公开(公告)号：EP3202823A1

公开(公告)日：2017-08-09

申请号：EP15845662.4

申请日：2015-09-29

申请人： Nippon Shokubai Co., Ltd.

发明人： TORII, Kazushi ,  FUJIKAWA, Ryosuke

IPC分类号： C08J3/12

CPC分类号： B01J20/267 ,  A61L15/24 ,  A61L15/60 ,  B01J20/28004 ,  B01J20/28016 ,  C08J3/075 ,  C08J3/12 ,  C08J3/245 ,  C08J2333/02

摘要： To provide water-absorbing resin powder particularly useful for a sanitary article, water-absorbing resin powder containing a polyacrylic acid (salt)-based water-absorbing resin as a main component is surface-crosslinked, and satisfies (1) to (3) below:
(1) a proportion of a water absorbent resin powder having a particle size of not less than 150 µm and less than 850 µm is not less than 90 weight%;
(2) a water absorption time according to a vortex method is not more than 42 seconds; and
(3) an elastic modulus index (600-500) is not less than 5500.

摘要翻译： 为了提供特别适用于卫生用品的吸水性树脂粉末，以聚丙烯酸（盐）系吸水性树脂为主要成分的吸水性树脂粉末进行表面交联，满足（1）〜（3） （1）粒径为150μm以上且小于850μm的吸水性树脂粉末的比例为90重量％以上; （2）根据涡旋法的吸水时间不超过42秒; 和（3）弹性模量指数（600-500）不小于5500。

公开(公告)号：EP3115382A1

公开(公告)日：2017-01-11

申请号：EP16184029.3

申请日：2011-04-07

申请人： NIPPON SHOKUBAI CO., LTD.

发明人： MACHIDA, Sayaka ,  TORII, Kazushi ,  SHIRAI, Yoko ,  IKEUCHI, Hiroyuki ,  SAKAMOTO, Shigeru ,  TACHI, Koji ,  NAKATSURU, Reiko

IPC分类号： C08F6/00 ,  C08J3/12 ,  C08F220/06

CPC分类号： B01J20/267 ,  B01J20/28004 ,  B01J20/28016 ,  B01J20/3007 ,  B01J20/3021 ,  B01J20/3078 ,  B01J20/3085 ,  B29B9/06 ,  B29B2009/161 ,  B29C48/04 ,  B29C48/30 ,  B29C48/345 ,  B29C48/397 ,  B29C48/687 ,  B29C48/92 ,  B29C2948/9259 ,  B29C2948/92704 ,  C08F6/008 ,  C08F220/06 ,  C08F220/20 ,  C08F222/1006 ,  C08J3/245 ,  C08J2333/02 ,  Y10T428/2982 ,  C08L33/02

摘要： An object of the present invention is to provide a method for producing water absorbent resin powder in which permeability potential (SFC) is improved while a water absorbing rate (FSR) is being kept. The method is a method for producing water absorbent polyacrylic acid (salt) resin powder including the steps of: (i) polymerizing an acrylic acid (salt) monomer aqueous solution; (ii) during or after the step of (i), performing gel grinding of a hydrogel crosslinked polymer obtained by the polymerization, wherein the hydrogel crosslinked polymer has resin solid content of 10 wt% to 80 wt%, and the gel grinding is carried as to obtain a particulate hydrogel crosslinked polymer having a weight average particle diameter (D50) of 350 pm to 2000 pm and logarithmic standard deviation (σζ) of particle size distribution of 0.2 to 1.0; (iii) drying a particulate hydrogel crosslinked polymer obtained by the gel grinding, wherein the drying is performed at 150°C to 250°C; and (iv) carrying out a surface treatment to the particulate hydrogel crosslinked polymer thus dried.

摘要翻译： 本发明的一个目的是提供一种用于同时吸水（FSR）被保持率得到提高在哪个潜在渗透性（SFC）生产吸水性树脂粉末的方法。 该方法是用于生产吸水性聚丙烯酸（盐）树脂粉末，包括以下步骤的方法：（ⅰ）聚合以丙烯酸（盐）单体溶液wässrige; （ii）在或（i）执行由聚合得到的水凝胶的交联聚合物的凝胶粉碎，worin所述水凝胶交联聚合物的工序之后具有10％（重量）树脂固体含量至80％（重量），并且凝胶研磨进行 以获得具有350微米的重均粒径（D50）为2000点和对数标准偏差为0.2〜1.0的颗粒尺寸分布的（ö）得到粒状含水凝胶交联聚合物; （iii）干燥由研磨所获得的颗粒状含水凝胶交联聚合物凝胶，worin干燥在150℃下进行至250℃; 和（iv）进行表面处理，从而干燥颗粒状含水凝胶交联聚合物。

公开(公告)号：EP3085439A1

公开(公告)日：2016-10-26

申请号：EP14872466.9

申请日：2014-12-19

申请人： Nippon Shokubai Co., Ltd.

发明人： OMORI, Kohei ,  TORII, Kazushi ,  TANAKA, Nobuya ,  WATANABE, Yusuke

IPC分类号： B01J20/26 ,  B01J20/30 ,  C08F8/00 ,  C08J3/24 ,  A61F13/49 ,  A61F13/53

CPC分类号： A61L15/26 ,  A61L15/60 ,  B01J20/18 ,  B01J20/261 ,  B01J20/267 ,  B01J20/3085 ,  B01J2220/46 ,  B01J2220/68 ,  C08J3/24 ,  C08J2333/02

摘要： Provided is a water-absorbing agent which is less likely to cause gel blocking and is suitable for a sanitary product and an absorbent article each being thin and containing a large amount of a water-absorbing agent, and which, while maintaining or hardly losing the other physical properties (a fluid retention capacity and a bulk specific gravity) of the water-absorbing agent, simultaneously achieves a high water absorbing speed (e.g., FSR), a high fluid retention capacity under load, high liquid permeability, and salt tolerance. The water-absorbing agent is a polyacrylic acid (salt)-based water-absorbing agent whose surface and its vicinity are crosslinked by an organic surface crosslinking agent, characterized by satisfying the following (A) - (D): (A) Free Swell Rate (FSR) of at least 0.28 g/g/s, or Absorption Time (Vortex) of 42 seconds or less; (B) Absorption Against Pressure (AAP) of at least 20 g/g; (C) Salt Tolerance Index represented by "Salt Tolerance Index = (CRCdw) / (CRCs)" where CRCdw is a centrifuge retention capacity (unit; g/g) for deionized water (dw), and CRCs is a centrifuge retention capacity (unit; g/g) for a 0.9 weight% saline, satisfying "Salt Tolerance Index ≤ 0.49 × CRCs - 7.47"; and (D) Bulk Specific Gravity of 0.55 to 0.70 g/cm 3 .

摘要翻译： 本发明提供一种吸水剂，其不易引起凝胶堵塞，并且适用于各种薄且含有大量吸水剂的卫生产品和吸收性物品，并且其在维持或几乎不损失 吸水剂的其他物理性质（液体保持能力和体积比重）同时实现高的吸水速度（例如FSR），在负载下的高流体保持能力，高液体渗透性和耐盐性。 （A） - （D）：（A）自由膨胀的吸水剂是表面及其附近通过有机表面交联剂交联的聚丙烯酸（盐）类吸水剂，其特征在于： 速率（FSR）至少为0.28g / g / s，或吸收时间（涡旋）为42秒或更少; （B）对压力的吸收（AAP）至少为20g / g; （C）由“耐盐指数=（CRCdw）/（CRCs）”表示的耐盐指数，其中CRCdw是去离子水的离心保留容量（单位; g / g）（dw），而CRC是离心保留容量 单位; g / g）为0.9重量％盐水，满足“耐盐指数≤0.49×CRC = 7.47”; 和（D）0.55至0.70g / cm 3的体积比重。

公开(公告)号：EP3040362A1

公开(公告)日：2016-07-06

申请号：EP14840421.3

申请日：2014-08-28

申请人： Nippon Shokubai Co., Ltd.

发明人： TORII, Kazushi ,  OMORI, Kohei ,  TANAKA, Nobuya ,  SAKAMOTO, Shigeru ,  TADA, Kenji ,  SATO, Hironori

IPC分类号： C08J3/12 ,  B29B9/02 ,  C08J3/075

CPC分类号： B29B9/06 ,  A61L15/24 ,  A61L15/42 ,  A61L15/60 ,  B01J20/261 ,  B01J20/28004 ,  B01J20/3021 ,  B29B9/12 ,  B29B9/16 ,  B29B2009/125 ,  B29C47/661 ,  B29C47/667 ,  B29K2033/04 ,  B29K2105/0061 ,  C08J3/075 ,  C08J3/12 ,  C08J2333/02 ,  C08L33/08

摘要： Provided is a water absorbent resin that is useful to sanitary materials such as a disposable diaper, a sanitary napkin, and a blood absorbent for medical use each having a higher liquid permeability and a higher water absorbing speed. Further provided is a water absorbent resin powder that is useful to sanitary materials such as a disposable diaper, a sanitary napkin, and a blood absorbent for medical use each having a smaller amount of return of a liquid and a higher heat retaining property. A gel grinding device (100) to be used to produce a water absorbent resin, includes: a screw (11); a feed opening (14); an extrusion opening (16); a porous plate (12); and a barrel (13), the screw (11) including: a rotating shaft (22); and a flight, and the screw (11) satisfying at least one of specific parameters.

摘要翻译： 提供了一种吸水性树脂，其可用于具有较高液体渗透性和较高吸水速度的诸如一次性尿布，卫生巾和用于医疗用途的吸收剂的卫生材料。 还提供了一种吸水性树脂粉末，其可用于卫生材料，例如一次性尿布，卫生巾和用于医疗用途的吸血剂，其具有较少的液体返回量和较高的保温性能。 用于制造吸水性树脂的凝胶研磨装置（100）包括：螺杆（11）; 进料口（14）; 挤压开口（16）; 多孔板（12）; 和一个圆筒（13），所述螺钉（11）包括：旋转轴（22）; 和飞行，螺杆（11）满足特定参数中的至少一个。

公开(公告)号：EP3040361A1

公开(公告)日：2016-07-06

申请号：EP14839332.5

申请日：2014-08-28

申请人： Nippon Shokubai Co., Ltd.

发明人： TORII, Kazushi ,  OMORI, Kohei ,  TANAKA, Nobuya ,  SAKAMOTO, Shigeru ,  TADA, Kenji ,  SATO, Hironori

IPC分类号： C08J3/12 ,  B29B9/02 ,  C08J3/075

CPC分类号： A61L15/24 ,  B01J20/261 ,  B01J2220/68 ,  B02C19/0056 ,  B02C19/22 ,  B29B9/06 ,  B29B9/12 ,  B29B9/16 ,  B29B15/00 ,  B29B2009/125 ,  B29C47/661 ,  B29C47/667 ,  B29K2033/00 ,  B29K2105/251 ,  B29K2995/0092 ,  C08F2/10 ,  C08F6/008 ,  C08F220/06 ,  C08J3/075 ,  C08J3/12 ,  C08J2333/02 ,  C08F2222/1013

摘要： Provided is a water absorbent resin that is useful to sanitary materials such as a disposable diaper, a sanitary napkin, and a blood absorbent for medical use each having a higher liquid permeability and a higher water absorbing speed. Further provided is a water absorbent resin powder that is useful to sanitary materials such as a disposable diaper, a sanitary napkin, and a blood absorbent for medical use each having increased in absorbency of a liquid and in heat retaining property. A gel grinding device (100) to be used to produce a water absorbent resin, includes: a screw (11); a feed opening (14); an extrusion opening (16); a porous plate (12); and a barrel (13), the barrel (13) including a return preventing member (19) provided on an inner surface thereof, and the return preventing member (19) satisfying at least one of specific parameters.

摘要翻译： 本发明提供一种吸水性树脂，其对于一次性尿布，生理用卫生巾，医疗用吸水剂等透液性高且吸水速度快的卫生材料有用。 还提供一种吸水性树脂粉末，该吸水性树脂粉末对液体的吸收性和保温性提高的一次性尿布，生理用卫生巾，医疗用血液吸收剂等卫生材料有用。 一种用于生产吸水树脂的凝胶研磨装置（100），包括：螺杆（11）; 一个进料口（14）; 一个挤压开口（16）; 一个多孔板（12）; 和一个筒体（13），所述筒体（13）包括一个设置在其内表面上的复位防止件（19），以及所述复位防止件（19）满足至少一个特定参数。

公开(公告)号：EP2727953A1

公开(公告)日：2014-05-07

申请号：EP12804802.2

申请日：2012-06-29

申请人： Nippon Shokubai Co., Ltd.

