JPH11286611A5 - - Google Patents
Info
- Publication number
- JPH11286611A5 JPH11286611A5 JP1998091657A JP9165798A JPH11286611A5 JP H11286611 A5 JPH11286611 A5 JP H11286611A5 JP 1998091657 A JP1998091657 A JP 1998091657A JP 9165798 A JP9165798 A JP 9165798A JP H11286611 A5 JPH11286611 A5 JP H11286611A5
- Authority
- JP
- Japan
- Prior art keywords
- water
- fine particles
- absorbent resin
- microparticles
- resin composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Description
【０００７】
【課題を解決するための手段】
上記課題を解決するため、本発明は、以下の構成をとる。
（１）吸水性樹脂、ならびに、無機質および／または有機質の微粒子を含む吸水性樹脂組成物であって、前記微粒子として、粒径分布指数（ｄ ２５ ／ｄ ７５ ）が３以下の単分散性の微粒子を含むことを特徴とする、吸水性樹脂組成物。
（２）前記微粒子として、下記で規定される真球率が１〜１．１の微粒子を含む、前記（１）に記載の吸水性樹脂組成物。
微粒子の真球率＝（微粒子の最長径の平均値）／（微粒子の最短径の平均値）
（３）吸水性樹脂、ならびに、無機質および／または有機質の微粒子を含む吸水性樹脂組成物であって、前記微粒子として、単分散性であって、かつ、下記で規定される真球率が１〜１．１の微粒子を含むことを特徴とする、吸水性樹脂組成物。
微粒子の真球率＝（微粒子の最長径の平均値）／（微粒子の最短径の平均値）
（４）前記微粒子は、当該微粒子の５０％以上が互いに二次凝集していないものである、前記（１）から（３）までのいずれかに記載の吸水性樹脂組成物。
（５）前記吸水性樹脂の平均粒子径が１０〜１０００μｍであり、前記微粒子の平均粒子径が０．０１〜１０μｍである、前記（１）から（４）までのいずれかに記載の吸水性樹脂組成物。
（６）前記吸水性樹脂が表面架橋された吸水性樹脂粉末である、前記（１）から（５）までのいずれかに記載の吸水性樹脂組成物。
（７）２０ｇ／ｃｍ ２ の荷重での生理食塩水（０．９重量％塩化ナトリウム水溶液）に対する６０分間での加圧下の吸収倍率が３０ｇ／ｇ以上である、前記（１）から（６）までのいずれかに記載の吸水性樹脂組成物。
（８）前記微粒子が、二酸化珪素、二酸化チタン、酸化アルミニウム、ゼオライト、カオリン、ハイドロサルタイトから選ばれる少なくとも１種の無機質の微粒子状粉体である、前記（１）から（７）までのいずれかに記載の吸水性樹脂組成物。
（９）吸水性樹脂、ならびに、無機質および／または有機質の微粒子を含む吸水性樹脂組成物の製造方法であって、吸水性樹脂と粒径分布指数（ｄ ２５ ／ｄ ７５ ）が３以下の単分散性の微粒子を混合することを特徴とする、吸水性樹脂の製造方法。
（10）吸水性樹脂、ならびに、無機質および／または有機質の微粒子を含む吸水性樹脂組成物の製造方法であって、吸水性樹脂と下記に規定される真球率が１〜１．１の微粒子を混合することを特徴とする、吸水性樹脂の製造方法。
微粒子の真球率＝（微粒子の最長径の平均値）／（微粒子の最短径の平均値）
[0007]
[Means for solving the problem]
In order to solve the above problems, the present invention has the following configuration.
(1) A water-absorbent resin composition comprising a water-absorbent resin and inorganic and/or organic fine particles, characterized in that the fine particles comprise monodisperse fine particles having a particle size distribution index (d25 / d75 ) of 3 or less .
(2) The water-absorbing resin composition according to (1) above, wherein the fine particles contain fine particles having a sphericity of 1 to 1.1 as defined below .
Sphericity of microparticles = (average longest diameter of microparticles) / (average shortest diameter of microparticles)
(3) A water-absorbent resin composition comprising a water-absorbent resin and inorganic and/or organic fine particles, characterized in that the fine particles are monodisperse and have a sphericity of 1 to 1.1 as defined below .
Sphericity of microparticles = (average longest diameter of microparticles) / (average shortest diameter of microparticles)
(4) The water-absorbing resin composition according to any one of (1) to (3), wherein 50% or more of the fine particles are not secondary aggregated with each other .
