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Process for producing water-absorbing resin
专利权人:
Sumio Okuda;Kunihiko Ishizaki;Satoshi Matsumoto;Syuji Kanzaki
发明人:
Syuji Kanzaki,Sumio Okuda,Kunihiko Ishizaki,Satoshi Matsumoto
申请号:
US13634151
公开号:
US09233186B2
申请日:
2011.03.14
申请国别(地区):
US
年份:
2016
代理人:
摘要:
The disclosed process for producing a water-absorbing resin comprising: a polymerization step of polymerizing an aqueous unsaturated monomer; a drying step of drying a particulated water-containing gel-liked crosslinked polymer, obtained in a finely crushing step during the polymerization or after the polymerization; a pulverizing step after the drying, a classification step after the drying, and a surface treatment step after the classification. In the process is, the surface-treatment step is interrupted with a heating treatment apparatus kept in a heated state and thereafter the surface treatment step is restarted.
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