Title:
エポキシ化セルロースの製造方法
Document Type and Number:
Japanese Patent JP7223362
Kind Code:
B2
Abstract:
To provide a production method of epoxidized cellulose, which can perform epoxy group introduction to cellulose at lower temperatures and in shorter time.SOLUTION: A production method of epoxidized cellulose includes a step of reacting epihalohydrin and cellulose in an aqueous solution of an onium compound to generate epoxidized cellulose in which a hydroxyl group of the cellulose is glycidyl etherized. The onium compound may be a quaternary phosphonium compound. Furthermore, the onium compound may be an onium hydroxide. As the onium compound, a tetrabutylphosphonium hydroxide is preferable. The epoxidized cellulose is an epoxidized cellulose obtained by glycidyl etherizing the hydroxyl group of the cellulose, and a degree of epoxy substitution is 0.5 to 3.0.SELECTED DRAWING: None
Inventors:
Takeshi Kakibe
Takuya Yamamoto
Takashin Obata
Hiroyo Suzuki
Takuya Yamamoto
Takashin Obata
Hiroyo Suzuki
Application Number:
JP2018104599A
Publication Date:
February 16, 2023
Filing Date:
May 31, 2018
Export Citation:
Assignee:
Hyogo Prefectural Public University Corporation
Daicel Corporation
Daicel Corporation
International Classes:
C08B11/04; C08G59/04
Domestic Patent References:
| JP2013256430A | ||||
| JP2008303319A | ||||
| JP2016150950A | ||||
| JP2016020500A | ||||
| JP2017052940A |
Foreign References:
| WO2009054373A1 |
Other References:
KAKIBE, T. et al.,Etherification of Cellulose in Binary Ionic Liquid as Solvent and Catalyst,The Chemical Society of Japan,2017年,Vol.46, No.5,pp.737-739
LIN, Mu-Shin and HUANG Chung-Song,Syntheses and characterizations of allyl cellulose and glycidyl cellulose,Journal of Polymer Science Part A: Polymer Chemistry,1992年,Vol.30, No.11,pp.2303-2312
LIN, Mu-Shin and HUANG Chung-Song,Syntheses and characterizations of allyl cellulose and glycidyl cellulose,Journal of Polymer Science Part A: Polymer Chemistry,1992年,Vol.30, No.11,pp.2303-2312
Attorney, Agent or Firm:
Patent Attorney Corporation G-chemical
Previous Patent: Improved automated food preparation equipment
Next Patent: THERMAL RECORDING MAGNETIC TICKET PAPER
Next Patent: THERMAL RECORDING MAGNETIC TICKET PAPER