发明名称 |
AN AQUEOUS-LIQUID-ABSORBING AGENT AND ITS PRODUCTION PROCESS |
摘要 |
An aqueous-liquid-absorbing agent according to this invention is the one comprising water-absorbent resin particles as essential components, wherein the particles are obtained by a process including the step of polymerizing a water-soluble ethylenically unsaturated monomer and have a crosslinked structure in their inside; with the agent exhibiting FSR of not less than 0.2 g/g/s, CRC of 5 to 25 g/g, SFC of not less than 400 x 10-7 m3 s/g, and a wet porosity of not less than 20 %. A process according to this invention for obtaining such an agent is characterized by comprising the steps of: obtaining a hydrogel from an aqueous monomer solution including a water-soluble ethylenically unsaturated monomer and an internal-crosslinking agent of not less than 0. 2 mol % in ratio to the monomer; and then extruding this hydrogel from a perforated structure having perforation diameters in the range of 0.3 to 6.4 mm to thereby pulverize the hydrogel. ® KIPO & WIPO 2007
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申请公布号 |
KR20070007162(A) |
申请公布日期 |
2007.01.12 |
申请号 |
KR20067022162 |
申请日期 |
2006.10.25 |
申请人 |
NIPPON SHOKUBAI CO., LTD. |
发明人 |
IKEUCHI HIROYUKI;TORII KAZUSHI;SAKAMOTO SHIGERU;IWAMURA TAKU;MACHIDA SAYAKA |
分类号 |
B01J20/22;A61F13/15;A61F13/49;A61F13/53;B01J20/00;B01J20/26;B01J20/30 |
主分类号 |
B01J20/22 |
代理机构 |
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