JP2011218357A5 - 吸水剤 - Google Patents
吸水剤 Download PDFInfo
- Publication number
- JP2011218357A5 JP2011218357A5 JP2011158357A JP2011158357A JP2011218357A5 JP 2011218357 A5 JP2011218357 A5 JP 2011218357A5 JP 2011158357 A JP2011158357 A JP 2011158357A JP 2011158357 A JP2011158357 A JP 2011158357A JP 2011218357 A5 JP2011218357 A5 JP 2011218357A5
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- JP
- Japan
- Prior art keywords
- absorbing agent
- water absorbing
- water
- under pressure
- agent according
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims 13
- 239000006096 absorbing agent Substances 0.000 title claims 12
- 239000011780 sodium chloride Substances 0.000 claims 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 5
- 239000002245 particle Substances 0.000 claims 4
- 238000010521 absorption reaction Methods 0.000 claims 3
- 238000010382 chemical cross-linking Methods 0.000 claims 3
- 239000002250 absorbent Substances 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- 230000035699 permeability Effects 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 150000003839 salts Chemical class 0.000 claims 2
- 238000002835 absorbance Methods 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical class [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 150000002736 metal compounds Chemical class 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- 239000000178 monomer Substances 0.000 claims 1
- 125000004437 phosphorous atoms Chemical group 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 230000000379 polymerizing Effects 0.000 claims 1
Claims (7)
- アクリル酸およびその塩を含む単量体を重合して得られる架橋構造を有する吸水性樹脂が表面架橋された吸水性樹脂粒子を主成分とする吸水剤であって、
該吸水剤が、下記（ａ）〜（ｃ）および（ｆ），（ｇ）の要件を満たす吸水剤。
（ａ）８５０μｍ未満で１５０μｍ以上の粒子が全体の９０重量％以上
（ｂ）粒度分布の対数標準偏差（σζ）が０．２５〜０．４５
（ｃ）０．９重量％食塩水の加圧下吸収倍率（ＡＡＰｓ）が２０ｇ／ｇ以上
（ｆ）０．９重量％食塩水の吸収倍率（ＣＲＣｓ）が１５ｇ／ｇ以上、２９ｇ／ｇ未満
（ｇ）以下の式２で表される加圧下化学架橋指数が１００以上
加圧下化学架橋指数＝（ＣＲＣｓ）＋（ＡＡＰｄｗ） （式２）
ＣＲＣｓ（ｇ／ｇ）：０．９重量％食塩水の吸収倍率
ＡＡＰｄｗ（ｇ／ｇ）：純水の加圧下吸収倍率 - 前記加圧下化学架橋指数が１１５以上である請求項１に記載の吸水剤。
- 前記吸水剤がリン原子を含む請求項１または２に記載の吸水剤。
- 前記吸水剤の食塩水流れ誘導性（ＳＦＣ）が３０〜３０００（１０−７・ｃｍ３ ・ｓ・ｇ−１）である請求項１〜３のいずれか一つに記載の吸水剤。
- 前記吸水剤の食塩水流れ誘導性（ＳＦＣ）が１００〜２５０（１０−７・ｃｍ３ ・ｓ・ｇ−１）である請求項１〜４のいずれか一つに記載の吸水剤。
- 前記吸水剤が、鉱産物、アルミニウム化合物類、その他多価金属塩類、親水性のアモルファスシリカ類、酸化物複合体類、からなる群より選ばれる液透過性向上剤を含む請求項１〜５のいずれか一つに記載の吸水剤。
- 前記液透過性向上剤が多価金属化合物である請求項６に記載の吸水剤。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011158357A JP4932954B2 (ja) | 2003-09-19 | 2011-07-19 | 吸水剤 |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003329110 | 2003-09-19 | ||
| JP2003329110 | 2003-09-19 | ||
| JP2003329109 | 2003-09-19 | ||
| JP2003329109 | 2003-09-19 | ||
| JP2011158357A JP4932954B2 (ja) | 2003-09-19 | 2011-07-19 | 吸水剤 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004272485A Division JP4920183B2 (ja) | 2003-09-19 | 2004-09-17 | 吸水剤 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012004481A Division JP5090571B2 (ja) | 2003-09-19 | 2012-01-12 | 吸水剤の製法 |
| JP2012004482A Division JP5090572B2 (ja) | 2003-09-19 | 2012-01-12 | 吸水剤の製法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2011218357A JP2011218357A (ja) | 2011-11-04 |
| JP2011218357A5 true JP2011218357A5 (ja) | 2012-03-01 |
| JP4932954B2 JP4932954B2 (ja) | 2012-05-16 |
Family
ID=34380341
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004272485A Active JP4920183B2 (ja) | 2003-09-19 | 2004-09-17 | 吸水剤 |
| JP2011158357A Active JP4932954B2 (ja) | 2003-09-19 | 2011-07-19 | 吸水剤 |
| JP2012004482A Active JP5090572B2 (ja) | 2003-09-19 | 2012-01-12 | 吸水剤の製法 |
| JP2012004481A Active JP5090571B2 (ja) | 2003-09-19 | 2012-01-12 | 吸水剤の製法 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004272485A Active JP4920183B2 (ja) | 2003-09-19 | 2004-09-17 | 吸水剤 |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012004482A Active JP5090572B2 (ja) | 2003-09-19 | 2012-01-12 | 吸水剤の製法 |
| JP2012004481A Active JP5090571B2 (ja) | 2003-09-19 | 2012-01-12 | 吸水剤の製法 |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US7803880B2 (ja) |
| EP (2) | EP1677845B2 (ja) |
| JP (4) | JP4920183B2 (ja) |
| KR (1) | KR100819613B1 (ja) |
| CN (1) | CN100391548C (ja) |
| BR (1) | BRPI0414531A (ja) |
| TW (1) | TWI308570B (ja) |
| WO (1) | WO2005027986A1 (ja) |
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