Nitto-denko Corporation

Toa Eiyo Ltd.

Fujimoto Co., Ltd.

Satoshi Ameyama

Koji Nakamura

Mitsuhiko Hori

Keigo Inosaka

Jun Ishikura

Naoko Urushihara

Yu Tachikawa

Eri Nishiura

Tomoya Tanaka

Tetsuya Nakamura

Junichi Sekiya

Hidetoshi Kuroda

Tsuyoshi Kasahara

Kunihiro Minami

Ryo Hashino

Kazuhiro Aoyagi

Akira Yokouchi

Raito Funayama

Yoshitaka Inoue

Kouji Nakamura

Eriko Abe

Naohiro Nishida

Masashi Kamiyama

Hiroki Maruo

Kyoko Hosaka

An adhesive preparation containing bisoprolol includes a backing and a pressure-sensitive adhesive layer formed on one side of the backing. The pressure-sensitive adhesive layer contains a polymer prepared through copolymerization of monomer components including a hydroxyl group-containing monomer and an alkyl (meth)acrylate monomer (component (A)), a polymer prepared through copolymerization of monomer components including a methyl methacrylate monomer and a butyl methacrylate monomer (component (B)), and bisoprolol (component (C)).

Adhesive preparation containing bisoprolol

The present invention provides a patch or patch preparation in which the anchoring property of a pressure-sensitive adhesive layer to a support is improved with no adverse effects on its pressure-sensitive adhesive properties such as adhesion, pressure-sensitive adhesiveness, and a cohesive strength. A support of the present invention is for a patch or patches preparation, and comprises a base material containing a plastic film and an undercoat agent layer laminated on the base material. The undercoat layer contains porous inorganic particles having an average particle diameter of from 1 &#x3bc;m to 15 &#x3bc;m. A patch and patch preparation of the present invention comprises the support and a pressure-sensitive adhesive layer placed on one surface of the support to be adjacent to the undercoat agent layer.

Support body for transdermal patch or transdermal preparation, and transdermal patch and transdermal preparation using same

The patch according to an embodiment of the present invention includes: a support; and a pressure-sensitive adhesive layer on at least one surface of the support, wherein: the pressure-sensitive adhesive layer contains an acrylic copolymer obtained by copolymerizing monomer components containing (a) at least one kind of a monomer of a (meth)acrylic acid alkyl ester and (b) at least one kind of a monomer of an N-hydroxyalkyl(meth)acrylamide; a content of the (meth)acrylic acid alkyl ester monomer (a) with respect to a total amount of the monomer components is 50 wt % to 90 wt % and a content of the N-hydroxyalkyl(meth)acrylamide monomer (b) with respect to the total amount is 1 wt % to 20 wt %; and the monomer components are substantially free of a monomer having a carboxyl group.

Transdermal patch having a pressure-sensitive adhesive comprising (meth)acrylic acid alkyl ester, N-hydroxyalkyl(meth)acrylamide, and vinyl monomers

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Ibaraki, Japan

Satoshi Ameyama