Nitto Electric Industrial Co., Ltd.

Kawa Co., Ltd.

Keiichi Ushiyama

Kenjiro Mori

Takashi Kawasaki

Yasuo Kihara

Yutaka Moroishi

Yasushi Wada

Hisashi Ichinose

Isao Mune

Toshiyuki Yamamoto

Hidetaka Nagai

Mitsuru Tamada

Ichiro Kobayashi

Tadaichi Nakao

Kenitiro Saito

An aqueous resin emulsion is disclosed. The emulsion is obtained by emulsion copolymerizing a monomer mixture comprising (a) an acrylic acid fluoroalkyl ester derivative, (b) an acrylic acid derivative, and (c) a polyfunctional monomer for internal cross-linking, in an aqueous medium. The emulsion shows excellent polymerization stability in emulsion copolymerization for the preparation thereof and excellent dispersion stability in an aqueous medium.

Aqueous resin emulsion

A drug administration material for continuously administering an active drug at a controlled rate through an integument or mucous membrane, which comprises a drug-retaining layer having provided on at least one side thereof a drug administration layer which continuously feeds an active drug to an integument or mucous membrane, said drug administration layer comprising a porous membrane containing in pores thereof a liquid having a limited solubility for the active drug.

Drug administration material

An antiphlogistic analgesic adhesive which comprises

Antiphlogistic analgesic adhesive

An antibacterial and antifungal material comprising a polymer containing carboxyl groups in an amount of at least about 0.008 milliequivalent per gram of the polymer and antibacterial and antifungal metallic ions ionically bonded to the carboxyl groups in an amount of at least about 0.0009 millimole per gram of the polymer.

Antibacterial and antifungal material

Growing community of inventors

Osaka, Japan

Keiichi Ushiyama