Nitto-denko Corporation

Chiaki Harada

Hiroshi Yamamoto

Takeshi Matsumura

Masayuki Yamamoto

Koichi Hashimoto

Yasuhiro Uda

Kazuki Tsuchimoto

Seiichi Kusumoto

Takayuki Yamamoto

Tatsumi Amano

Takahisa Konishi

Masao Nakamura

Kazuhiko Shibata

Yuuji Saiki

Koichi Nakamura

Hitoshi Ishizaka

Yasuo Kihara

Kouji Maruyama

Naoki Kurata

Yuji Okawa

Masayuki Kaneto

Yasuo Fujimura

Shinya Nishiyama

Gosei Uemura

Tokio Fujita

Toshihiko Tomita

Tatsuya Kubozono

Toshio Nakajima

Toshiaki Iwamoto

Yuuji Yamashiro

Tadanori Michimoto

Mamoru Hondo

Tatsuya Sekido

Taizo Sasaki

It is an object of the present invention to provide a composite semipermeable membrane having an excellent resistance property to contamination, particularly an excellent resistance property to microbial contamination, and a water treatment method using the composite semipermeable membrane. The present invention relates to a composite semipermeable membrane comprising a skin layer formed on the surface of a porous support and containing a polyamide-based resin obtained by reacting a polyfunctional amine component with a polyfunctional acid halide component, wherein an antibacterial layer containing a silver-based antibacterial agent and a polymer component is formed on the skin layer directly or with other layer interposed therebetween, and the weight ratio between the silver-based antibacterial agent and the polymer component in the antibacterial layer is 55:45 to 95:5 (silver-based antibacterial agent:polymer component).

Composite semipermeable membrane

A transparent protective film for polarizing plate being provided via an adhesive layer on at least one surface of a polarizer, wherein a ratio of constituent elements (oxygen ratio/carbon ratio) on the polarizer-adhering surface of the transparent protective film for polarizing plate, which is determined by X-ray photoelectron spectrometry, is larger than 0.75 has facilitate adhesion surface and no deformation without problems attributable to saponification.

Transparent protective film for polarizing plate, process for producing the same, polarizing plate, and optical film and liquid crystal display using polarizing plate

A pressure-sensitive adhesive material comprises a pressure-sensitive adhesive layer comprising 100 parts by weight of natural rubber and 10 to 120 parts by weight of styrene-isoprene-styrene block copolymer (SIS) having a radiate configuration with a styrene content of 10 to 45% by weight. Preferably, the pressure-sensitive adhesive layer is free of metals or metal compounds. The pressure-sensitive adhesive layer may contain 5 to 150 parts by weight of a tackifier having an acid value of 1.5 or more. The pressure-sensitive adhesive material includes (A) a backing-less tape having a release liner having on one surface thereof the pressure-sensitive adhesive layer and (B) a double-coated tape having a backing having respective pressure-sensitive adhesive layers on surfaces thereof, at least one of which is constituted by the pressure-sensitive adhesive layer of the above-described type.

Pressure-sensitive adhesive material

Method for resist removal, and adhesive or adhesive sheet for use in the

Composite tubular article and process for producing the same

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Osaka, Japan

Chiaki Harada