Shirai , Hiroyuki Ikeuchi , Kunihiko Ishizaki
发明人： Sayaka Machida , Kazushi Torii , Yoko Shirai , Hiroyuki Ikeuchi , Kunihiko Ishizaki
IPC分类号： C08F120/06 , C08F2/10 , C08F6/12
CPC分类号： C08J3/28 , C08F220/06 , C08F222/1006 , C08J3/122 , C08J3/245 , C08J2300/00
摘要： [PROBLEM]It is an object of the present invention to enhance and stabilize properties of a water-absorbing resin, for example, damage resistance or water-absorbing speed, by a simple and convenient method without requiring change of raw materials or expensive facility investment, in a large scale production method for the water-absorbing resin.[MEANS FOR SOLVING THE PROBLEM]It is solved by circulation of the water-absorbing resin in a predetermined amount or more in the pulverization step before the surface cross-linking step. That is, at least a part of the classified polymer is supplied again to the same or different pulverization step, before the surface cross-linking step, wherein circulation pulverization ratio in the pulverization step, represented by the following equation is 1.10 to 1.50: (Circulation pulverization ratio)=(total supply amount of the water-absorbing resin to the pulverization step)/(total discharge amount of the water-absorbing resin at the drying step) (wherein total supply amount of the water-absorbing resin to the pulverization step)=(total discharge amount of the water-absorbing resin at the drying step)+(amount of the classified polymer supplied again to the same or different pulverization step)).
摘要翻译：本发明的目的是通过简单方便的方法来增强和稳定吸水树脂的性能，例如耐损伤性或吸水速度，而不需要改变原料或昂贵的设备投资在大量的吸水树脂的制造方法中。解决问题的手段通过在表面交联工序之前的粉碎工序中使吸水性树脂循环一定量以上来解决。也就是说，在表面交联步骤之前，将分类的聚合物的至少一部分再次供给到相同或不同的粉碎步骤，其中由下式表示的粉碎步骤中的循环粉碎比为1.10至1.50：（循环粉碎比）=（粉碎步骤中的吸水性树脂的总供给量）/（干燥工序中的吸水性树脂的总排出量）（其中，吸水性树脂与粉碎的总供给量步骤）=（干燥步骤中的吸水性树脂的总排出量）+（再次供给相同或不同的粉碎步骤的分类聚合物的量））。

6. 发明授权

US09309375B2 Water-absorbing agent having water-absorbent resin as a main component and production method of the water-absorbing agent 有权
公开(公告)号：US09309375B2
公开(公告)日：2016-04-12
申请号：US12088345
申请日：2006-09-25
申请人： Hiroyuki Ikeuchi , Shigeru Sakamoto , Sayaka Machida
发明人： Hiroyuki Ikeuchi , Shigeru Sakamoto , Sayaka Machida
IPC分类号： C08K11/00 , C08K3/10 , C08L33/02 , C08F261/06 , C08K5/053 , B01J20/26 , C08J3/24
CPC分类号： C08K5/053 , B01J20/26 , B01J20/261 , B01J20/267 , B01J2220/68 , C08J3/245 , C08J2300/14
摘要： To provide (i) a water-absorbing agent, having a water-absorbent resin as a main component, whose absorbency is high and liquid permeability is enhanced and (ii) a production method thereof. The water-absorbing agent of the present invention includes a water-absorbent resin obtained by polymerizing an unsaturated monomer having a carboxyl group and included in an aqueous monomer solution in the presence of at least a non high molecular compound having four or more functional groups each capable of forming a covalent bond with a carboxyl group.

