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29 条记录 (耗时 0.022 秒)

    METHOD FOR PRODUCING WATER-ABSORBENT RESIN
    1.
    发明公开
    METHOD FOR PRODUCING WATER-ABSORBENT RESIN 审中-公开

    公开(公告)号：EP4286421A1

    公开(公告)日：2023-12-06

    申请号：EP22746068.0

    申请日：2022-01-31

    申请人： Nippon Shokubai Co., Ltd.

    发明人： WAKABAYASHI, Ryota ,  ADACHI, Yoshifumi ,  SATO, Mai ,  FUJINO, Shin-ichi ,  YORINO, Tsuyoshi ,  KATSUBE, Shin-ya ,  SHOBO, Yoshihiro ,  WATABE, Hiroyasu

    IPC分类号： C08F6/26 ,  C08J3/12 ,  C08F220/04 ,  C08F220/20

    摘要： Provided is a production method for a water-absorbing resin in which an absorption capacity without pressure of the resulting water-absorbing resin is high and a water-absorbing resin can be efficiently obtained.
    The production method for a water-absorbing resin including a polymerization step of polymerizing a monomer composition containing an internal crosslinking agent and a monomer to obtain a crosslinked hydrogel polymer, and a drying step of drying the crosslinked hydrogel polymer to obtain a dry polymer, in which the crosslinked hydrogel polymer to be subjected to the drying step contains 50 ppm or more of hydrogen peroxide with respect to the solid content mass of the crosslinked hydrogel polymer, and the crosslinked hydrogel polymer is heated during the drying step so that a maximum reaching temperature of the crosslinked hydrogel polymer exceeds 160°C, and/or the dry polymer is heated after the drying step so that a maximum reaching temperature of the dry polymer exceeds 160°C.

    POLY(METH)ACRYLIC ACID (SALT)-BASED PARTICULATE ABSORBENT, AND PRODUCTION METHOD
    2.
    发明公开
    POLY(METH)ACRYLIC ACID (SALT)-BASED PARTICULATE ABSORBENT, AND PRODUCTION METHOD 审中-公开
    POLY（METH）ACRYLSURE（SALZ）-BASIERTESPARTIKELFÖRMIGESABSORPTIONSMITTEL UND HERSTELLUNGSVERFAHREN

    公开(公告)号：EP3112022A1

    公开(公告)日：2017-01-04

    申请号：EP15756085.5

    申请日：2015-03-02

    申请人： Nippon Shokubai Co., Ltd.

    发明人： IKEUCHI, Yoshitaka ,  ADACHI, Yoshifumi

    IPC分类号： B01J20/26 ,  B01J20/28 ,  B01J20/30 ,  C08J3/12

    CPC分类号： B01J20/261 ,  A61L15/18 ,  A61L15/24 ,  A61L15/425 ,  A61L15/60 ,  B01J20/267 ,  B01J20/28004 ,  B01J20/28011 ,  B01J20/28016 ,  B01J20/28026 ,  B01J20/28045 ,  B01J20/3028 ,  B01J20/3085 ,  B01J2220/68

    摘要： [Problem] To provide, at low cost, a disposable diaper that presents no difficulties in disposable diaper manufacture in humid climates, and that has a minimal amount of flowback, and rapid absorption time.
    [Solution]Provided is a particulate water-absorbing agent having as the principal component a poly (meth) acrylic acid (salt)-based water absorbing resin, wherein the water-absorbing agent has a particle size distribution of a weight average particle diameter of 300 to 500 µm, a blocking ratio after moisture absorption when left for one hour at 25°C and 90% relative humidity of 20% or less, a surface tension of 60 mN/m or more, and a gel capillary absorption (GCA) of 28.0 g/g or more.

    摘要翻译： 为了提供低成本的一次性尿布，其在潮湿的气候中不存在一次性尿布制造中的困难，并且具有最小的回流量和快速的吸收时间。 [溶液]本发明提供以聚（甲基）丙烯酸（盐）为主成分的吸水性树脂为主要成分的颗粒状吸水剂，其中，吸水剂的重均粒径为 在25℃，90％相对湿度下保持1小时，20％以下，表面张力为60mN / m以上，凝胶毛细吸收（GCA）为300〜500μm的吸湿后的阻塞率， 为28.0g / g以上。

    WATER ABSORBENT AND PROCESS FOR PRODUCING THE SAME
    4.
    发明公开
    WATER ABSORBENT AND PROCESS FOR PRODUCING THE SAME 审中-公开
    吸水剂及其制造方法

    公开(公告)号：EP2127741A1

    公开(公告)日：2009-12-02

    申请号：EP08721210.6

    申请日：2008-03-03

    申请人： Nippon Shokubai Co., Ltd.

