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    Absorbing agent composition, absorbent material, and absorbent product containing absorbent material
    1.
    发明授权
    Absorbing agent composition, absorbent material, and absorbent product containing absorbent material 失效
    吸收剂组合物，吸收材料和含有吸收材料的吸收制品

    公开(公告)号：US5797893A

    公开(公告)日：1998-08-25

    申请号：US703882

    申请日：1996-08-27

    申请人： Katsuyuki Wada ,  Kunihiko Ishizaki ,  Kinya Nagasuna

    发明人： Katsuyuki Wada ,  Kunihiko Ishizaki ,  Kinya Nagasuna

    IPC分类号： A61F13/15 ,  A61L15/18 ,  A61L15/20 ,  A61L15/42 ,  A61L15/60 ,  C08J3/24 ,  C08L101/14 ,  A61F13/20

    CPC分类号： C08L101/14 ,  A61F13/15203 ,  A61F13/8405 ,  A61L15/18 ,  A61L15/20 ,  A61L15/42 ,  A61L15/60 ,  C08J3/245 ,  A61F2013/15463 ,  A61F2013/15471 ,  C08J2300/14

    摘要： An absorbing agent composition exhibiting excellent properties (absorbing properties), such as capabilities of maintaining high liquid diffusion and a constant absorbing capacity per unit weight, even when an amount of an absorbent resin is increased in percent by weight based on the weight of the absorbing agent composition, and an absorbent material containing such an absorbing agent composition and an absorbent product containing the absorbent material. The absorbing agent composition has a diffusing absorbency index under pressure of 1.5 g/g.multidot.min or higher with respect to a physiological saline solution under a load of 20 g/cm.sup.2. The absorbent material contains at least 40 weight percent absorbing agent composition based on the weight of the absorbent material. The absorbent product comprises an absorbent layer containing the absorbent material sandwiched by a liquid permeable sheet and a liquid impermeable sheet. The diffusing absorbency index under pressure is calculated by a device used for measuring the diffusing absorbency under pressure, that is, a weight of a physiological saline solution absorbed by the absorbing agent composition placed in a supporting cylinder for 60 minutes since the supporting cylinder is placed on a sheet with a weight is measured in time series using a balance.

    摘要翻译： 吸收剂组合物，即使吸水性树脂的量以吸收重量为基准的重量百分比增加，其表现出优异的性能（吸收性能），例如维持高液体扩散能力和每单位重量的恒定吸收能力 试剂组合物和含有这种吸收剂组合物的吸收材料和含有吸收材料的吸收产品。 吸收剂组合物在20g / cm 2的负荷下，相对于生理盐水溶液，在1.5g / g×min以上的压力下具有扩散吸收指数。 吸收材料含有至少40重量％的基于吸收材料重量的吸收剂组合物。 吸收性物品包括吸收层，该吸收层含有被透液性片材和不透液性片材夹持的吸收材料。 在压力下的扩散吸收指数由用于测量加压下的扩散吸收性的装置，即由放置在支撑筒中的吸收剂组合物吸收的生理盐水溶液的重量计算，从支撑筒放置60分钟 在具有重量的片材上使用天平以时间序列测量。

    Method of producing a hydrophilic resin
    2.
    发明授权
    Method of producing a hydrophilic resin 有权
    亲水性树脂的制造方法

