Asahi Glass Company, Limited

Osaka Gas Company Limited

Masashi Matsuo

Masaru Nakamura

Takashige Maekawa

Kazuya Oharu

Isamu Kaneko

Shunichi Samejima

Gen Kojima

Masayuki Tamura

Motoi Kamba

Nobuyuki Yamagishi

Takao Hayashi

Katsuji Ito

Yoshio Oda

Yutaka Furukawa

Keiichi Ohnishi

Nobuyuki Miyazaki

Masao Unoki

Masaru Yamauchi

Shunsuke Yokotsuka

Takashi Takayanagi

Hiroyuki Fujimoto

Yukio Jitsugiri

Makoto Noshiro

Shoichi Kawakami

Mikio Sasabe

Katsuji Itoh

Toshio Iwamoto

Nobuko Matsunaga

An electric double layer capacitor of an electrode containing a carbon material as the main component, and an electrolyte to form an electric double layer at the interface with the electrode, wherein the electrolyte is one having a salt of a quaternary onium containing a polyfluoroalkyl group dissolved in an organic solvent.

Electric double layer capacitor and electrolyte therefor

A fluoropolymer composition for coating, which comprises a polymer having a fluorine-containing cycloaliphatic structure and at least one coupling group in its molecule and a solvent for dissolving said polymer.

Fluoropolymer composition for coating and article coated with the same

A water and oil repellent composition containing, as an essential component, non-film-forming fine solid particles having a low surface tension and having a fluorine content of at least 30% by weight.

Water and oil repellent composition

A water and oil repellant comprising, as effective component, polymer particles each containing at least two polymers, wherein at least one of said at least two polymers is a polymer containing a polyfluoroalkyl group.

Water and oil repellant

A curable resin composition comprising a fluoroolefin polymer containing at least 10% by weight of fluorine based on the fluoroolefin unit, being soluble in a solvent and having curable reactive sites, and a curing agent, wherein a polyfluorocarbon chain-containing compound having a functional group reactive with the fluoroolefin polymer and/or the curing agent, is incorporated said composition being useful for the formation of a coating film of excellent water and oil repellency, and stain-proof properties.

Curable resin composition

A method for cyclic polymerization, wherein a fluorine-containing monomer is subjected to cyclic polymerization, the fluorine-containing monomer having two carbon-carbon multiple bonds, each having different polymerizability, as linked by a linking chain having a straight chain portion to from 2 to 7 atoms, and having a fluorine content of at least 10% by weight.

Cyclic polymerization

A fluorine-containing thermoplastic resinous polymer which consist essentially of a group (a) of repeating units of a cyclic structure to be represented by the following general formula: ##STR1## (where: n is an integer of 1 to 2); the polymer having a molecular weight such that the intrinsic viscosity thereof may become at least 0.1. A fluorine-containing thermoplastic resinous polymer which consists essentially of:

Novel fluorine-containing cyclic polymer

A water and oil repellent having excellent desoiling properties composed of a compound comprising at least two terminal segments and an intermediate segment connecting the terminal segments and having a molecular weight of from 800 to 20,000, each terminal segment containing at least one polyfluoroalkyl group connected by a --CONH-- linking group, said intermediate segment being a urethane oligomer containing at least two --CONH-- linking groups and a hydrophilic molecular chain, and said terminal segments and intermediate segment being connected by a --CONH-- linking group.

Water and oil repellent having excellent desoiling properties

A high performance water and oil repellant composed of a compound comprising at least two terminal segments and an intermediate segment connecting the terminal segments and having a molecular weight of from 800 to 20,000, each terminal segment containing at least one polyfluoroalkyl group connected by a --CONH-- linking group, said intermediate segment being a urethane oligomer containing at least two --CONH-- linking groups in one molecule, and said terminal segments and intermediate segment being connected by a --CONH-- linking group.

High performance water and oil repellant

A plastic-clad light-transmitting fiber having a high NA (numerical aperture) and low transmission loss, which consists essentially of a core of quartz glass or optical glass and a clad of organopolysiloxane, wherein the clad of organopolysiloxane is a cured body having 30% by weight or more of fluorine content, which is obtained by the curing reaction of a vinyl group-containing organofluoropolysiloxane and a hydrogen-containing fluorosilicone compound, and wherein the vinyl group-containing organofluorosiloxane is a copolymerized polysiloxane obtained from a hydrocarbon siloxane unit and a polyfluoroalkyl group-containing siloxane unit, with a ratio of copolymerization of hydrocarbon siloxane unit ranging from 20 to 75 mol %.

Plastic-clad light-transmitting fiber

A surface modifier comprising a block copolymer obtained by polymerizing a polyfluoroalkyl group-containing compound in the presence of a chain transfer agent composed of a polysiloxane having a mercapto group at its terminal, said block copolymer containing polymer segments of said polysiloxane and polymer segments of said compound, as essential components.

Surface modifier

A low reflectance transparent material having antisoiling properties, which comprises a transparent substrate and a multi-layer coating formed on the substrate, said coating comprising at least one thin layer of a condensation product containing a metal oxide, and a thin layer of a condensation product of a fluorine-containing silicon compound having a polyfluorinated carbon chain or a perfluorocarbon chain, formed thereon.

Low reflectance transparent material having antisoiling properties

A stainproofing agent containing as an active ingredient a polyfluoroalkyl group-containing compound represented by the following general formula and having a molecular weight of from 800 to 3000:

Stainproofing agent and process for its preparation

Polyfluoroalkyl group-containing compounds are prepared according to the following reaction: ##EQU1## wherein R.sub.f represents perfluoroalkyl groups containing C.sub.1.sub.-23 carbon atoms, R, R' and R' represent hydrogen atoms or lower alkyl groups, and X represents bromine atoms or iodine atoms. The polyfluoroalkyl group-containing esters having the formula R.sub.f CH.sub.2 CH.sub.2 OCOR, are converted by hydrolysis to polyfluoroalkyl group-containing alcohols having the formula R.sub.f CH.sub.2 CH.sub.2 OH wherein R.sub.f is defined as above.

Growing community of inventors

Yokohama, Japan

Masashi Matsuo