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:
Oct. 13, 1992
Filed:
Aug. 02, 1991
Applicant:
Inventors:
Keisuke Shibata, Osaka, JP;
Yuusuke Ito, Osaka, JP;
Saburo Otsuka, Osaka, JP;
Shoichi Tokuda, Osaka, JP;
Takashi Kinoshita, Osaka, JP;
Assignee:
Nitto Denko Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ; A61F / ; A61L / ;
U.S. Cl.
CPC ...
424448 ; 424447 ; 424449 ;
Abstract
A percutaneous absorption type preparation and a process for preparing the same are disclosed. The preparation comprises a substantially drug-impermeable backing having provided thereon an adhesive layer comprising a pressure-sensitive adhesive containing therein a percutaneous absorption type drug (solid at room temperature) in an amount greater than the saturated solubility in the adhesive, wherein the excess amount of the drug greater than the saturated solubility is present in the adhesive in a continuous recrystallized state and a substantially network state.