Showa Denko K.k.

National Institute of Advanced Industrial Science and Technology

Nobutoshi Sasaki

Hiroshi Uchida

Toshio Fujita

Ryuji Monden

Yuji Kobayashi

Kazuhiko Sato

Hiromoto Ohno

Toshio Ohi

Hideo Miyata

Kohei Morikawa

Masayuki Noguchi

Masao Shimizu

Isamu Taguchi

Kentaro Seki

Masanori Ookoshi

Kiyoshi Nomura

There is provided a curable composition which can give a cured product having excellent physical properties and is particularly useful as a material for the separator of a fuel cell such as polymer electrolyte fuel cell. The electrically conducting curable resin composition of the present invention comprises (A) a hydrocarbon compound having a plurality of carbon-carbon double bonds, (B) an elastomer excluding the component (A), and (C) a carbonaceous material.

Electrically conducting curable resin composition, cured product thereof and method for producing the same

The production process for 1,2,3,4-tetrachlorohexafluorobutane of the present invention is characterized in that 1,2,3,4-tetrachlorobutane is reacted with fluorine in the presence of a solvent containing hydrogen fluoride. The 1,2,3,4-tetrachlorobutane may be obtained by chlorination of 3,4-dichlorobutene-1. Further, the present invention provides as well a process of refining 1,2,3,4-tetrachlorohexafluorobutane obtained in the manner described above. According to the present invention, 1,2,3,4-tetrachlorohexafluorobutane which is useful, for example, as a synthetic raw material for hexafluoro-1,3-butadiene used as an etching gas for semiconductors can industrially efficiently be produced by using 1,2,3,4-tetrachlorobutane which is a by-product of chloroprene and which has so far been disposed.

Production process for 1,2,3,4-tetrachlorohexafluorobutane and refining process

Novel epoxy compounds represented by the general formula: (wherein Rand Reach represent hydrogen, a C1-6 alkyl group or a C1-4 trialkylsilyl group, each Rmay be the same or different and each independently represents hydrogen, alkyl, aryl, aralkyl, alkenyl or fluoroalkyl, and n is 0 or a positive integer), and the general formula: (wherein Rrepresents the same groups specified above, Rrepresents hydrogen, a C1-6 alkyl group or a C1-4 trialkylsilyl group, and n is 0 or a positive integer), and a process for their production.

Epoxy compounds and process for their production

A novel epoxy compound represented by the following general formula (I), and a production process thereof, is provided:Y&#x2014;(CH)&#x2014;Si(OR)R&#x2003;&#x2003;(I)(wherein, Y is represented by any of the following formulas: wherein, Rand Rrepresent alkyl groups having 1 to 5 carbon atoms, n represents an integer of 1 to 3, Rand Rrepresent hydrogen atoms, alkyl groups having 1 to 6 carbon atoms or trialkylsilyl groups having 1 to 4 carbon atoms, Rrepresents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or a trialkylsilyl group having 1 to 4 carbon atoms, Rto Rrepresent hydrogen atoms, alkyl groups having 1 to 6 carbon atoms or trialkylsilyl groups having 1 to 4 carbon atoms, and Rrepresents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a trialkylsilyl group having 1 to 4 carbon atoms or an aryl group).

Epoxy compound and production process of same

Novel epoxy compounds having imide structures represented by general formula (I) or general formula (II) below, and having an allyl group in the same molecule, as well as a process for their production (wherein Rand Reach represent hydrogen, a C1-6 alkyl group, or a C1-4 trialkylsilyl group) (wherein Rrepresents hydrogen, a C1-6 alkyl group, or a C1-4 trialkylsilyl group).

Epoxy compounds and method for production of the same

An object of the present invention is to provide a fluorinated polymer of adequate molecular weight with excellent transparency in a wavelength range from visible to near infrared, and to also provide a method of producing such a polymer. The present invention provides a fluorinated polymer comprising a structure represented by a formula (1) as a structural unit, as well as a method of producing this polymer using a corresponding tetrafluoroxylylenediamine or a tetrafluoroxylylene glycol as a raw material.

Fluorinated polymer

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Kawasaki, Japan

Nobutoshi Sasaki