发明名称 |
PROCESS FOR PRODUCING WATER-ABSORBING RESIN |
摘要 |
In obtaining a water-absorbing resin with high property in high productivity, produced a production method for a water-absorbing resin in high property and stably. Provided is a production method for a water-absorbing resin, comprising: a step for polymerizing an acrylic acid aqueous solution; a step for drying the resultant water-containing gel; a step for pulverizing and classifying the dried substance; and a step for surface cross-linking after classification, wherein a hopper having an inclination angle of a cone part of equal to or larger than 45 degree, and a drawing rate of 30 to 80% is used.
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申请公布号 |
US2011003926(A1) |
申请公布日期 |
2011.01.06 |
申请号 |
US20090922203 |
申请日期 |
2009.03.13 |
申请人 |
NIPPON SHOKUBAL CO., LTD. |
发明人 |
NOGI KOZO;OSHIZAKI KUNIHIKO;MATSUMOTO KOJI |
分类号 |
C08L33/06;C08F220/06;C08K3/10 |
主分类号 |
C08L33/06 |
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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