Patent ID: 11959194
Assignee: KAO CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D  B  C | IPC B  D

Claim 20:
21. A method for producing shortened anionically modified cellulose fibers having an average fiber length of 1 μm or more and 500 μm or less, the method comprising cleaving sugar chains of anionically modified cellulose fibers by thermal decomposition under temperature conditions of 50° C. or higher and 230° C. or lower, wherein the average fiber length of the anionically modified cellulose fibers is 700 μm or more and 10000 μm or less,
wherein the sugar chain cleaving step is carried out under conditions that do not contain an acid, an alkali, or an enzyme;
wherein the time in the sugar chain cleaving step is 4 hours or more.