公开(公告)号：US20250075060A1

公开(公告)日：2025-03-06

申请号：US18293229

申请日：2022-06-22

Applicant: Daio Paper Corporation

Inventor： Takaaki Imai ,  Ikko Matsusue ,  Naoto Umeguchi

IPC: C08L1/02 ,  C08J3/20 ,  C08J3/205 ,  C08K7/02 ,  C08L23/12 ,  D21C9/00

Abstract: A microfiber cellulose solid body of which productivity in kneading treatment has been improved, as well as a method for preparing the microfiber cellulose solid body is provided. The microfiber cellulose solid body is formed by compressing a mixture containing resin powder and microfiber cellulose having an average fiber width of 0.1 to 19 μm, wherein the microfiber cellulose solid body has a volume of 6 to 4000 mm3 and a bulk density of 0.3 to 1.0 g/cm3.

公开(公告)号：US20240376663A1

公开(公告)日：2024-11-14

申请号：US18293231

申请日：2022-08-04

Applicant: Daio Paper Corporation

Inventor： Ryunosuke Aoki ,  Ikko Matsusue ,  Naoto Umeguchi

IPC: D06M13/432

Abstract: A method for preparing carbamated cellulose fibers applicable to mass production is provided. The method for preparing carbamated cellulose fibers in which hydroxyl groups of cellulose fibers have partially or fully been modified with carbamate groups, includes heating a pulp sheet which has been formed into a strip shape by subjecting a raw material pulp to papermaking and contains urea or a derivative thereof, between a pair of rolls while passing therebetween, to cause the modification.