Nitto-denko Corporation

Toa Eiyo Ltd.

Jun Ishikura

Yu Tachikawa

Satoshi Ameyama

Tomonari Naito

Hirofumi Ebe

Tomoya Tanaka

Eiichi Imoto

Miki Funahashi

Tetsuya Nakamura

Hidetoshi Kuroda

Junichi Sekiya

Takashi Habu

Tsuyoshi Kasahara

Yoshio Funakoshi

Atsushi Hamada

Ryo Hashino

Kunihiro Minami

Kazuhiro Aoyagi

Naoko Urushihara

Akira Yokouchi

Namiko Murayama

Eriko Abe

Naohiro Nishida

Raito Funayama

Yoshitaka Inoue

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

A patch containing a support and an adhesive layer formed on at least one surface of the support, wherein the adhesive layer contains an elastomer obtained by crosslinking a polymer having a butadiene skeleton in the presence of organic peroxide, wherein the patch has good adhesion property and maintain this quality for a long time.

Patch and patch preparation

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

The present invention provides a medical adhesive and a medical adhesive tape or sheet superior in the fixing performance, particularly perspiration-resistant fixing, which shows low skin irritation and suitable adhesive strength. The present invention provides a medical adhesive containing a water-dispersed copolymer obtained by copolymerizing 100 parts by weight of a monomer mixture containing (meth)acrylic acid alkyl ester and 0.005-2 parts by weight of a silane monomer copolymerizable with the ester, and an organic liquid component compatible with the copolymer; a medical adhesive containing a water-dispersed copolymer obtained by copolymerizing a monomer mixture containing (meth)acrylic acid alkyl ester and a silane monomer copolymerizable with the ester, and an organic liquid component compatible with the copolymer, wherein the gel fraction after crosslinking of the copolymer is 40-80 wt %, and the weight average molecular weight of a sol component after crosslinking is not less than 300000; and a medical adhesive tape or sheet having the medical adhesive at least on one surface of a support.

Medical adhesive and medical adhesive tape or sheet

Growing community of inventors

Osaka, Japan

Jun Ishikura