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    PROCESS FOR PRODUCTION OF WATER-ABSORBING RESIN
    4.
    发明公开
    PROCESS FOR PRODUCTION OF WATER-ABSORBING RESIN 有权
    生产吸水树脂的方法

    公开(公告)号：EP1900755A1

    公开(公告)日：2008-03-19

    申请号：EP06767655.1

    申请日：2006-06-30

    申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.

    发明人： FUKUDOME, Shinya ,  TAKATORI, Junichi ,  MATSUDA, Kenya ,  NAWATA, Yasuhiro

    IPC分类号： C08F2/18 ,  A61F13/49 ,  A61F13/53 ,  B01J20/26 ,  C08F2/44 ,  C08F20/00

    CPC分类号： C08F2/18 ,  B01J4/002 ,  B01J19/2415 ,  B01J19/26 ,  B01J20/26 ,  B01J31/0235 ,  B01J31/04 ,  B01J2220/68 ,  B01J2231/125 ,  C08F2/001 ,  C08F2/14 ,  C08F220/06 ,  C08F222/385 ,  C08K5/175

    摘要： [Problems] To provide a process for preparing a water-absorbent resin which can be suitably used in a hygienic material, the water-absorbent resin having a large amount of water-retention, a large amount of water absorption under pressure, a high water absorption rate, and a small amount of water-soluble substance.
    [Solving Means] A process for preparing a water-absorbent resin comprising carrying out a reversed phase suspension polymerization in multi-steps of two or more steps when the water-absorbent resin is prepared by subjecting a water-soluble ethylenically unsaturated monomer to the reversed phase suspension polymerization, said process for preparing a water-absorbent resin being characterized by adding an aminocarboxylic acid compound to at least one step in the second and subsequent steps, to carry out the polymerization reaction.

    摘要翻译： 本发明提供一种制备适用于卫生材料的吸水性树脂的方法，该吸水性树脂具有大量的保水性，大的吸水性，高水分吸水性 吸收率和少量水溶性物质。 [解决方法]制备吸水性树脂的方法包括当通过使水溶性烯属不饱和单体经过反转制备吸水性树脂时，以两步或多步的多步进行反相悬浮聚合 所述制备吸水树脂的方法的特征在于在第二步和随后的步骤中的至少一个步骤中加入氨基羧酸化合物以进行聚合反应。

    METHOD FOR PRODUCING WATER-ABSORBING RESIN
    6.
    发明公开
    METHOD FOR PRODUCING WATER-ABSORBING RESIN 审中-公开
    生产吸水树脂的方法

    公开(公告)号：EP2700659A1

    公开(公告)日：2014-02-26

    申请号：EP12774778.0

    申请日：2012-04-19

    申请人： Sumitomo Seika Chemicals Co., Ltd.

    发明人： FUKUDOME, Shinya ,  HINAYAMA, Tetsuhiro ,  HONDA, Noriko ,  TAKATORI, Junichi

    IPC分类号： C08F2/32

    CPC分类号： B01J20/261 ,  A61L15/22 ,  A61L15/60 ,  C08F2/14 ,  C08F2/32 ,  C08F4/04 ,  C08F120/06 ,  C08F220/10 ,  C08J3/245 ,  C08K3/32 ,  C08L33/02 ,  C08F220/06 ,  C08F222/385

    摘要： The invention provides a novel method for producing a water-absorbent resin comprising: subjecting at least one water-soluble ethylenic unsaturated monomer to reversed-phase suspension polymerization in a petroleum hydrocarbon dispersion medium, the reversed-phase suspension polymerization being conducted using a 0.00005 to 0.00016 mol of water-soluble azo initiator for radical polymerization per mol of the water-soluble ethylenic unsaturated monomer in the presence of 0.000015 to 0.00015 mol of hypophosphorous compound per mol of the water-soluble ethylenic unsaturated monomer.
    According to the method, the environmental impact can be lessened by reducing the amount of petroleum hydrocarbon dispersion medium released to the outside of the system, and the method makes it possible to obtain a water-absorbent resin having a high water-retention capacity and water-absorption capacity under a load, and a small content of water soluble component at the same time.

