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. 13, 2010
Filed:
Jun. 06, 2003
Tatsuaki Suzuki, Tsukuba, JP;
Tetsuro Tateishi, Tsukuba, JP;
Naruhito Higo, Tsukuba, JP;
Hisamitsu Pharmaceutical Co., Inc., Tosu-Shi, Saga, JP;
Abstract
The present invention relates to a patch which is free from any migration of a drug into a substrate and has favorable anchoring properties between the substrate and adhesive layer, in which the drug containing adhesive layer firmly adheres onto the substrate and which gives no adhesion residue when applied to the skin and then peeled off. Namely, a patch comprising a substrate made of a polyester-based film and a drug-containing adhesive layer laminated thereon wherein the surface roughness (also known as 'the central line mean roughness' or 'Ra') of the polyester-based film surface in the side in contact with the adhesive layer is from 0.05 to 0.8 μm is provided.