    公开(公告)号：US06476155B1

    公开(公告)日：2002-11-05

    申请号：US09634532

    申请日：2000-08-08

    申请人： Katsuyuki Wada ,  Masatoshi Nakamura ,  Kinya Nagasuna ,  Yoshihiko Masuda

    发明人： Katsuyuki Wada ,  Masatoshi Nakamura ,  Kinya Nagasuna ,  Yoshihiko Masuda

    IPC分类号： F83

    CPC分类号： C08J3/24 ,  C08J3/20 ,  C08J2300/14

    摘要： A hydrophilic polymer is denatured with a gaseous denaturant or a powdery denaturant substance made from a liquid denaturant substance. The liquid denaturant substance is made into powders by, for example, a method of mixing the liquid denaturant substance with a water-insoluble compound, a method of cooling the liquid denaturant substance to or below its melting point to turn the same into a solid state. Consequently, the hydrophilic polymer can be denatured uniformly. In case that the hydrophilic polymer is denatured with a gaseous denaturant, the hydrophilic polymer and denaturant react with each other efficiently in a safe manner regardless of the size or shape of the hydrophilic polymer. In case that the hydrophilic polymer is denatured with the powdery denaturant substance, not only the liquid denaturant substance which is substantially in the solid state can be mixed with the hydrophilic polymer, but also the denaturation timing can be readily controlled.

    摘要翻译： 亲水性聚合物用气态变性剂或由液体变性剂物质制成的粉状变性剂物质变性。 液体变性剂物质通过例如将液体变性剂物质与水不溶性化合物混合的方法制成粉末，将液体变性剂物质冷却至其熔点以下以使其变为固态的方法 。 因此，亲水性聚合物可以均匀地变性。 亲水性聚合物在气态变性剂变性的情况下，无论亲水性聚合物的尺寸或形状如何，亲水性聚合物和变性剂以安全的方式有效地彼此反应。 亲水性聚合物与粉末状变性剂变性的情况下，不仅可以将基本上处于固体状态的液体变性剂与亲水性聚合物混合，而且可以容易地控制变性定时。

    Absorbing agent, process of manufacturing same, and absorbent product containing same
    3.
    发明授权
    Absorbing agent, process of manufacturing same, and absorbent product containing same 失效
    吸收剂，其制造方法以及含有该吸收剂的吸收剂

    公开(公告)号：US5760080A

    公开(公告)日：1998-06-02

    申请号：US571960

    申请日：1995-12-28

    申请人： Katsuyuki Wada ,  Kinya Nagasuna ,  Shin-ichi Fujino ,  Yoshihiko Masuda

    发明人： Katsuyuki Wada ,  Kinya Nagasuna ,  Shin-ichi Fujino ,  Yoshihiko Masuda

    IPC分类号： A61F13/15 ,  A61L15/60 ,  C08F220/00 ,  C08F220/06 ,  C08F8/32 ,  C08F8/14

    CPC分类号： A61F13/53 ,  A61F13/15203 ,  A61L15/60 ,  C08F220/00 ,  C08F220/06

    摘要： An absorbing agent has a diffusing absorbency under pressure of not less than 25 g/g when 60 minutes elapsed after absorption is started, and a water-soluble content is above 0 percent by weight and not more than 7 percent by weight. The absorbing agent is prepared by surface-crosslinking a precursor of the absorbing agent obtained by performing an aqueous solution polymerization of a hydrophilic unsaturated monomer having not less than 50 mole percent neutralized acrylic acid as a main component using a specific crosslinking agent having a main component composed of an ester compound of a specific polyhydroxy alcohol and an unsaturated carboxylic acid, and a high-boiling component having at least two alcohol structures in a molecule as a specific ratio. As a result, an absorbing agent having excellent properties such as the diffusing absorbency under pressure is high, the water soluble content is small, and the amount of wet back of the aqueous liquid after a long period of time is small, water absorbency under pressure can be stably maintained for a long period of time can be achieved.

    摘要翻译： PCT No.PCT / JP95 / 01150 Sec。 371日期1995年12月28日第 102（e）1995年12月28日PCT PCT 1995年6月9日PCT公布。 第WO95 / 34377号公报 日期1995年12月21日吸收剂在吸收开始60分钟后具有不低于25g / g的压力下的扩散吸收性，并且水溶性成分高于0重量％且不大于7重量％ 重量。 吸收剂是通过使用具有主成分的特定交联剂进行以不少于50摩尔％中和的丙烯酸为主成分的亲水性不饱和单体的水溶液聚合而获得的吸收剂的前体进行表面交联而制备的。 由特定的多羟基醇和不饱和羧酸的酯化合物和分子中具有至少两个醇结构的高沸点组分作为特定比例组成。 结果，具有优异性能的吸收剂如压力下的扩散吸收性高，水溶性量小，长时间后的水性液体的湿润量少，压力下的吸水性 可以长期稳定地维持可以实现。

