发明名称 |
PROCESS FOR PRODUCTION OF WATER-ABSORBABLE RESIN |
摘要 |
<p>[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; solid content of the hydrogel supplied to the drying step is 35% by weight or more, and thickness variation rate (1) represented by the following EXPRESSION 1 of the hydrogel loaded onto through-flow belt in the continuous through-flow belt, is 1.05 to 5: EXPRESSION 1 Thickness variation rate 1 = Maximum thickness of hydrogel in a width direction of the through - flow belt / Average thickness of hydrogel in a width direction of the through - flow belt .</p> |
申请公布号 |
EP2471848(B1) |
申请公布日期 |
2014.08.06 |
申请号 |
EP20100812059 |
申请日期 |
2010.08.30 |
申请人 |
NIPPON SHOKUBAI CO., LTD. |
发明人 |
MATSUMOTO, KOJI;NOGI, KOZO;FUJINO, SHINICHI;DAIROKU, YORIMICHI;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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代理人 |
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主权项 |
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地址 |
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