(5) The water-absorbing resin composition according to any one of (1) to (4), wherein the water-absorbing resin has an average particle size of 10 to 1000 μm, and the fine particles have an average particle size of 0.01 to 10 μm.
(6) The water-absorbent resin composition according to any one of (1) to (5), wherein the water-absorbent resin is a surface-crosslinked water-absorbent resin powder .
(7) The water-absorbent resin composition according to any one of (1) to (6), wherein the absorbency under pressure for 60 minutes to physiological saline (0.9 wt % aqueous sodium chloride solution) at a load of 20 g/cm 2 is 30 g/g or more.
(8) The water-absorbent resin composition according to any one of (1) to (7), wherein the fine particles are at least one inorganic fine particle powder selected from silicon dioxide, titanium dioxide, aluminum oxide, zeolite, kaolin, and hydrosaltite.
( 9) A method for producing a water-absorbent resin composition containing a water-absorbent resin and inorganic and/or organic fine particles, characterized in that the water-absorbent resin is mixed with monodisperse fine particles having a particle size distribution index (d25/d75) of 3 or less .
(10) A method for producing a water-absorbent resin composition containing a water-absorbent resin and inorganic and/or organic fine particles, characterized in that the water-absorbent resin is mixed with fine particles having a sphericity of 1 to 1.1 as defined below.
Sphericity of microparticles = (average longest diameter of microparticles) / (average shortest diameter of microparticles)
Claims (10)
微粒子の真球率＝（微粒子の最長径の平均値）／（微粒子の最短径の平均値） 2. The water-absorbing resin composition according to claim 1 , wherein the fine particles have a sphericity of 1 to 1.1 as defined below .
Sphericity of microparticles = (average longest diameter of microparticles) / (average shortest diameter of microparticles)
微粒子の真球率＝（微粒子の最長径の平均値）／（微粒子の最短径の平均値） A water-absorbent resin composition comprising a water-absorbent resin and inorganic and/or organic fine particles, characterized in that the fine particles are monodisperse and have a sphericity of 1 to 1.1 as defined below .
Sphericity of microparticles = (average longest diameter of microparticles) / (average shortest diameter of microparticles)
微粒子の真球率＝（微粒子の最長径の平均値）／（微粒子の最短径の平均値） A method for producing a water-absorbent resin composition containing a water-absorbent resin and inorganic and/or organic fine particles, the method comprising mixing the water-absorbent resin with fine particles having a sphericity of 1 to 1.1 as defined below .
Sphericity of microparticles = (average longest diameter of microparticles) / (average shortest diameter of microparticles)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09165798A JP4047443B2 (en) | 1998-04-03 | 1998-04-03 | Water absorbent resin composition and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09165798A JP4047443B2 (en) | 1998-04-03 | 1998-04-03 | Water absorbent resin composition and method for producing the same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH11286611A JPH11286611A (en) | 1999-10-19 |
| JPH11286611A5 true JPH11286611A5 (en) | 2005-08-11 |
| JP4047443B2 JP4047443B2 (en) | 2008-02-13 |
Family
ID=14032584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09165798A Expired - Fee Related JP4047443B2 (en) | 1998-04-03 | 1998-04-03 | Water absorbent resin composition and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4047443B2 (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60016326T2 (en) | 1999-07-26 | 2005-11-24 | Nippon Shokubai Co., Ltd. | Water-absorbent composition and its use |
| DE10053858A1 (en) | 2000-10-30 | 2002-05-08 | Stockhausen Chem Fab Gmbh | Absorbent structure with improved blocking properties |
| US7595428B2 (en) | 2000-11-22 | 2009-09-29 | Nippon Shokubai Co., Ltd. | Water-absorbing agent composition and method for production thereof, absorptive article and absorbing material |
| US6727345B2 (en) * | 2001-07-03 | 2004-04-27 | Nippon Shokubai Co., Ltd. | Continuous production process for water-absorbent resin powder and powder surface detector used therefor |
