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Title:
METHOD FOR MANUFACTURING A WATER-ABSORBING RESIN
Document Type and Number:
WIPO Patent Application WO/2011/111856
Kind Code:
A1
Abstract:
The disclosed method for manufacturing a water-absorbing resin includes: a polymerization step in which an unsaturated monomer in an aqueous solution is polymerized; and a drying step in which a water-containing cross-linked granular polymer gel, obtained in a microgranulation step during or after polymerization, is dried. Said method is characterized in that the drying step is halted, with a drying machine kept hot, and then subsequently restarted.

Inventors:
KANZAKI SYUJI (JP)
OKUDA SUMIO (JP)
ISHIZAKI KUNIHIKO (JP)
MATSUMOTO SATOSHI (JP)
Application Number:
PCT/JP2011/055977
Publication Date:
September 15, 2011
Filing Date:
March 14, 2011
Export Citation:
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Assignee:
NIPPON CATALYTIC CHEM IND (JP)
KANZAKI SYUJI (JP)
OKUDA SUMIO (JP)
ISHIZAKI KUNIHIKO (JP)
MATSUMOTO SATOSHI (JP)
International Classes:
C08J3/12; B01J20/26; C08F6/00
Domestic Patent References:
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Other References:
See also references of EP 2546285A4
Attorney, Agent or Firm:
UEKI, Kyuichi et al. (JP)
Hisakazu Ueki (JP)
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Claims:



 
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