Patent ID: 11919974
Assignee: TOAGOSEI CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  D | IPC C

Claim 0:
1. An oxidized cellulose, a 13C solid-state NMR spectrum of the oxidized cellulose comprising a plurality of peaks in a range of from 165 ppm to 185 ppm, wherein a content of carboxyl groups in the oxidized cellulose is from 0.55 mmol/g to 3.0 mmol/g with respect to a dry mass of the oxidized cellulose, wherein the oxidized cellulose is not an oxidized regenerated cellulose; and
wherein the oxidized cellulose is produced by a process comprising:
oxidizing a cellulose raw material with a solution prepared from a hypochlorous acid or salt thereof having an available chlorine concentration of from 7% by mass to 14% by mass, while adjusting the pH in a range of from 5.0 to 14.0, wherein the cellulose raw material is not a regenerated cellulose.