JP2005097519A5 - Water-absorbent resin composition, use thereof and production method thereof - Google Patents
Water-absorbent resin composition, use thereof and production method thereof Download PDFInfo
- Publication number
- JP2005097519A5 JP2005097519A5 JP2004054867A JP2004054867A JP2005097519A5 JP 2005097519 A5 JP2005097519 A5 JP 2005097519A5 JP 2004054867 A JP2004054867 A JP 2004054867A JP 2004054867 A JP2004054867 A JP 2004054867A JP 2005097519 A5 JP2005097519 A5 JP 2005097519A5
- Authority
- JP
- Japan
- Prior art keywords
- water
- absorbent resin
- resin composition
- composition according
- particles
- 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
本発明は、紙おむつや生理ナプキン、いわゆる失禁パッド等の衛生材料に用いられる吸水性樹脂組成物、その用途及びその製造方法に関するものである。 The present invention relates to a water-absorbent resin composition used for sanitary materials such as disposable diapers and sanitary napkins, so-called incontinence pads , its use, and its production method.
本発明が解決しようとする課題は、ゲルブロッキングを起こし難く、通液性、液拡散性に優れるとともに、無加圧下吸収倍率、加圧下吸収倍率、毛管吸収倍率等の吸収性能も高く、しかも、実生産時や実使用時などにおける物理的ダメージにも強い、吸水性樹脂組成物、その用途およびその製造方法を提供することにある。 The problem to be solved by the present invention is less likely to cause gel blocking, excellent in liquid permeability and liquid diffusibility, and also has high absorption performance such as absorption capacity under no pressure, absorption capacity under pressure, capillary absorption capacity, An object of the present invention is to provide a water-absorbent resin composition that is resistant to physical damage during actual production or actual use , its use, and its production method.
すなわち、本発明にかかる吸水性樹脂組成物は、アクリル酸および／またはその塩を含む単量体を重合して得られる吸水性樹脂粒子を含む吸水性樹脂組成物であって、該組成物の質量平均粒子径が１００〜６００μｍであり、水溶性多価金属塩粒子および表面架橋された吸水性樹脂粒子を含む。
本発明にかかる吸水性樹脂組成物は、また、アクリル酸および／またはその塩を含む単量体を重合して得られる吸水性樹脂粒子および水溶性多価金属塩粒子を含む吸水性樹脂組成物であって、該組成物の質量平均粒子径が１００〜６００μｍであり、生理食塩水流れ誘導性（ＳＦＣ）が少なくとも５０（×１０ −７ ・ｃｍ ３ ・ｓ・ｇ −１ ）であり、下式で規定される生理食塩水流れ誘導性（ＳＦＣ）保持率が４０％以上である。
ＳＦＣ保持率（％）＝［ＳＦＣ（２ｈｒ）／ＳＦＣ（１ｈｒ）］×１００
本発明にかかる吸水性樹脂組成物は、水溶性多価金属塩粒子が結晶水を有するアルミニウム塩であることが好ましい。
That is, the water absorbent resin composition according to the present invention is a water absorbent resin composition comprising water absorbent resin particles obtained by polymerizing a monomer containing acrylic acid and / or a salt thereof, The mass average particle diameter is 100 to 600 μm, and includes water-soluble polyvalent metal salt particles and surface-crosslinked water-absorbing resin particles.
The water-absorbent resin composition according to the present invention is also a water-absorbent resin composition comprising water-absorbent resin particles obtained by polymerizing monomers containing acrylic acid and / or a salt thereof and water-soluble polyvalent metal salt particles. Wherein the composition has a mass average particle size of 100-600 μm, a saline flow conductivity (SFC) of at least 50 (× 10 −7 · cm 3 · s · g −1 ), Saline flow conductivity (SFC) retention defined by the formula is 40% or more.
SFC retention rate (%) = [SFC (2 hr) / SFC (1 hr)] × 100
The water-absorbent resin composition according to the present invention is preferably an aluminum salt in which water-soluble polyvalent metal salt particles have crystal water.