    Water-absorbing agent and production process therefor
    5.
    发明授权
    Water-absorbing agent and production process therefor 有权

    公开(公告)号：US6110992A

    公开(公告)日：2000-08-29

    申请号：US272090

    申请日：1999-03-18

    申请人： Katsuyuki Wada ,  Kinya Nagasuna

    发明人： Katsuyuki Wada ,  Kinya Nagasuna

    IPC分类号： A61L15/60 ,  C08F8/00 ,  C08K9/00 ,  C08L83/00

    CPC分类号： A61L15/60 ,  C08F8/00 ,  C08F2800/20 ,  C08F2810/20

    摘要： The invention provides a water-absorbing agent, which has high absorption capacity and excellent absorption efficiency under increased pressure and can display excellent water absorption properties when used for sanitary materials even if the resin concentration of a water-absorbent resin is high. The water-absorbing agent has an absorption capacity of 30 (g/g) or more and the below-defined absorption efficiency of 0.7 or more under increased pressure. This agent can be obtained by heating in the presence of a surface-crosslinking agent a water-absorbent resin having an absorption capacity of 40 (g/g) or more and an amount of an eluting component of 1 wt % or less relative to the water-absorbent resin, or by: polymerizing a water-absorbent resin in the presence of a chain transfer agent; treating the polymerized resin with a hydrophilic solution; and heating the treated resin in the presence of a surface-crosslinking agent. ##EQU1##

    Absorbing agent, process of manufacturing same, and absorbent product containing same
    7.
    再颁专利
    Absorbing agent, process of manufacturing same, and absorbent product containing same 失效
    吸收剂，其制造方法以及含有该吸收剂的吸收剂

    公开(公告)号：USRE38444E1

    公开(公告)日：2004-02-24

    申请号：US09586745

    申请日：2000-06-02

    申请人： Katsuyuki Wada ,  Kinya Nagasuna ,  Shin-ichi Fujino ,  Yoshihiko Masuda

    发明人： Katsuyuki Wada ,  Kinya Nagasuna ,  Shin-ichi Fujino ,  Yoshihiko Masuda

    IPC分类号： C08F832

    CPC分类号： A61L15/60 ,  C08F220/06

    摘要： An absorbing agent has a diffusing absorbency under pressure of not less than 25 g/g when 60 minutes elapsed after absorption is started, and a water-soluble content is above 0 percent by weight and not more than 7 percent by weight. The absorbing agent is prepared by surface-crosslinking a precursor of the absorbing agent obtained by performing an aqueous solution polymerization of a hydrophilic unsaturated monomer having not less than 50 mole percent neutralized acrylic acid as a main component using a specific crosslinking agent having a main component composed of an ester compound of a specific polyhydroxy alcohol and an unsaturated carboxylic acid, and a high-boiling component having at least two alcohol structures in a molecule as a specific ratio. As a result, an absorbing agent having excellent properties such as the diffusing absorbency under pressure is high, the water soluble content is small, and the amount of wet back of the aqueous liquid after a long period of time is small, water absorbency under pressure can be stably maintained for a long period of time can be achieved.

    Water-absorbing agent and production process therefor
    8.
    发明授权
    Water-absorbing agent and production process therefor 失效
    吸水剂及其生产工艺

