Invention Grant
- Patent Title: Cellulose fibers, cellulose fiber-containing composition, cellulose fiber dispersion, and method for producing cellulose fibers
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Application No.: US16489917Application Date: 2018-03-01
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Publication No.: US11578456B2Publication Date: 2023-02-14
- Inventor: Mengchen Zhao , Yusuke Todoroki , Yuichi Noguchi , Ikue Sugiyama
- Applicant: OJI HOLDINGS CORPORATION
- Applicant Address: JP Tokyo
- Assignee: OJI HOLDINGS CORPORATION
- Current Assignee: OJI HOLDINGS CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JPJP2017-038708 20170301,JPJP2017-244757 20171221
- International Application: PCT/JP2018/007711 WO 20180301
- International Announcement: WO2018/159743 WO 20180907
- Main IPC: D06M11/71
- IPC: D06M11/71 ; C08L1/08 ; D21H11/20 ; D06M101/06
Abstract:
It is an object of the present invention to provide ultrafine cellulose fibers capable of exhibiting favorable dispersibility even in an organic solvent. The present invention relates to cellulose fibers having a fiber width of 1000 nm or less and having phosphoric acid groups or phosphoric acid group-derived substituents, wherein the content of the phosphoric acid groups or phosphoric acid group-derived substituents is 0.5 mmol/g or more, and the supernatant yield measured by an measurement method (a) is 70% or less.
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