本発明にかかる吸水性樹脂組成物は、吸水性樹脂粒子が多価アルコールで表面架橋されたものであることが好ましい。
本発明にかかる吸水性樹脂組成物は、吸水性樹脂粒子の少なくとも一部が造粒体であることが好ましい。
本発明にかかる吸水性樹脂組成物は、無加圧下吸収倍率（ＣＲＣ）が２０ｇ／ｇ以上、０．７ｐｓｉでの加圧下吸収倍率が２０ｇ／ｇ以上であることが好ましい。
本発明にかかる吸水性樹脂組成物は、発塵度が０．２５ｍｇ／ｍ ３ であることが好ましい。
本発明にかかる吸水性樹脂組成物は、接触角が４５°以下であることが好ましい。
本発明にかかる吸水性樹脂組成物は、水溶性多価金属塩粒子の質量平均粒子径が４００μｍ以下、かつ、１５０μｍ以下の粒子を２０重量％以上含むものであることが好ましい。
本発明にかかる吸水性樹脂組成物は、下式で規定される吸水性樹脂組成物のペイントシェーカー（ＰＳ、８００Ｃｙｃｌｅ／分で３０分間浸盪）試験後の生理食塩水流れ誘導性（ＳＦＣ）保持率が７０％以上であることが好ましい。
ＰＳ後保持率（％）＝［ＳＦＣ（ＰＳ後）／ＳＦＣ（ＰＳ前）］×１００
本発明にかかる糞、尿または血液の吸収用衛生材料は、前記吸水性樹脂組成物を含むことを特徴とする。
The water absorbent resin composition according to the present invention is preferably such that the water absorbent resin particles are surface-crosslinked with a polyhydric alcohol.
In the water absorbent resin composition according to the present invention, at least a part of the water absorbent resin particles is preferably a granulated body.
The water-absorbing resin composition according to the present invention preferably has an absorption capacity without load (CRC) of 20 g / g or more and an absorption capacity under pressure at 0.7 psi of 20 g / g or more.
The water absorbent resin composition according to the present invention preferably has a dust generation degree of 0.25 mg / m 3 .
The water absorbent resin composition according to the present invention preferably has a contact angle of 45 ° or less.
The water-absorbent resin composition according to the present invention preferably contains 20% by weight or more of particles having a mass average particle diameter of 400 μm or less and 150 μm or less of water-soluble polyvalent metal salt particles.
The water-absorbent resin composition according to the present invention has a saline flow conductivity (SFC) retention after a paint shaker (PS, soaked for 30 minutes at 800 cycles / min) test of the water-absorbent resin composition defined by the following formula: The rate is preferably 70% or more.
Retention rate after PS (%) = [SFC (after PS) / SFC (before PS)] × 100
A sanitary material for absorbing feces, urine, or blood according to the present invention includes the water-absorbent resin composition.
本発明によれば、ゲルブロッキングを起こし難く、通液性、液拡散性に優れるとともに、無加圧下吸収倍率、加圧下吸収倍率、毛管吸収倍率等の吸収性能も高く、しかも、実生産時や実使用時などにおける物理的ダメージにも強い、吸水性樹脂組成物、その用途およびその製造方法を提供できる。 According to the present invention, it is difficult to cause gel blocking, and has excellent liquid permeability and liquid diffusibility, and also has high absorption performance such as absorption capacity under no pressure, absorption capacity under pressure, capillary absorption capacity, etc. It is possible to provide a water-absorbent resin composition that is resistant to physical damage during actual use , its use, and its production method.
Claims (16)
該組成物の質量平均粒子径が１００〜６００μｍであり、水溶性多価金属塩粒子および表面架橋された吸水性樹脂粒子を含む、吸水性樹脂組成物。 A water absorbent resin composition comprising water absorbent resin particles obtained by polymerizing a monomer containing acrylic acid and / or a salt thereof,
A water-absorbent resin composition having a mass average particle diameter of 100 to 600 μm and comprising water-soluble polyvalent metal salt particles and surface-crosslinked water-absorbent resin particles.
該組成物の質量平均粒子径が１００〜６００μｍであり、生理食塩水流れ誘導性（ＳＦＣ）が少なくとも５０（×１０−７・ｃｍ３・ｓ・ｇ−１）であり、下式で規定される生理食塩水流れ誘導性（ＳＦＣ）保持率が４０％以上である、吸水性樹脂組成物。
ＳＦＣ保持率（％）＝［ＳＦＣ（２ｈｒ）／ＳＦＣ（１ｈｒ）］×１００ A water absorbent resin composition comprising water absorbent resin particles obtained by polymerizing a monomer containing acrylic acid and / or a salt thereof and water soluble polyvalent metal salt particles,
The composition has a mass average particle size of 100 to 600 μm and a saline flow conductivity (SFC) of at least 50 (× 10 −7 · cm 3 · s · g −1 ), and is defined by the following formula: A water-absorbent resin composition having a saline flow conductivity (SFC) retention of 40% or more.
SFC retention rate (%) = [SFC (2 hr) / SFC (1 hr)] × 100
ＰＳ後保持率（％）＝［ＳＦＣ（ＰＳ後）／ＳＦＣ（ＰＳ前）］×１００ The saline flow conductivity (SFC) retention rate after a paint shaker (PS, soaked for 30 minutes at 800 Cycle / min) test of the water absorbent resin composition defined by the following formula is 70% or more. The water absorbent resin composition according to any one of 1 to 9 .
Retention rate after PS (%) = [SFC (after PS) / SFC (before PS)] × 100
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004054867A JP4422509B2 (en) | 2003-03-10 | 2004-02-27 | Water-absorbent resin composition, use thereof and production method thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003063548 | 2003-03-10 | ||
| JP2003310386 | 2003-09-02 | ||
| JP2004054867A JP4422509B2 (en) | 2003-03-10 | 2004-02-27 | Water-absorbent resin composition, use thereof and production method thereof |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2005097519A JP2005097519A (en) | 2005-04-14 |
| JP2005097519A5 true JP2005097519A5 (en) | 2007-03-29 |
| JP4422509B2 JP4422509B2 (en) | 2010-02-24 |
Family
ID=34468252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004054867A Expired - Lifetime JP4422509B2 (en) | 2003-03-10 | 2004-02-27 | Water-absorbent resin composition, use thereof and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4422509B2 (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006019157A1 (en) | 2006-04-21 | 2007-10-25 | Stockhausen Gmbh | Production of high-permeability, superabsorbent polymer structures |
| JP2008247949A (en) * | 2007-03-29 | 2008-10-16 | San-Dia Polymer Ltd | Absorbing resin particle, absorbent material and absorbent article |
| JP2012218320A (en) * | 2011-04-11 | 2012-11-12 | Sumitomo Seika Chem Co Ltd | Water absorption sheet construct |
| KR101719352B1 (en) | 2013-12-13 | 2017-04-04 | 주식회사 엘지화학 | Super absorbent polymer composition |
| KR101782501B1 (en) | 2014-12-10 | 2017-09-27 | 주식회사 엘지화학 | Preparation method for super absorbent polymer |
| KR102165459B1 (en) | 2016-03-28 | 2020-10-14 | 가부시키가이샤 닛폰 쇼쿠바이 | Absorbent and method for manufacturing the same, and absorbent article using the absorbent |
| KR102590297B1 (en) | 2018-05-16 | 2023-10-18 | 가부시키가이샤 닛폰 쇼쿠바이 | Absorbent resin powder, and method for producing the same |
| CN112703053B (en) | 2018-09-28 | 2024-02-27 | 株式会社日本触媒 | Method for producing water-absorbent resin powder, and water-absorbent resin powder |
| JP6775049B2 (en) * | 2018-12-12 | 2020-10-28 | 住友精化株式会社 | Water-absorbent resin particles |
| US20220015958A1 (en) * | 2018-12-12 | 2022-01-20 | Sumitomo Seika Chemicals Co., Ltd. | Water absorbent resin particles and absorbent article |
| JP6681494B1 (en) * | 2019-01-30 | 2020-04-15 | 住友精化株式会社 | Water absorbent resin particles |
