Title:
MANUFACTURING METHOD OF CELLULOSE RESIN
Document Type and Number:
Japanese Patent JP2020084140
Kind Code:
A
Abstract:
To provide a manufacturing method of a cellulose resin excellent in mechanical property and thermoplasticity, and less in debris.SOLUTION: There is provided a manufacturing method of a cellulose resin in which a hydrogen atom of a hydroxy group of cellulose is substituted by a long chain component which is a linear saturated aliphatic acyl group having 14 or more carbon atom, and a short chain component which is an acyl group having 3 carbon atoms (propionyl group), including a process for reacting pulp having polymerization degree of 300 to 700 and dispersed in an organic solvent, propionyl chloride, and a long chain reaction agent which is acid chloride of long chain aliphatic acid having the long chain component in presence of an acid capture component under heating to acylate the hydroxyl group of the cellulose constituting the pulp, a process for filtering a reaction liquid obtained in the acylation process, and a process for separating acylated cellulose from the organic solvent and obtaining the same from the reaction liquid through the filtration process.SELECTED DRAWING: None
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Inventors:
TANAKA SHUKICHI
IWATA TADAHISA
IWATA TADAHISA
Application Number:
JP2018225196A
Publication Date:
June 04, 2020
Filing Date:
November 30, 2018
Export Citation:
Assignee:
NEC CORP
UNIV TOKYO
UNIV TOKYO
International Classes:
C08B3/16; C08B3/20
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata