吸水剤およびそれを用いた衛生材料
- 专利权人:
- 株式会社日本触媒
- 发明人:
- 足立 芳史,北野 貴洋,藤丸 洋圭,池内 博之,和田 克之
- 申请号：
- JP2004032501
- 公开号：
- JP4979879B2
- 申请日:
- 2004.02.09
- 申请国别(地区):
- JP
- 年份:
- 2012
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a particulate water absorbent showing excellent absorption ability for liquid such as urine and a sanitary material using the same.
SOLUTION: In the particulate water absorbent containing a water absorbing resin which is a closslinked polymer of water soluble unsaturated monomer, the particulate water absorbing resin having particle diameters from 106 &mum or more to below 850 &mum is contained at the amount of not less than 90% by mass for all the mass of the water absorbing resin. In (Formula 1):(salt concentration absorption index)=(absorbing magnification under pressure of 4.83 kPa for a fixed salt concentration aqueous solution)/(absorbing magnification under no load for the fixed salt concentration aqueous solution), a primary salt concentration absorption index which is a salt concentration absorption index when the fixed salt concentration aqueous solution is ion exchange water is to be not less than 0.60.
COPYRIGHT: (C)2005,JPO&NCIPI
- 来源网站：
- 中国工程科技知识中心