发明人： TORII, Kazushi ,  NAKATSURU, Reiko ,  NAKASHIMA, Yasuhisa ,  WADA, Katsuyuki ,  ISHIZAKI, Kunihiko

IPC分类号： C08J3/12 ,  C08F20/06 ,  C08L33/02

CPC分类号： A61L15/26 ,  A61L15/60 ,  C08F20/06 ,  C08F220/06 ,  C08J3/245 ,  C08J2333/02 ,  C08K5/0091 ,  C08K5/175 ,  C08L33/02 ,  Y10T428/2982 ,  C08F2222/1013

摘要： Provided is a water absorbent resin having excellent liquid permeability, water absorbent speed, anti-impact stability, and weather resistance. Provided is a polyacrylic acid (salt)-based water absorbent resin powder in which the water absorption capacity without load (CRC) is 30 to 45 [g/g], the water absorption capacity under load (AAP 0.3) is 20 to 35 [g/g], the water absorption capacity under load (AAP 0.7) is 10 to 28 [g/g], and the weight average particle diameter (D50) is 300 to 500 µm, characterized by including p-methoxyphenol; having a degradable soluble component (0.05%L-A (saline) for 2 hours / 60°C, one hour extraction rinse / room temperature) of 40% by weight or less; and having a internal gas bubbles ratio of 0.1 to 2.5%, as specified by the following equation. Internal gas bubbles ratio % = True density - Apparent density / True density x 100

摘要翻译： 本发明提供一种具有优异的液体渗透性，吸水速度，耐冲击稳定性和耐候性的吸水性树脂。 本发明提供一种聚丙烯酸（盐）系吸水性树脂粉末，其中无负载的吸水能力（CRC）为30至45克/克]，负载下的吸水能力（AAP 0.3）为20至35 克/克]，负载下的吸水能力（AAP 0.7）为10〜28 [克/克]，和重均粒径（D50）为300〜500微米，通过包括对甲氧基苯酚为特征的; 具有（2小时/ 60℃，一小时萃取漂洗/室温0.05％L-A（盐水））的40％重量或更少的可降解的可溶性组分; 和具有内部气泡的0.1比至2.5％，如由下面的等式确定。 内部气泡率（％）=真密度 - 表观密度/真密度×100

公开(公告)号：EP2484702A1

公开(公告)日：2012-08-08

申请号：EP10820690.5

申请日：2010-09-30

申请人： Nippon Shokubai Co., Ltd.

发明人： MATSUMOTO, Satoshi ,  ISHIZAKI, Kunihiko ,  TORII, Kazushi ,  FUJINO, Shin-ichi ,  SAKAMOTO, Kazuhiko

IPC分类号： C08F20/06 ,  C08F2/00 ,  C08F6/12

CPC分类号： C08F20/06 ,  B01J2219/00006 ,  C08J3/245 ,  C08J2333/02 ,  Y10T428/31859

摘要： A method for producing a polyacrylic acid (salt)-based water absorbent resin, sequentially including the steps of: storing or producing acrylic acid; mixing acrylic acid containing a polymerization inhibitor with water, a crosslinking agent, and optionally, a basic composition, and/or neutralizing them, to prepare an aqueous monomer solution; polymerizing the aqueous monomer solution; drying an obtained water-containing gel-like crosslinked polymer; and optionally carrying out surface crosslinking, wherein the acrylic acid containing the polymerization inhibitor has a water content of not higher than 1,000 ppm (by mass; the same applies hereinafter), and/or the aqueous monomer solution has a formic acid content of 1 to 700 ppm, relative to the monomer.

摘要翻译： 一种聚丙烯酸（盐）类吸水性树脂的制造方法，其顺序包括以下步骤：储存或制备丙烯酸; 将含有聚合抑制剂的丙烯酸与水混合，交联剂和任选的碱性组合物，和/或中和它们以制备单体水溶液; 聚合单体水溶液; 干燥得到的含水凝胶状交联聚合物; 并且可选地进行表面交联，其中含有聚合抑制剂的丙烯酸的含水量不高于1000ppm（以质量计），和/或单体水溶液的甲酸含量为1〜 700 ppm，相对于单体。

公开(公告)号：EP1641883B1

公开(公告)日：2012-02-08

申请号：EP04746711.3

申请日：2004-06-23

申请人： NIPPON SHOKUBAI CO., LTD.

发明人： ADACHI, Yoshifumi ,  KITANO, Takahiro ,  FUJINO, Shinichi ,  WADA, Katsuyuki ,  TORII, Kazushi ,  IWAMURA, Taku ,  MACHIDA, Sayaka

IPC分类号： C08L101/14 ,  C08K3/10 ,  A61F13/53 ,  A61L15/60

CPC分类号： A61L15/60 ,  A61F2013/530686 ,  A61F2013/530744

摘要： The production method of a water absorbent resin composition including a particulate water absorbent resin, wherein: 95 wt % or more of particles whose particle diameter is less than 850 µm and not less, than 106 µm are contained, and a weight average particle diameter of the particles is less than 500 µm and not less than 300 µ m and a logarith mic standard deviation (σξ) of a particle size distribution is 0.45 or less, and a water-soluble component of the water absorbent composition is 35 wt % or less, and a multivalent metal component is contained, and an extraction rate of the multivalent metal component is 5.0 wt % or more and less than 100 wt %, thereby providing the water absorbent resin composition, free from any coagulation of particles in high humidity, which has superiror absorbent property in terms of an absorbency and a diffusing absorbency under pressure.

公开(公告)号：EP2190572A1

公开(公告)日：2010-06-02

申请号：EP08833368.7

申请日：2008-09-26

申请人： Nippon Shokubai Co., Ltd.

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

IPC分类号： B01J20/26 ,  C08K3/24 ,  C08K5/09 ,  C08K13/02 ,  C08L101/14 ,  A61F13/49 ,  A61F13/53 ,  A61L15/60

CPC分类号： A61L15/60 ,  B01J20/26 ,  B01J20/267 ,  C08K5/09

摘要： The present invention provides a water absorbing agent, and a method for producing the water absorbing agent. The water absorbing agent includes water absorbent resin particles, an organic acid and/or salt thereof having carbon number of 10 or more and not more than 30 in its molecule, and a water-soluble polyvalent cation. The method includes the step (i) of mixing the water absorbent resin particles, the organic acid and/or salt thereof having carbon number of 10 or more and not more than 30 in its molecule, and the water-soluble polyvalent cation with one another.

摘要翻译： 本发明提供一种吸水剂，以及该吸水剂的制造方法。 吸水剂包括吸水树脂颗粒，其分子中碳数为10以上且不超过30的有机酸和/或其盐和水溶性多价阳离子。 该方法包括将吸水性树脂颗粒，其分子中碳数为10以上且不超过30的有机酸和/或其盐与水溶性多价阳离子彼此混合的步骤（i） 。

公开(公告)号：EP1838766A1

公开(公告)日：2007-10-03

申请号：EP05816469.0

申请日：2005-12-09

申请人： Nippon Shokubai Co.,Ltd.

发明人： MATSUMOTO, Makoto ,  MITSUKAMI, Yoshiro ,  IKEUCHI, Hiroyuki ,  TORII, Kazushi ,  IWAMURA, Taku

IPC分类号： C08J3/28 ,  C08J7/18 ,  C08J7/16 ,  C08F265/02 ,  A61L15/60

CPC分类号： C08F265/00 ,  C08F265/02 ,  C08J3/28 ,  C08J7/18 ,  C08J2300/14 ,  C08J2333/02 ,  C08L51/003 ,  C08L2666/02

摘要： This invention is to provide a method for surface-treatment of a water absorbent resin excelling in water absorption properties. This invention relates to a method for the surface-treatment of a water absorbent resin, which comprises: a) mixing 100 parts by weight of a water absorbent resin, 0.01 - 20 parts by weight of at least one radical polymerization initiator selected from the group consisting of persulfates, hydrogen peroxide, and azo compounds, and a radically polymerizing compound and b) irradiating the resultant mixture with active energy rays. The treatment particularly exalts the absorption ratio against pressure and the saline flow conductivity.