    公开(公告)号：US6127454A

    公开(公告)日：2000-10-03

    申请号：US947094

    申请日：1997-10-08

    申请人： Katsuyuki Wada ,  Kinya Nagasuna

    发明人： Katsuyuki Wada ,  Kinya Nagasuna

    IPC分类号： A61L15/60 ,  C08F8/00 ,  C08K9/00 ,  C08L83/00 ,  A61L15/00

    CPC分类号： A61L15/60 ,  C08F8/00 ,  C08F2800/20 ,  C08F2810/20

    摘要： The invention provides a water-absorbing agent, which has high absorption capacity and excellent absorption efficiency under increased pressure and can display excellent water absorption properties when used for sanitary materials even if the resin concentration of a water-absorbent resin is high. The water-absorbing agent has an absorption capacity of 30 (g/g) or more and the below-defined absorption efficiency of 0.7 or more under increased pressure. This agent can be obtained by heating in the presence of a surface-crosslinking agent a water-absorbent resin having an absorption capacity of 40 (g/g) or more and an amount of an eluting component of 1 wt % or less relative to the water-absorbent resin, or by: polymerizing a water-absorbent resin in the presence of a chain transfer agent; treating the polymerized resin with a hydrophilic solution; and heating the treated resin in the presence of a surface-crosslinking agent. ##EQU1##

    摘要翻译： 本发明提供一种吸水剂，即使在吸水性树脂的树脂浓度高的情况下，也可以在增加压力的情况下具有高吸收能力和优异的吸收效率，并且在用于卫生材料时可以显示优异的吸水性。 该吸水剂在增加压力下的吸收能力为30（g / g）以上，吸收效率为0.7以下。 可以通过在表面交联剂的存在下加热吸收能力为40（g / g）以上的吸水性树脂和1重量％以下的洗脱成分的量相对于 吸水性树脂，或通过在链转移剂的存在下聚合吸水性树脂; 用亲水溶液处理聚合树脂; 并在表面交联剂的存在下加热经处理的树脂。

    Process of manufacturing precursor of an absorbing agent
    9.
    发明授权
    Process of manufacturing precursor of an absorbing agent 失效
    制造吸收剂前体的方法

    公开(公告)号：US6054541A

    公开(公告)日：2000-04-25

    申请号：US45827

    申请日：1998-03-23

    申请人： Katsuyuki Wada ,  Kinya Nagasuna ,  Shin-ichi Fujino ,  Yoshihiko Masuda

    发明人： Katsuyuki Wada ,  Kinya Nagasuna ,  Shin-ichi Fujino ,  Yoshihiko Masuda

    IPC分类号： A61F13/15 ,  A61L15/60 ,  C08F220/00 ,  C08F220/06 ,  C08F8/14

    CPC分类号： A61F13/53 ,  A61F13/15203 ,  A61L15/60 ,  C08F220/00 ,  C08F220/06

    摘要： An absorbing agent has a diffusing absorbency under pressure of not less than 25 g/g when 60 minutes elapsed after absorption is started, and a water-soluble content is above 0 percent by weight and not more than 7 percent by weight. The absorbing agent is prepared by surface-crosslinking a precursor of the absorbing agent obtained by performing an aqueous solution polymerization of a hydrophilic unsaturated monomer having not less than 50 mole percent neutralized acrylic acid as a main component using a specific crosslinking agent having a main component composed of an ester compound of a specific polyhydroxy alcohol and an unsatuated carboxylic acid, and a high-boiling component having at least two alcohol structures in a molecule as a specific ratio. As a result, an absorbing agent having excellent properties such as the diffusing absorbency under pressure is high, the water soluble content is small, and the amount of wet back of the aqueous liquid after a long period of time is small, water absorbency under pressure can be stably maintained for a long period of time can be achieved.

    摘要翻译： 吸收剂在吸收开始60分钟后具有不低于25g / g的压力下的扩散吸收性，并且水溶性成分高于0重量％且不大于7重量％。 吸收剂是通过使用具有主成分的特定交联剂进行以不少于50摩尔％中和的丙烯酸为主成分的亲水性不饱和单体的水溶液聚合而获得的吸收剂的前体进行表面交联而制备的。 由特定的多羟基醇和不饱和羧酸的酯化合物和分子中具有至少两个醇结构的高沸点组分作为特定比例组成。 结果，具有优异性能的吸收剂如压力下的扩散吸收性高，水溶性量小，长时间后的水性液体的湿润量少，压力下的吸水性 可以长期稳定地维持可以实现。