7. 发明申请

US20090281232A1 Water-absorbing agent having water-absorbent resin as a main component and production method of the water-absorbing agent 有权
标题翻译：具有吸水性树脂作为主要成分的吸水剂和吸水剂的制造方法
公开(公告)号：US20090281232A1
公开(公告)日：2009-11-12
申请号：US12088345
申请日：2006-09-25
申请人： Hiroyuki Ikeuchi , Shigeru Sakamoto , Sayaka Machida
发明人： Hiroyuki Ikeuchi , Shigeru Sakamoto , Sayaka Machida
IPC分类号： C08K11/00 , C08K3/10 , C08L33/02 , C08F261/06
CPC分类号： C08K5/053 , B01J20/26 , B01J20/261 , B01J20/267 , B01J2220/68 , C08J3/245 , C08J2300/14
摘要： To provide (i) a water-absorbing agent, having a water-absorbent resin as a main component, whose absorbency is high and liquid permeability is enhanced and (ii) a production method thereof. The water-absorbing agent of the present invention includes a water-absorbent resin obtained by polymerizing an unsaturated monomer having a carboxyl group and included in an aqueous monomer solution in the presence of at least a non high molecular compound having four or more functional groups each capable of forming a covalent bond with a carboxyl group.
摘要翻译：提供（i）具有吸水性树脂作为主要成分的吸水剂，其吸收性高，液体渗透性提高，（ii）其制造方法。本发明的吸水剂包括通过在至少具有四个或更多个官能团的非高分子化合物的存在下聚合具有羧基并且包含在单体水溶液中的不饱和单体而获得的吸水性树脂能够与羧基形成共价键。

8. 发明申请

US20090131255A1 Aqueous-liquid-absorbing agent and its production process 有权
标题翻译：含水液体吸收剂及其制备方法
公开(公告)号：US20090131255A1
公开(公告)日：2009-05-21
申请号：US12088354
申请日：2006-09-25
申请人： Hiroyuki Ikeuchi , Shigeru Sakamoto , Sayaka Machida
发明人： Hiroyuki Ikeuchi , Shigeru Sakamoto , Sayaka Machida
IPC分类号： B01J20/26
CPC分类号： C08F220/06 , C08F222/1006
摘要： The present invention provides an aqueous-liquid-absorbing agent which comprises water-absorbent resin particles as essential components and is suitable for uses in sanitary materials. The aqueous-liquid-absorbing agent according to the present invention is an aqueous-liquid-absorbing agent comprising water-absorbent resin particles as essential components, wherein the water-absorbent resin particles are obtained by a process including the step of polymerizing a water-soluble ethylenically unsaturated monomer having a carboxyl group, and have a crosslinked structure in their inside, the aqueous-liquid-absorbing agent exhibiting a water absorption capacity (CRC) of 5 to 25 g/g and a saline flow conductivity (SFC) of not less than 1216 cm3·s·10−7/g.
摘要翻译：本发明提供一种吸水性树脂颗粒作为必需成分的水性液体吸收剂，适用于卫生材料。本发明的水性液体吸收剂是以吸水性树脂粒子为必须成分的含水液体吸收剂，其中，吸水性树脂粒子是通过以下工序得到的：具有羧基的可溶性烯键式不饱和单体，其内部具有交联结构，表现出吸水容量（CRC）为5〜25g / g，盐水流动电导率（SFC）为5〜25g / g的水性液体吸收剂小于1216厘米3.s.10-7 /克。