    摘要翻译： 本发明提供了一种制备吸水树脂的新方法，其包括：使至少一种水溶性烯键式不饱和单体在石油烃分散介质中进行反相悬浮聚合，反相悬浮聚合使用0.00005至 每摩尔水溶性烯属不饱和单体存在0.000015-0.00015摩尔次磷酸化合物时，每摩尔水溶性烯属不饱和单体0.00016摩尔水溶性偶氮引发剂用于自由基聚合。 根据该方法，通过减少释放到系统外部的石油烃分散介质的量可以减少对环境的影响，并且该方法使得可以获得具有高保水能力的吸水树脂和水 在负载下的吸收能力和同时少量的水溶性组分。

    WATER-ABSORBING SHEET STRUCTURE
    7.
    发明公开
    WATER-ABSORBING SHEET STRUCTURE 审中-公开
    吸水片结构

    公开(公告)号：EP2565031A1

    公开(公告)日：2013-03-06

    申请号：EP11774870.7

    申请日：2011-04-19

    申请人： Sumitomo Seika Chemicals Co. Ltd.

    发明人： FUKUDOME, Shinya ,  TAKATORI, Junichi ,  MARUO, Junichi ,  HINAYAMA, Tetsuhiro

    IPC分类号： B32B27/12 ,  A61F13/15 ,  A61F13/49 ,  A61F13/53 ,  B32B5/26

    CPC分类号： A61F13/53 ,  A61F2013/530481 ,  B32B5/022 ,  B32B5/30 ,  B32B7/12 ,  B32B27/12 ,  B32B2255/02 ,  B32B2262/0253 ,  B32B2262/0276 ,  B32B2262/04 ,  B32B2307/718 ,  B32B2307/726 ,  B32B2555/02

    摘要： A water-absorbent sheet structure comprising a structure in which an absorbent layer containing a water-absorbent resin and an adhesive is sandwiched with nonwoven fabrics from an upper side and a lower side of the absorbent layer, wherein the water-absorbent sheet structure has a structure in which the absorbent layer is separated in divided parts of a primary absorbent layer and a secondary absorbent layer with a fibrous substrate having a void ratio of from 91 to 99%, and wherein the water-absorbent resin is contained in an amount of from 100 to 1,000 g/m 2 , and wherein the adhesive is contained in a proportion of 0.05 to 2.0 times the amount of the water-absorbent resin contained (mass basis). The water-absorbent sheet structure of the present invention exhibits some effects that a water-absorbent sheet structure has excellent shape retaining ability even when the structure is thin, so that the water-absorbent sheet structure does not undergo deformation of the form before liquid absorption or after the absorption, and is capable of sufficiently exhibiting absorbent properties such as liquid permeability, small amount of re-wet, and small slope liquid leakage.

    摘要翻译： 一种吸水片材结构体，其特征在于，由吸水性树脂和粘接剂构成的吸收层从吸收层的上侧和下侧夹入无纺布而成，其特征在于，所述吸水片材结构体具有 其中吸收层在主吸收层和副吸收层的分开部分中与空隙率为91-99％的纤维基质分离，并且其中吸收树脂的含量为 100至1,000g / m 2，并且其中所述粘合剂以所含吸水树脂的量（质量基准）的0.05至2.0倍的比例包含。 本发明的吸水片材结构体具有如下效果：吸水片材结构即使在结构薄时也具有优异的形状保持能力，使得吸水片材结构体在液体吸收之前不会发生变形 或在吸收之后，并且能够充分显示吸收性能，例如液体渗透性，少量再润湿和小倾斜液体泄漏。

    WATER-ABSORBABLE SHEET STRUCTURE
    9.
    发明公开
    WATER-ABSORBABLE SHEET STRUCTURE 有权
    吸水片材结构

    公开(公告)号：EP2524678A1

    公开(公告)日：2012-11-21

    申请号：EP10843194.1

    申请日：2010-12-27

    申请人： Sumitomo Seika Chemicals Co. Ltd.

    发明人： FUKUDOME, Shinya ,  MARUO, Junichi ,  HANDA, Masayoshi ,  UEDA, Koji

    IPC分类号： A61F13/49 ,  A61F13/53

    CPC分类号： A61F13/534 ,  A61F2013/530131 ,  A61F2013/530481 ,  A61F2013/530554 ,  A61F2013/5307 ,  A61F2013/530737 ,  A61F2013/53445 ,  Y10T442/659

    摘要： A water-absorbent sheet structure comprises a structure in which an absorbent layer containing a water-absorbent resin and an adhesive is sandwiched with nonwoven fabrics from an upper side and a lower side of the absorbent layer, wherein the water-absorbent resin is contained in an amount of from 100 to 1,000 g/m 2 , and wherein the water-absorbent resin has a water-retention capacity of saline solution of from 15 to 50 g/g, and wherein the water-absorbent sheet structure has a peeling strength of from 0.05 to 3.0 N/7 cm. The water-absorbent sheet structure of the present invention exhibits some effects that a water-absorbent sheet structure has excellent shape retaining ability even when the structure is thin, so that the water-absorbent sheet structure does not undergo deformation of the form before liquid absorption or after the absorption, and is capable of sufficiently exhibiting absorbent properties.

