Title:
化学修飾セルロース繊維およびその製造方法
Document Type and Number:
Japanese Patent JP6462051
Kind Code:
B2
Abstract:
A sulfated cellulose fiber having a cellulose I crystal structure is provided.A chemically modified cellulose fiber which has a cellulose I crystal and in which some hydroxyl groups of cellulose are substituted with a substituent represented by formula (1). An amount of the substituent introduced is 0.1 mmol to 3.0 mmol per 1 g of the chemically modified cellulose fiber, and an average degree of polymerization is 350 or more. (In formula (1), M represents a monovalent to trivalent cation.) In the production of the chemically modified cellulose fiber, a cellulose fiber is treated with sulfamic acid while maintaining a cellulose fiber shape to allow sulfamic acid and a cellulose fine fiber which is a constituent of the cellulose fiber to react with each other.
Inventors:
Kitano Yuka
Kayuki Hashimoto
Kayuki Hashimoto
Application Number:
JP2017127903A
Publication Date:
January 30, 2019
Filing Date:
June 29, 2017
Export Citation:
Assignee:
Daiichi Kogyo Pharmaceutical Co., Ltd.
International Classes:
C08B5/14; D01F2/28
Foreign References:
| US2511229 | ||||
| US6800754 | ||||
| US4377648 | ||||
| CN102863544A |
Other References:
Petropavlovskiy, G. A. et al.,Zh Prikl Khim,1985年,vol.58, no.2,p.421-423
Attorney, Agent or Firm:
Masato Tsuda
Tetsuji Nakamura
Katsuyuki Tomita
Ariyoshi Yasuomi
Ryu Maesawa
Mizutori Masahiro
Tamako Tsutada
Tetsuji Nakamura
Katsuyuki Tomita
Ariyoshi Yasuomi
Ryu Maesawa
Mizutori Masahiro
Tamako Tsutada