Title:
HYDROGEL
Document Type and Number:
WIPO Patent Application WO/2011/132800
Kind Code:
A1
Abstract:
Disclosed is a hydrogel which comprises a polyanionic polysaccharide derivative with a hydrophobic group introduced by covalent bonding and a salt solution with a salt concentration of 50mM-200mM. The manufacturing method for the hydrogel includes: a step wherein a compound including a dilution of a hydrogel with an aggregated structure with an average particle size of 100-200nm, a polyanionic polysaccharide derivative with a hydrophobic introduced thereto, and a salt solution of 50-200mM is prepared; and a step wherein the compound is heat-treated. The hydrogel possesses long-term stability, and can be filtered through a porous filter with a pore diameter of 5μm or greater.
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Inventors:
YAMAMOTO YUKA (JP)
KANEKO HIROAKI (JP)
ITO MASAYA (JP)
TANAKA TAISHI (JP)
KANEKO HIROAKI (JP)
ITO MASAYA (JP)
TANAKA TAISHI (JP)
Application Number:
PCT/JP2011/060342
Publication Date:
October 27, 2011
Filing Date:
April 21, 2011
Export Citation:
Assignee:
TEIJIN LTD (JP)
YAMAMOTO YUKA (JP)
KANEKO HIROAKI (JP)
ITO MASAYA (JP)
TANAKA TAISHI (JP)
YAMAMOTO YUKA (JP)
KANEKO HIROAKI (JP)
ITO MASAYA (JP)
TANAKA TAISHI (JP)
International Classes:
C08L1/08; A61K8/02; A61K8/20; A61K8/24; A61K8/73; A61K47/36; A61L31/00; C08K3/00
Domestic Patent References:
| WO2010016611A1 | 2010-02-11 | |||
| WO2008096894A1 | 2008-08-14 | |||
| WO2007015579A1 | 2007-02-08 | |||
| WO2007015579A1 | 2007-02-08 | |||
| WO1996037519A1 | 1996-11-28 | |||
| WO2010016611A1 | 2010-02-11 |
Foreign References:
| JP2010035744A | 2010-02-18 | |||
| JP2008189829A | 2008-08-21 | |||
| JP2006296916A | 2006-11-02 | |||
| JP2006296916A | 2006-11-02 | |||
| US6869938B1 | 2005-03-22 | |||
| JP2004018750A | 2004-01-22 |
Other References:
See also references of EP 2562212A4
Attorney, Agent or Firm:
MIHARA, Hideko (JP)
Hideko Mihara (JP)
Hideko Mihara (JP)
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Claims: