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. 20, 1990
Filed:
Mar. 31, 1988
Takashi Nakagawa, Otsu, JP;
Masayasu Kurono, Mie, JP;
Makoto Sato, Aichi, JP;
Tsutomu Ishida, Iwakura, JP;
Kazushi Tokita, Aichi, JP;
Katsuhiko Takahashi, Aichi, JP;
Masato Azuma, both Osaka, JP;
Satoshi Uenoyama, both Osaka, JP;
Sekisui Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Sanwa Kagaku Kenkyusho Co., Ltd., Nagoya, JP;
Nippon Oil & Fats Co., Ltd., Tokyo, JP;
Abstract
A percutaneous-administration-type pharmaceutical preparation of nitroglycerin comprising a backing that is impervious to medicines, and a pressure-sensitive adhesive layer that is disposed on one surface of the backing, wherein the pressure-sensitive adhesive layer contains alkyl (meth)acrylate copolymer in the concentration of 80-95% by weight and the nitroglycerin in the concentration of 5-20% by weight, said copolymer contains as major copolymer components alkyl (meth)acrylate with alkyl groups having 6 or more carbon atoms, which alkyl (meth)acrylates include 2-ethylhexylmethacrylate in the concentration of 40-90% by weight based on the total weight of said alkyl (meth)acrylates, and the copolymer has a rolling ball tack value of 2 or less. The preparation obtained makes it possible for nitroglycerin to be absorbed percutaneously at a controlled rate for long periods of time.