Title:
SELF-SUPPORTING HYDROGEL AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/088289
Kind Code:
A1
Abstract:
[Problem] To provide a polymer/nanoparticle composite hydrogel having outstanding mechanical properties and elongation properties, and which can be produced with general-purpose materials which can be obtained easily in industrial terms. [Solution] A self-supporting hydrogel containing a silicate (A), a polyalkylene glycol (B) and a silicate dispersant (C), the hydrogel being characterized in that the polyalkylene glycol (B) has a weight-average molecular weight, number-average molecular weight or viscosity-average molecular weight of 500,000 to 20,000,000, and with respect to 100% by mass of the hydrogel, the polyalkylene glycol (B) accounts for more than 2% by mass but not more than 20% by mass. A method for producing the self-supporting hydrogel is also provided.
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Inventors:
TAKENO HIROYUKI (JP)
NAGAI SHIORI (JP)
NAKAMURA ARISA (JP)
NAGAI SHIORI (JP)
NAKAMURA ARISA (JP)
Application Number:
PCT/JP2018/041028
Publication Date:
May 09, 2019
Filing Date:
November 05, 2018
Export Citation:
Assignee:
UNIV GUNMA NAT UNIV CORP (JP)
International Classes:
C08L71/02; B01J13/00; C08J3/075; C08K3/34; C08K5/52
Domestic Patent References:
| WO2011018995A1 | 2011-02-17 | |||
| WO2011001657A1 | 2011-01-06 | |||
| WO2014046136A1 | 2014-03-27 | |||
| WO2014046127A1 | 2014-03-27 | |||
| WO2018164003A1 | 2018-09-13 |
Foreign References:
| KR20070040173A | 2007-04-16 | |||
| US20150126665A1 | 2015-05-07 | |||
| JP2002053629A | 2002-02-19 | |||
| JP2009274924A | 2009-11-26 |
Other References:
BAGHDADI, A. HOSSEIN ET AL.: "Long-term aging effects on the rheology of neat laponite and laponite-PEO dispersions", RHEOLOGICA ACTA, vol. 47, no. 3, 2008, pages 349 - 357, XP019589171
MORARIU, SIMONA ET AL.: "Effect of Temperature and Aging Time on the Rheological Behavior of Aqueous Poly(ethylene glycol)/Laponite RD Dispersions", THE JOURNAL OF PHYSICAL CHEMISTRY B, vol. 116, 2012, pages 48 - 54, XP055555139, DOI: doi:10.1021/jp208136g
K. HARAGUCHI ET AL., ADV. MATER., vol. 14, no. 16, 2002, pages 1120
H. A. BAGHDADIJ. PARRELLAS. R. BHATIA, RHEOL ACTA, vol. 47, 2008, pages 349 - 357
See also references of EP 3705533A4
MORARIU, SIMONA ET AL.: "Effect of Temperature and Aging Time on the Rheological Behavior of Aqueous Poly(ethylene glycol)/Laponite RD Dispersions", THE JOURNAL OF PHYSICAL CHEMISTRY B, vol. 116, 2012, pages 48 - 54, XP055555139, DOI: doi:10.1021/jp208136g
K. HARAGUCHI ET AL., ADV. MATER., vol. 14, no. 16, 2002, pages 1120
H. A. BAGHDADIJ. PARRELLAS. R. BHATIA, RHEOL ACTA, vol. 47, 2008, pages 349 - 357
See also references of EP 3705533A4
Attorney, Agent or Firm:
HANABUSA PATENT & TRADEMARK OFFICE (JP)
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