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Title:
PROCESS FOR PRODUCING WATER-ABSORBING RESIN PARTICLE
Document Type and Number:
WIPO Patent Application WO/2006/068067
Kind Code:
A1
Abstract:
A process for producing water-absorbing resin particles which comprises: mixing a precursor (A) for water-absorbing resin particles with a compound (B) having two or more polymerizable unsaturated groups, the precursor (A) being one obtained by polymerizing a water-soluble ethylenic monomer and the amount of the compound (B) being 0.01-10 parts by weight per 100 parts by weight of the water-soluble ethylenic monomer; and reacting the resultant mixture. The water-absorbing resin particles are usable in, e.g., sanitary materials such as a disposable diaper and sanitary napkin, agricultural or horticultural materials such as a water-holding material and soil-improving material, and industrial materials such as a waterstop material for cables and material for dew condensation prevention.

Inventors:
MATSUDA KENYA
NAWATA YASUHIRO
Application Number:
PCT/JP2005/023224
Publication Date:
June 29, 2006
Filing Date:
December 19, 2005
Export Citation:
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Assignee:
SUMITOMO SEIKA CHEMICALS (JP)
MATSUDA KENYA
NAWATA YASUHIRO
International Classes:
C08F289/00; C08F2/44; C08F265/02
Foreign References:
JPH11333292A1999-12-07
JPH11130968A1999-05-18
JPH05320270A1993-12-03
JPH0517509A1993-01-26
JPH04130113A1992-05-01
JPH01126314A1989-05-18
Attorney, Agent or Firm:
Hosoda, Yoshinori c/o Hosoda International Patent Office (P.O. Box 26 OMM Building 5th Floor, 7-31, Otemae 1-chome, Chuo-ku, Osaka-sh, Osaka 91, JP)
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