Title:
METHOD FOR PRODUCING POLYSACCHARIDE DERIVATIVE AND LIGNIN DERIVATIVE
Document Type and Number:
WIPO Patent Application WO/2016/068053
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method for producing a polysaccharide derivative by esterification, or etherification or the like, while maintaining a high molecular weight by using a polysaccharide such as cellulose as the starting material, and to do so without using a catalyst, a cocatalyst, or an active compound. Moreover, the purpose of the present invention is to provide a method for producing a cellulose derivative directly in a separated state from a biomass containing lignocellulose. This method for producing the polysaccharide derivative is characterized in that the reaction is performed in a mixture comprising a starting material containing a polysaccharide, an ionic liquid which is capable of producing a carbene and in which the pKa in DMSO of the conjugate acid of the anion is 12 to 19, and a chain-like or cyclic ester compound or an epoxy compound. Preferably a biomass starting material containing lignocellulose is used as the starting material containing polysaccharide.
Inventors:
KAKUCHI RYOHEI (JP)
NINOMIYA KAZUAKI (JP)
SHIBATA YOSHIKI (JP)
UZAWA KIYOSHI (JP)
OGOSHI TOMOKI (JP)
MAEDA KATSUHIRO (JP)
IKAI TOMOYUKI (JP)
TAKAHASHI KENJI (JP)
NINOMIYA KAZUAKI (JP)
SHIBATA YOSHIKI (JP)
UZAWA KIYOSHI (JP)
OGOSHI TOMOKI (JP)
MAEDA KATSUHIRO (JP)
IKAI TOMOYUKI (JP)
TAKAHASHI KENJI (JP)
Application Number:
PCT/JP2015/080036
Publication Date:
May 06, 2016
Filing Date:
October 23, 2015
Export Citation:
Assignee:
UNIV KANAZAWA NAT UNIV CORP (JP)
KANAZAWA INST OF TECHNOLOGY (JP)
KANAZAWA INST OF TECHNOLOGY (JP)
International Classes:
C08B3/00; C08B11/00; C08B37/08; C08H7/00
Domestic Patent References:
| WO2009102307A1 | 2009-08-20 |
Foreign References:
| JP2008266625A | 2008-11-06 | |||
| JP2012519740A | 2012-08-30 | |||
| JP2010518244A | 2010-05-27 | |||
| JP2010518245A | 2010-05-27 | |||
| JP2010518166A | 2010-05-27 | |||
| JP2011530643A | 2011-12-22 | |||
| JP2012207136A | 2012-10-25 |
Other References:
CELLULOSE NO JITEN, 10 November 2000 (2000-11-10), pages 410 - 413, XP009502473
KOEHLER SARAH ET AL.: "Interactions of ionic liquids with polysaccharides 1. Unexpected acetylation of Cellulose with 1-ethyl-3- methylimidazolium acetate", MACROMOLECULAR RAPID COMMUNICATIONS, vol. 28, no. 24, 2007, pages 2311 - 2317, XP055270739, DOI: doi:10.1002/marc.200700529
CHAO YI CHEN ET AL.: "Per-O-acetylation of Cellulose in Dimethyl Sulfoxide with Catalyzed Transesterification", JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, vol. 62, no. 15, 31 March 2014 (2014-03-31), pages 3446 - 3452, XP055435865
PEI LIJUN ET AL.: "Synthesis and Antibacterial Activity of Alkylated Chitosan Under Basic Ionic Liquid Conditions", JOURNAL OF APPLIED POLYMER SCIENCE, vol. 131, no. 7, 5 April 2014 (2014-04-05), pages 40052 - 1-40052.7
See also references of EP 3214097A4
KOEHLER SARAH ET AL.: "Interactions of ionic liquids with polysaccharides 1. Unexpected acetylation of Cellulose with 1-ethyl-3- methylimidazolium acetate", MACROMOLECULAR RAPID COMMUNICATIONS, vol. 28, no. 24, 2007, pages 2311 - 2317, XP055270739, DOI: doi:10.1002/marc.200700529
CHAO YI CHEN ET AL.: "Per-O-acetylation of Cellulose in Dimethyl Sulfoxide with Catalyzed Transesterification", JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, vol. 62, no. 15, 31 March 2014 (2014-03-31), pages 3446 - 3452, XP055435865
PEI LIJUN ET AL.: "Synthesis and Antibacterial Activity of Alkylated Chitosan Under Basic Ionic Liquid Conditions", JOURNAL OF APPLIED POLYMER SCIENCE, vol. 131, no. 7, 5 April 2014 (2014-04-05), pages 40052 - 1-40052.7
See also references of EP 3214097A4
Attorney, Agent or Firm:
HIRAKI Yusuke et al. (JP)
Yusuke Hiraki (JP)
Yusuke Hiraki (JP)
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