基本信息:
- 专利标题： PARTICULATE WATER ABSORBENT AND PROCESS FOR PRODUCTION THEREOF
- 专利标题（中）：颗粒吸水剂及其生产方法
- 申请号：US13498780 申请日：2010-09-29
- 公开(公告)号：US20120184670A1 公开(公告)日：2012-07-19
- 发明人： Taishi Kobayashi , Motohiro Imura , Taku Iwamura , Katsuyuki Wada , Kozo Nogi , Yoshiro Mitsukami , Masato Abe , Hiroko Ueda , Koji Honda
- 申请人： Taishi Kobayashi , Motohiro Imura , Taku Iwamura , Katsuyuki Wada , Kozo Nogi , Yoshiro Mitsukami , Masato Abe , Hiroko Ueda , Koji Honda
- 申请人地址： JP Osaka
- 专利权人： Nippon Shokubai Co., Ltd.
- 当前专利权人： Nippon Shokubai Co., Ltd.
- 当前专利权人地址： JP Osaka
- 优先权： JP2009-224756 20090929; JP2010-084530 20100331
- 国际申请： PCT/JP2010/066957 WO 20100929
- 主分类号： C08L33/02
- IPC分类号： C08L33/02
摘要：
A particulate water absorbing agent of the present invention is a water absorbing agent containing a water absorbing resin as a main component, the particulate water absorbing agent containing a polyvalent metal cation and satisfying: (1) the polyvalent metal cation is contained in an amount between 0.001 wt % and 5 wt % relative to the amount of the water absorbing agent; (2) an absorbency without pressure (CRC) is not less than 28 (g/g) and an absorbency against pressure (AAP 4.83 kPa) is not less than 10 (g/g); (3) the absorbency against pressure and the absorbency without pressure satisfy 77≦AAP (4.83 kPa)+1.8×CRC≦100; and (4) a moisture content of the water absorbing agent is between 5 wt % and 20 wt %. This provides a water absorbing agent which has blocking resistance after moisture absorption, is excellent in stability to shock and suppresses Re-Wet when used in a diaper.
摘要（中）：
本发明的颗粒状吸水剂是含有吸水性树脂作为主要成分的吸水剂，含有多价金属阳离子的颗粒状吸水剂，满足：（1）多价金属阳离子的含量为 0.001重量％和5重量％; （2）无压吸收率（CRC）不小于28（g / g），抗压吸收性（AAP 4.83kPa）不小于10（g / g）; （3）抗压吸收性和无压吸收性满足77＆nlE; AAP（4.83kPa）+ 1.8×CRC＆nlE; 100; 和（4）吸水剂的水分含量在5重量％至20重量％之间。 这提供了一种在吸湿后具有抗粘连性的吸水剂，对休克的稳定性优异，并且当在尿布中使用时抑制Re-Wet。