发明名称 |
PROCESS FOR PRODUCTION OF WATER-ABSORBABLE RESIN |
摘要 |
[PROBLEM] It is an object of the present invention to efficiently obtain efficiently a water-absorbent resin having excellent property. [SOLUTION] A production method for a water-absorbent resin, comprising: a polymerization step for obtaining hydrogel by subjecting a monomer aqueous solution to a polymerization reaction; and a drying step for drying the hydrogel; wherein drying in the drying step is performed using a continuous through-flow belt-type drying machine; pore opening rate of the through-flow belt in the continuous through-flow belt-type drying machine is 20 to 50%; solid content of the hydrogel supplied to the drying step is 35% by weight or more; and area occupancy rate of the hydrogel is 85 to 100% relative to the through-flow belt.
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申请公布号 |
EP2471847(A1) |
申请公布日期 |
2012.07.04 |
申请号 |
EP20100812058 |
申请日期 |
2010.08.30 |
申请人 |
NIPPON SHOKUBAI CO., LTD. |
发明人 |
FUJINO, SHINICHI;NOGI, KOZO;ISHIZAKI, KUNIHIKO |
分类号 |
C08J3/24;A61L15/00;C08J3/12 |
主分类号 |
C08J3/24 |
代理机构 |
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