发明名称 |
PROCESS FOR PRODUCTION OF WATER-ABSORBING RESINS |
摘要 |
There is provided a production method for a water-absorbing resin for stably and continuously producing the water-absorbing resin with industrially high property, in particular, the water-absorbing resin with high liquid permeation. A method of the present invention relates to a production method for a water-absorbing resin including: a polymerization step of an aqueous solution of an unsaturated monomer; a drying step of the resultant hydrogel polymer; and a surface cross-linking step after drying; characterized by including a pneumatic transportation step for pneumatic transporting the water-absorbing resin powder substance in a pipeline with a surface roughness (Rz) of the inner surface of equal to or smaller than 800 nm, by using gas with a dew point of −5° C. to −100° C.
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申请公布号 |
US2011028670(A1) |
申请公布日期 |
2011.02.03 |
申请号 |
US20090934808 |
申请日期 |
2009.03.26 |
申请人 |
NIPPON SHOKUBAL CO., LTD. |
发明人 |
MATSUMOTO KOJI;NOGI KOZO;ISHIZAKI KUNIHIKO |
分类号 |
C08F120/06 |
主分类号 |
C08F120/06 |
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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