| CN113242865A (en) * | 2018-12-12 | 2021-08-10 | 住友精化株式会社 | Water-absorbent resin particles |
| JP6775051B2 (en) * | 2019-01-30 | 2020-10-28 | 住友精化株式会社 | Absorbent article |
| EP3910004A4 (en) | 2019-01-11 | 2022-10-12 | Nippon Shokubai Co., Ltd. | Water absorbent having water-absorbent resin as main component, and method for producing same |
| US20220088568A1 (en) | 2019-01-11 | 2022-03-24 | Nippon Shokubai Co., Ltd. | Water absorbent agent and method for producing water absorbent agent |
| EP3978552A4 (en) | 2019-05-31 | 2023-06-14 | Nippon Shokubai Co., Ltd. | Production method for water absorbent, and polyacrylic acid (salt) water absorbent resin |
| KR20220123443A (en) | 2020-01-06 | 2022-09-06 | 가부시키가이샤 닛폰 쇼쿠바이 | Absorbents, absorbent resins and absorbent articles |
| CN115209987A (en) | 2020-02-14 | 2022-10-18 | 株式会社日本触媒 | Absorbent, water-absorbing agent, and method for producing water-absorbing agent |
| EP4105242A1 (en) | 2020-02-14 | 2022-12-21 | Nippon Shokubai Co., Ltd. | Water-absorbing resin and manufacturing method for same |
| WO2024024429A1 (en) * | 2022-07-25 | 2024-02-01 | Ｓｄｐグローバル株式会社 | Water absorbent resin composition |
-
2004
- 2004-02-27 JP JP2004054867A patent/JP4422509B2/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2005097519A5 (en) | Water-absorbent resin composition, use thereof and production method thereof | |
| JP4683405B2 (en) | Water-absorbing resin composition and method for producing the same | |
| KR100819613B1 (en) | Water absorbent and producing method of same | |
| JP5410018B2 (en) | Water-absorbent resin composition, method for producing the same, and absorbent article | |
| JP4866733B2 (en) | Method for producing aqueous liquid absorbent | |
| TWI637995B (en) | Particulate superabsorbent polymer composition having improved stability | |
| TW434033B (en) | Absorbent polymer compositions with high sorption capacity and high fluid permeability under an applied pressure | |
| JP6342510B2 (en) | Superabsorbent resin composition | |
| JP4739682B2 (en) | Water absorbent | |
| WO2014034897A1 (en) | Particulate water-absorbing agent and method for manufacturing same | |
| JPH03176065A (en) | Absorbing agent | |
| JP2009173942A5 (en) | Acrylic acid-based water absorbent resin and absorbent article | |
| JP2005288265A (en) | Aqueous liquid absorbent and its manufacturing method | |
| WO2006014031A1 (en) | Particulate water-absorbing agent with water-absorbing resin as main component, method for production of the same, and absorbing article | |
| BRPI0407342B1 (en) | Water absorbing agent | |
| JP2015503645A (en) | Superabsorbent polymer and method for producing crosslinked composition | |
| JP2007525569A (en) | Super absorbent polymer | |
| IL110134A (en) | Polymers capable of absorbing aqueous liquids and body fluids their preparation and use | |
| KR20140038998A (en) | Polyacrylic acid(salt) water-absorbent resin powder, and method for producing same | |
| TW200813131A (en) | Process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution | |
| TW200529894A (en) | Superabsorbent polymer having delayed free water absorption | |
| JP4422509B2 (en) | Water-absorbent resin composition, use thereof and production method thereof | |
| JP2013034942A (en) | Method for producing granular water absorbent | |
| JP4810635B2 (en) | Super absorbent polymer with slow absorption time | |
| JP2708426B2 (en) | Manufacturing method of stabilized superabsorbent resin particles |