    摘要翻译： 吸水片材结构体包括这样一种结构，其中包含吸水树脂和粘合剂的吸收层从吸收层的上侧和下侧夹入非织造织物，其中吸水树脂包含在 100至1,000g / m 2的量，并且其中所述吸水树脂具有15至50g / g的生理盐水保水能力，并且其中所述吸水片材结构的剥离强度为 0.05至3.0N / 7厘米。 本发明的吸水片材结构体具有如下效果：吸水片材结构即使在结构薄时也具有优异的形状保持能力，使得吸水片材结构体在液体吸收之前不会发生变形 或吸收后，并且能够充分显示吸收性能。

    WATER-ABSORBENT SHEET COMPOSITION
    10.
    发明公开
    WATER-ABSORBENT SHEET COMPOSITION 审中-公开
    吸水片组合物

    公开(公告)号：EP2387981A1

    公开(公告)日：2011-11-23

    申请号：EP09838340.9

    申请日：2009-06-29

    申请人： Sumitomo Seika Chemicals Co. Ltd.

    发明人： KAKIMOTO, Hidenobu ,  TAKATORI, Junichi ,  FUKUDOME, Shinya ,  HANDA, Masayoshi

    IPC分类号： A61F13/49 ,  A61F13/15 ,  A61F13/53 ,  B32B5/26 ,  B32B27/00 ,  B32B27/12

    CPC分类号： A61F13/531 ,  A61F2013/530532 ,  A61F2013/530569 ,  A61F2013/530715

    摘要： A water-absorbent sheet composition (51) comprising a structure in which an absorbent layer comprising a water-absorbent resin and an adhesive is sandwiched with two or more sheets of hydrophilic nonwoven fabrics (57), wherein the water-absorbent sheet composition has a structure in which the absorbent layer is fractionated into a primary absorbent layer (53) and a secondary absorbent layer (54), and wherein the water-absorbent sheet composition satisfies (1) the median particle size of the water-absorbent resin (52) used in the primary absorbent layer and the median particle size of the water-absorbent resin (54) used in the secondary absorbent layer are from 100 to 600 µm; (2) the water absorption rate of saline solution of the water-absorbent resin used in the primary absorbent layer is from 20 to 70 seconds; (3) the water absorption rate of saline solution of the water-absorbent resin used in the secondary absorbent layer is from 1. to 20 seconds; and (4) (the water absorption rate of saline solution of the water-absorbent resin used in the primary absorbent Layer)-( the water absorption rate of saline solution of the water-absorbent resin used in the secondary absorbent layer) is 10 seconds or more. The water-absorbent sheet composition of the present invention exhibits some excellent effects that the water-absorbent sheet composition is capable of accomplishing thinning and avoidance of gel blocking phenomenon and liquid leakage, while obtaining basic properties as a water-absorbent sheet composition at a high level, even for a water-absorbent sheet composition containing a very small amount of pulps.

    摘要翻译： 一种吸水片材组合物（51），其特征在于，由吸水性树脂和粘接剂构成的吸收层夹着2片以上的亲水性无纺布（57）而成的吸水性片材组合物（51） 其中吸收层被分成一次吸收层（53）和二次吸收层（54），并且其中吸水片组合物满足（1）吸水树脂（52）的中值粒径， 用于次级吸收层中的吸水性树脂（54）的中值粒径为100-600μm; （2）主吸收层中使用的吸水性树脂的盐溶液的吸水率为20〜70秒， （3）次级吸收层中使用的吸水性树脂的盐水溶液的吸水率为1至20秒; 和（4）（在主吸收层中使用的吸水树脂的盐溶液的吸水率） - （在次吸水层中使用的吸水树脂的盐溶液的吸水率）为10秒 或者更多。 本发明的吸水片材组合物显示出一些优异的效果，即吸水片材组合物能够实现减薄和避免凝胶堵塞现象和液体渗漏，同时获得作为吸水片材组合物的高碱性 甚至对于含有非常少量纸浆的吸水片材组合物也是如此。