发明名称 |
WATER ABSORBENT, MANUFACTURING METHOD THEREFOR, AND ABSORBING MATERIAL AND ABSORPTIVE ARTICLE USING THE WATER ABSORBENT |
摘要 |
PROBLEM TO BE SOLVED: To obtain a water absorbent from which a absorptive article showing high absorption capacity in any situation can be easily manufactured. SOLUTION: The water absorbent comprises a water soluble vinyl monomer (a1) and/or a vinyl monomer (a2) producing the water soluble vinyl monomer (a1) by its hydrolysis, and a crosslinked polymer containing a cross linking agent as its essential constitutional unit, and satisfies the formulas (1): (Y)≥-1.14(X)+69.5 and (2): (X)=((x1)<SP>2</SP>+4×(x2)<SP>2</SP>)<SP>1/2</SP>[wherein (x1) is an amount of water retention of the water absorbent (g/g) after 1 hour dipping in physiological saline; (x2) is an absorption amount of the water absorbent (g/g) after 1 hour dipping in physiological saline under a load of 0.9 psi; and (Y) is a flow rate of physiological saline (ml/min) under a load of 0.3 psi after dipping the water absorbent in the physiological saline for one hour]. COPYRIGHT: (C)2003,JPO
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申请公布号 |
JP2003225565(A) |
申请公布日期 |
2003.08.12 |
申请号 |
JP20020322754 |
申请日期 |
2002.11.06 |
申请人 |
SAN-DIA POLYMER LTD |
发明人 |
SATAKE SOICHI;OTA YOSHIHISA |
分类号 |
A61F13/53;A61F13/49;A61L15/60;B01J20/26;(IPC1-7):B01J20/26 |
主分类号 |
A61F13/53 |
代理机构 |
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代理人 |
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地址 |
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