公开(公告)号：US20240132696A1

公开(公告)日：2024-04-25

申请号：US18277826

申请日：2022-02-15

Applicant: DAICEL CORPORATION

Inventor： Masaya OMURA ,  Keiko KOBAYASHI ,  Junko MAKINO

IPC: C08K3/22 ,  A61K8/19 ,  A61K8/73 ,  A61Q19/00 ,  C08K5/11

CPC classification number: C08K3/22 ,  A61K8/19 ,  A61K8/731 ,  A61Q19/00 ,  C08K5/11 ,  C08K2003/2206 ,  C08K2201/005

Abstract: Provided is a cellulose acylate composition containing cellulose acylate particles and metal compound-containing particles. The total degree of substitution of the cellulose acylate is from 0.7 to 2.9. The metal compound is one or more types of compounds selected from an alkali metal compound and an alkaline earth metal compound. The composition is produced by adding one or more types of metal compounds selected from an alkali metal compound and an alkaline earth metal compound during and/or after removing a water-soluble polymer from a dispersion containing, as a dispersoid, cellulose acylate impregnated with a plasticizer to form cellulose acylate particles.

公开(公告)号：US20230190592A1

公开(公告)日：2023-06-22

申请号：US17926426

申请日：2021-05-14

Applicant: DAICEL CORPORATION

Inventor： Yuta SAKAMOTO ,  Yuichi SAKANISHI ,  Keiko KOBAYASHI ,  Masaya OMURA

IPC: A61K8/06 ,  A61K8/73 ,  A23D7/005

CPC classification number: A61K8/062 ,  A61K8/731 ,  A23D7/0053 ,  A61K2800/412

Abstract: Provided are an emulsifiable preparation that has little influence on the environment or the human body, that is excellent in long-term storage stability, and that imparts a pleasant touch feeling to the skin, and an aqueous cosmetic that contains the emulsifiable preparation, a food or beverage that contains the emulsifiable preparation, and a pharmaceutical composition that contains the emulsifiable preparation. The emulsifiable preparation includes: one or more aqueous components selected from the group consisting of water and alcohol; an oily component; and microparticles of a polymer compound, in which the microparticles contain cellulose acetate as the polymer compound, and the microparticles has an average particle size of 2 to 10 μm. The aqueous cosmetic contains the emulsifiable preparation. The food or beverage contains the emulsifiable preparation. The pharmaceutical composition contains the emulsifiable preparation.

公开(公告)号：US20200179261A1

公开(公告)日：2020-06-11

申请号：US16616160

申请日：2019-02-06

Applicant: DAICEL CORPORATION

Inventor： Keiko KOBAYASHI ,  Masaya OMURA

IPC: A61K8/73 ,  A61K8/81 ,  A61K8/36 ,  A61Q1/12 ,  A61Q1/10 ,  A61Q17/04

Abstract: An object of the present invention is to provide fine particles excellent in biodegradability and touch feeling. Disclosed are cellulose acetate particles, the cellulose acetate particles have an average particle size of 80 nm or more and 100 μm or less, a sphericity of 0.7 or more and 1.0 or less, and a surface smoothness of 80% or more and 100% or less, and the cellulose acetate has a total degree of acetyl substitution of 0.7 or more and 2.9 or less.