    发明人： TORII, Kazushi ,  ADACHI, Yoshifumi ,  KOBAYASHI, Taishi ,  WATANABE, Yusuke ,  IKEUCHI, Hiroyuki ,  KITAYAMA, Toshimasa

    IPC分类号： B01J20/26 ,  A61F13/49 ,  A61F13/53 ,  A61L15/60 ,  C08L101/10

    CPC分类号： A61L15/60 ,  A61F13/53 ,  A61F2013/530481 ,  B01J20/267 ,  C08J3/245 ,  C08J2300/14 ,  C08L101/14

    摘要： To provide a water absorbing agent which is excellent in balance between absorbency and liquid permeability against pressure and is excellent in flowability at the time of moisture absorption. The water absorbing agent comprises water absorbent resin particles and an organic surface additive, wherein: the organic surface additive having (i) a reactive group for a functional group of a surface of each water absorbent resin particle and (ii) a hydrophobic group exists on the surface of the water absorbent resin particle, and the hydrophobic group has a hydrocarbon group whose carbon number is 8 or more, and a ratio of an oxyalkylene group in a molecular mass of the organic surface additive is 0 or more and 25 mass% or less.

    摘要翻译： 提供一种吸水性和液体对压力的渗透性之间的平衡优异并且吸湿时的流动性优异的吸水剂。 所述吸水剂包含吸水树脂颗粒和有机表面添加剂，其中：所述有机表面添加剂具有（i）每个吸水树脂颗粒的表面的官能团的反应性基团和（ii）疏水基团， 吸水性树脂颗粒的表面和疏水性基团具有碳数为8以上的烃基，且有机表面添加剂的分子量中氧化烯基的比例为0以上且25质量％以下或 减。

    CROSS-LINKED POLYMER COMPOSITION SWELLING IN WATER AND PROCESS FOR PRODUCING THE SAME
    8.
    发明公开
    CROSS-LINKED POLYMER COMPOSITION SWELLING IN WATER AND PROCESS FOR PRODUCING THE SAME 审中-公开
    VERFAHREN ZU DEREN HERSTELLUNG的WASSERQUELLBARE VERNETZTE POLYMERZUSAMMENSETZUNG

    公开(公告)号：EP1024176A1

    公开(公告)日：2000-08-02

    申请号：EP99935125.7

    申请日：1999-08-10

    申请人： Nippon Shokubai Co., Ltd.

    发明人： HARADA, Nobuyuki ,  SAKAMOTO, Shigeru ,  ADACHI, Yoshifumi ,  KITAYAMA, Toshimasa

    IPC分类号： C08L101/00 ,  B01J20/26

    CPC分类号： B01J20/26 ,  A61L15/60 ,  C08L101/14 ,  Y10T428/2982 ,  Y10T428/31855 ,  C08L79/00 ,  C08L33/02 ,  C08L2666/02

    摘要： The present invention has an object to provide a novel water-swellable crosslinked polymer composition which exhibits excellent saltwater absorption speed and capacity under a load. This object can be achieved in the case where, in a water-swellable crosslinked polymer composition comprising a blend of water-swellable crosslinked polymer particles of basicity in water and water-swellable crosslinked polymer particles of acidity in water, the water-swellable crosslinked polymer particles of basicity in water are unified with the water-swellable crosslinked polymer particles of acidity in water through ionic bondings in a state where water is present between the particles, wherein the ionic bondings are formed in a state where water is present between the particles by neutralization of at least part of acid groups of the water-swellable crosslinked polymer particles of acidity in water with the water-swellable crosslinked polymer particles of basicity in water.

    摘要翻译： 本发明的目的是提供一种在负荷下表现出优异的盐水吸收速度和容量的新的水溶胀性交联聚合物组合物。 该水溶胀性交联聚合物组合物包含在水中呈碱性的水溶胀性交联聚合物粒子和水中的酸溶性水溶胀性交联聚合物粒子的共混物的水溶胀性交联聚合物组合物的情况下，可以实现该目的， 在水中存在水的状态下，通过离子键合在水中的水溶性交联聚合物颗粒与水中的碱性呈一致，其中在颗粒之间存在水的状态下形成离子键， 使水中具有碱性的水溶胀性交联聚合物颗粒在水中中和至少部分酸性的水溶胀性交联聚合物颗粒的酸基团。