Daikin Industries, Ltd.

Asahi Kasei Kabushiki Kaisha

Kazuhiro Ohtsuka

Masahiro Kondo

Tadashi Ino

Tetsuya Murakami

Takashi Yoshimura

Noriyuki Shinoki

Takahiro Tago

Masahiro Tomita

Masaharu Nakazawa

Yuki Yotsumoto

Fujimaru Tanaka

The disclosure aims to provide a composition that is able to provide a film having excellent abrasion resistance and excellent antifouling properties. The composition contains a perfluorocarbon sulfonic acid resin or sulfonic acid salt resin thereof, a tetraalkoxysilane, and a trialkoxysilane.

Composition and coating film

A liquid composition that can provide a film having excellent antifogging performance and weather resistance. The liquid composition contains nanocomposite particles. The nanocomposite particles contain metal particles and a perfluorocarbon sulfonic acid resin or a sulfonic acid salt resin thereof. The perfluorocarbon sulfonic acid resin has an equivalent weight of 550 to 800. The nanocomposite particles have an average particle size of 15 to 100 nm.

Liquid composition, coating film, and method for producing liquid composition

A method for producing an electrolyte solution including a supply step of continuously supplying an emulsion based a polymer electrolyte and a solvent into a dissolution facility, and a dissolution step of continuously dissolving the polymer electrolyte in the solvent by heating the interior of the dissolution facility to obtain the electrolyte solution.

Electrolyte solution and method for producing same, continuously dissolving facility, electrolyte membrane, electrode catalyst layer, membrane electrode assembly and fuel cell

The invention provides a powder that is easily redispersible in a liquid medium such as water. The powder contains a fluoropolymer. The fluoropolymer contains at least one group A selected from the group consisting of &#x2014;SOY, &#x2014;COOR, &#x2014;SOX, &#x2014;SONR, and &#x2014;COOX, wherein Y is a halogen atom; R is a C1-C4 alkyl group; X is Mor NR, where M is a hydrogen atom or an L-valent metal, the L-valent metal being a metal in group 1, group 2, group 4, group 8, group 11, group 12, or group 13 of the periodic table; and Rs are each individually a hydrogen atom or a C1-C4 alkyl group. The powder exhibits a dispersion of 50% or higher. The dispersion is calculated by filtering a composition obtainable by mixing the powder with water through a mesh having an opening of 20 &#x3bc;m.

Fluoropolymer powder and method for producing same

A method for preparing a fluoropolymer aqueous dispersion, including: step (A) of preparing a fluoropolymer aqueous dispersion comprising a fluoropolymer having at least one selected from the group consisting of &#x2014;SOY and &#x2014;COOR (wherein Y is a halogen, and R is a C1 to C4 alkyl) by emulsion polymerization; step (B) of heating the fluoropolymer aqueous dispersion to 50&#xb0; C. or higher; and step (C) of contacting the fluoropolymer aqueous dispersion with an ion exchange resin for cation exchange after step (B), thereby providing a purified fluoropolymer aqueous dispersion, the fluoropolymer aqueous dispersion being adjusted to pH 7 or lower from the end of the polymerization in step (A) to the end of step (C).

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Osaka, Japan

Kazuhiro Ohtsuka