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:
Jul. 09, 2024
Filed:
May. 28, 2020
Applicant:
Pola Chemical Industries, Inc., Shizuoka, JP;
Inventor:
Ryota Hayashi, Kanagawa, JP;
Assignee:
POLA CHEMICAL INDUSTRIES, INC., Shizuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 8/02 (2006.01); A61K 8/64 (2006.01); A61K 8/65 (2006.01); A61K 8/73 (2006.01); A61K 8/81 (2006.01); A61K 8/88 (2006.01); A61K 9/10 (2006.01); A61K 31/728 (2006.01); A61K 38/02 (2006.01); A61P 17/00 (2006.01); A61P 43/00 (2006.01); A61Q 19/00 (2006.01);
U.S. Cl.
CPC ...
A61K 8/0241 (2013.01); A61K 8/64 (2013.01); A61K 8/65 (2013.01); A61K 8/73 (2013.01); A61K 8/735 (2013.01); A61K 8/81 (2013.01); A61K 8/88 (2013.01); A61K 9/10 (2013.01); A61K 31/728 (2013.01); A61K 38/02 (2013.01); A61P 17/00 (2018.01); A61P 43/00 (2018.01); A61Q 19/00 (2013.01);
Abstract
A first problem is to provide a novel technique for forming hyaluronan into particles. Further, a second problem is to provide a novel technique suitable for production of a composite particle containing an anionic polymer and a peptide. Means for solving the first problem is a composite particle containing an anionic polymer, and a cationic polymer (except for chitosan) having a degree of cationization of 0.2 or more. Means for solving the second problem is to mix an anionic polymer and a peptide in an aqueous solvent having a pH of 5 or less.