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:
Nov. 23, 2021
Filed:
Mar. 26, 2018
Applicant:
Nitto Denko Corporation, Ibaraki, JP;
Inventors:
Assignee:
Nitto Denko Corporation, Ibaraki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 47/32 (2006.01); A61K 9/70 (2006.01); A61K 31/135 (2006.01); A61K 31/137 (2006.01);
U.S. Cl.
CPC ...
A61K 47/32 (2013.01); A61K 9/703 (2013.01); A61K 9/7053 (2013.01); A61K 9/7061 (2013.01); A61K 9/7084 (2013.01); A61K 31/135 (2013.01); A61K 31/137 (2013.01);
Abstract
Provided is a transdermal absorption preparation that shows superior skin permeability of a drug and that does not easily cause cold flow. A transdermal absorption preparation having a drug-containing layer containing a drug and a polymer, wherein 50-100 wt % of the polymer in the drug-containing layer is a polymer having a glass transition temperature of 30° C.-200° C., and the drug in the drug-containing layer is in an amorphous state.