9. 发明申请

US20070207924A1 Aqueous-Liquid-Absorbing Agent and its Production Process 有权
标题翻译：水性吸液剂及其制备方法
公开(公告)号：US20070207924A1
公开(公告)日：2007-09-06
申请号：US10593706
申请日：2005-03-11
申请人： Hiroyuki Ikeuchi , Kazushi Torii , Shigeru Sakamoto , Taku Iwamura , Sayaka Machida
发明人： Hiroyuki Ikeuchi , Kazushi Torii , Shigeru Sakamoto , Taku Iwamura , Sayaka Machida
IPC分类号： B01J20/26
CPC分类号： C08J3/245
摘要： An object of the present invention is to provide an aqueous-liquid-absorbing agent which comprises water-absorbent resin particles as essential components and is suitable for uses in sanitary materials. As a means of achieving this object, an aqueous-liquid-absorbing agent according to the present invention is an aqueous-liquid-absorbing agent comprising water-absorbent resin particles as essential components, wherein the water-absorbent resin particles are obtained by a process including the step of polymerizing a water-soluble ethylenically unsaturated monomer and have a crosslinked structure in their inside; with the aqueous-liquid-absorbing agent exhibiting an absorption rate (FSR) of not less than 0.2 g/g/s, a water absorption capacity (CRC) of 5 to 25 g/g, a saline flow conductivity (SFC) of not less than 400×10−7 cm3·s/g, and a wet porosity of not less than 20%. A process according to the present invention for obtaining such an aqueous-liquid-absorbing agent is characterized by comprising the steps of: obtaining a hydrogel from an aqueous monomer solution including a water-soluble ethylenically unsaturated monomer and an internal-crosslinking agent of not less than 0.2 mol % in ratio to the monomer; and then extruding this hydrogel from a perforated structure having perforation diameters in the range of 0.3 to 6.4 mm to thereby pulverize the hydrogel.
摘要翻译：本发明的目的是提供一种含水吸收剂，其包含作为必需成分的吸水性树脂粒子，适用于卫生材料。作为实现该目的的手段，本发明的水性液体吸收剂是以吸水性树脂粒子为必须成分的水性液体吸收剂，其中吸水性树脂粒子是通过包括聚合水溶性烯键式不饱和单体并在其内部具有交联结构的步骤; 吸水率（FSR）为0.2g / g / s以上，吸水容量（CRC）为5〜25g / g，盐水流动电导率（SFC）不为小于400×10 -3 cm 3 / g，湿气孔率不小于20％。根据本发明的用于获得这种水性液体吸收剂的方法的特征在于包括以下步骤：从包含水溶性烯键式不饱和单体和不少于少量的内部交联剂的单体水溶液获得水凝胶与单体的比例为0.2摩尔％以上; 然后从穿孔直径在0.3至6.4mm范围内的穿孔结构体挤出该水凝胶，从而粉碎水凝胶。

10. 发明授权

US09517289B2 Water-absorbing agent and method for producing the same 有权
标题翻译：吸水剂及其制造方法
公开(公告)号：US09517289B2
公开(公告)日：2016-12-13
申请号：US12680740
申请日：2008-11-26
申请人： Shigeru Sakamoto , Hiroyuki Ikeuchi , Sayaka Machida
发明人： Shigeru Sakamoto , Hiroyuki Ikeuchi , Sayaka Machida
IPC分类号： C08L57/10 , A61L15/60 , C08G65/332 , C08J3/12 , C08L71/02 , C08L101/14 , C08L33/02
CPC分类号： A61L15/60 , C08G65/3322 , C08J3/12 , C08J2300/14 , C08L33/02 , C08L71/02 , C08L101/14 , C08L2205/05 , C08L2666/04
摘要： The present invention provides a water-absorbing agent that includes water-absorbent resin particles as essential components and is suitable for a sanitary material. A water-absorbing agent of the present invention includes water-absorbent resin particles obtained by polymerizing an unsaturated monomer having an acid group. The water-absorbing agent has centrifuge retention capacity (CRC) of 5 to 20 g/g and includes: a compound with a structure unit derived from polyalkyleneglycol other than the unsaturated monomer; and a multivalent metal salt, and accordingly the water-absorbing agent has high saline flow conductivity (SFC) in a range of the above centrifuge retention capacity (CRC).
摘要翻译：本发明提供一种吸水剂，其包含作为必要成分的吸水性树脂粒子，适用于卫生材料。本发明的吸水剂包括通过聚合具有酸基的不饱和单体获得的吸水性树脂颗粒。吸水剂具有5至20g / g的离心保留容量（CRC），并且包括：具有衍生自不饱和单体以外的聚亚烷基二醇的结构单元的化合物; 和多价金属盐，因此吸水剂在上述离心保留容量（CRC）的范围内具有高的盐水流动电导率（SFC）。

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