Title:
セルロース微細繊維及びその製造方法
Document Type and Number:
Japanese Patent JP6404382
Kind Code:
B2
Abstract:
To provide a method for manufacturing cellulose microfibers in which a problem of yellowing of cellulose microfibers to be obtained was solved, and cellulose microfibers.As to a method for manufacturing cellulose microfibers, cellulose fibers are added with an additive (A) consisting of at least one of a phosphorous acid and a metal phosphite and an additive (B) consisting of at least one of urea and a urea derivative, heated and washed, then fibrillated. Also, as to cellulose microfibers, the fiber width is 1 to 1000 nm, and a part of hydroxy groups of cellulose fibers is substituted with a functional group represented by a predetermined structural formula to introduce an ester of phosphorous acid.
Inventors:
Matsusue Kazuhiro
Application Number:
JP2017035663A
Publication Date:
October 10, 2018
Filing Date:
February 28, 2017
Export Citation:
Assignee:
Daio Paper Co., Ltd.
International Classes:
D21H11/18; C08B5/00; C08B11/15; D21H13/06
Domestic Patent References:
| JP201731548A | ||||
| JP2013127141A | ||||
| JP4610551A | ||||
| JP20172231A |
Foreign References:
| WO2014185505A1 |
Attorney, Agent or Firm:
Nagai International Patent Office