| JP2003225565A (en) | 2001-11-20 | 2003-08-12 | San-Dia Polymer Ltd | Water absorbent, manufacturing method therefor, and absorbing material and absorptive article using the water absorbent |
| US7173086B2 (en) * | 2003-10-31 | 2007-02-06 | Stockhausen, Inc. | Superabsorbent polymer with high permeability |
| TW200720347A (en) * | 2005-09-30 | 2007-06-01 | Nippon Catalytic Chem Ind | Water-absorbent agent composition and method for manufacturing the same |
| CN102898662B (en) | 2006-03-27 | 2015-06-03 | 株式会社日本触媒 | Production method for water-absorbing resin composition |
| DE102006019157A1 (en) * | 2006-04-21 | 2007-10-25 | Stockhausen Gmbh | Production of high-permeability, superabsorbent polymer structures |
| DE102006039205A1 (en) * | 2006-08-22 | 2008-03-20 | Stockhausen Gmbh | On renewable raw materials based acrylic acid and water-absorbing polymer structures and processes for their preparation by dehydration |
| JPWO2009072232A1 (en) * | 2007-12-07 | 2011-04-21 | 三洋化成工業株式会社 | Water-retaining agent and water-absorbing gel composition excellent in light resistance |
| JP5477193B2 (en) | 2010-06-24 | 2014-04-23 | 富士ゼロックス株式会社 | Silica particles and method for producing the same |
| JP5488255B2 (en) | 2010-06-25 | 2014-05-14 | 富士ゼロックス株式会社 | Silica particles and method for producing the same |
| JP5724401B2 (en) | 2011-01-19 | 2015-05-27 | 富士ゼロックス株式会社 | Resin particles and method for producing the same |
| JP5741005B2 (en) | 2011-01-20 | 2015-07-01 | 富士ゼロックス株式会社 | Resin particles and method for producing the same |
| EP2479208A1 (en) * | 2011-01-19 | 2012-07-25 | Fuji Xerox Co., Ltd. | Resin particle and method for producing the same |
| JP5831378B2 (en) | 2011-12-01 | 2015-12-09 | 富士ゼロックス株式会社 | Silica composite particles and method for producing the same |
| JP5915555B2 (en) | 2013-01-28 | 2016-05-11 | 富士ゼロックス株式会社 | Silica composite particles and method for producing the same |
| CN105164186B (en) | 2013-03-27 | 2017-08-08 | 住友精化株式会社 | The manufacture method of water absorbency resin composition |
| KR102452567B1 (en) | 2019-01-07 | 2022-10-06 | 주식회사 엘지화학 | Super absorbent polymer and preparation method thereof |
| JPWO2025013774A1 (en) | 2023-07-07 | 2025-01-16 |
-
1998
- 1998-04-03 JP JP09165798A patent/JP4047443B2/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH11286611A5 (en) | ||
| CN109735154B (en) | Long-acting antibacterial agent, long-acting antibacterial agent with immediate effect and preparation method thereof | |
| US4871396A (en) | Granular composition and dentifrice containing the same | |
| RU2002101923A (en) | Chewing gum containing encapsulated abrasive filler | |
| JP3471514B2 (en) | Resin composition for semiconductor encapsulation and hygroscopic filler used therein | |
| TR200201116T2 (en) | Hair care compositions containing granular ingredients. | |
| ZA200304130B (en) | Bone cement mixture and X-ray contrast medium as well as method for their preparation. | |
| JPH0680527A (en) | Antimicrobial agent | |
| CN101060866A (en) | Molecular sieve materials having increased particle size forthe formation of blood clots | |
| JP6139994B2 (en) | Process for producing dentifrice granules | |
| JPH0261406B2 (en) | ||
| US5362517A (en) | Methods of making crystalline-coated polymeric materials | |
| RU2019132821A (en) | CARRIER COMPOSITION FOR BONE REPLACEMENT MATERIALS | |
| JPH06127932A (en) | Silica supporting metal oxide and method for producing the same | |
| JP3292726B2 (en) | Aluminosilicate antibacterial agent | |
| JPH07196310A (en) | Amorphous silica granular material and method for producing the same | |
| JP2840601B2 (en) | Solid porous silica beads containing metal compound, method for producing the same, and powder deodorant | |
| TWI901589B (en) | Composition containing particles | |
| JPH0275700A (en) | Covered clay granule | |
| CN107754762A (en) | Spherical filtrate, filter cartridge, oronasal mask and preparation method for haze | |
| JP2921058B2 (en) | Cosmetics containing non-porous spherical silica | |
| JP2000007400A5 (en) | ||
| CN104394833B (en) | Method for producing granules for teeth polishing agent | |
| JP2915253B2 (en) | Method for producing spherical apatite composite particles | |
| JPH09241322A (en) | Method for producing water absorbent resin composition |