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:
Sep. 06, 2022
Filed:
Mar. 13, 2020
Applicant:
Daicel Corporation, Osaka, JP;
Inventors:
Keiko Kobayashi, Tokyo, JP;
Masaya Omura, Tokyo, JP;
Assignee:
DAICEL CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 1/02 (2006.01); A61K 8/73 (2006.01); C08B 1/00 (2006.01); C08J 3/16 (2006.01); C08K 5/00 (2006.01);
U.S. Cl.
CPC ...
C08L 1/02 (2013.01); A61K 8/731 (2013.01); C08B 1/003 (2013.01); C08J 3/16 (2013.01); C08K 5/0016 (2013.01);
Abstract
Cellulose derivative particles including an alkoxy group having 2 or more carbons or an acyl group having 3 or more carbons, wherein the cellulose derivative particles have an average particle size of 80 nm or greater and 100 μm or less, a sphericity of 70% or greater and 100% or less, and a surface smoothness of 80% or greater and 100% or less; and a total substitution degree of the cellulose derivative is 0.7 or greater and 3 or less.