The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2023
Filed:
Feb. 06, 2019
Applicant:
Daicel Corporation, Osaka, JP;
Inventors:
Keiko Kobayashi, Tokyo, JP;
Masaya Omura, Tokyo, JP;
Assignee:
DAICEL CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 8/73 (2006.01); A61Q 1/10 (2006.01); A61Q 17/04 (2006.01); C08B 3/06 (2006.01); A61K 8/36 (2006.01); A61K 8/81 (2006.01); A61Q 1/12 (2006.01); A61Q 1/02 (2006.01); A61K 8/02 (2006.01); C08J 3/12 (2006.01);
U.S. Cl.
CPC ...
A61K 8/731 (2013.01); A61K 8/36 (2013.01); A61K 8/732 (2013.01); A61K 8/817 (2013.01); A61Q 1/10 (2013.01); A61Q 1/12 (2013.01); A61Q 17/04 (2013.01); A61K 8/0241 (2013.01); A61K 2800/412 (2013.01); A61Q 1/02 (2013.01); C08J 3/12 (2013.01);
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.