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:
May. 18, 2010
Filed:
Oct. 17, 2003
Takeshi Ito, Tsukuba, JP;
Tetsuro Tateishi, Tsukuba, JP;
Naruhito Higo, Tsukuba, JP;
Hisamitsu Pharmaceutical Co., Inc., Saga, JP;
Abstract
A transdermal patch for external use having a backing layer and a pressure-sensitive adhesive layer formed on one surface of the backing layer, which contains polyisobutylene, a mineral oil and fentanyl employed as the active ingredient in the pressure-sensitive adhesive layer and in which the contents of polyisobutylene and fentanyl in the pressure-sensitive adhesive layer respectively range from 75.2 to 94.2% by mass and 1 to 6% by mass while the content of the mineral oil is from 0.25 to 0.05 parts by mass based on polyisobutylene. This patch can be easily produced, has a long-lasting effect and is excellent in adhesion to the skin and tolerability against movement to the body parts.