Central Glass Company, Limited

Kei Matsunaga

Takeo Komata

Hideaki Imura

Masamune Okamoto

Satoru Okamoto

Satoru Miyazawa

Kohei Sumida

Yoshiki Hirotsu

Shota Kawano

Satoru Kobayashi

Hiroshi H Eguchi

Masatomi Kanai

Naoto Takada

Yoshio Nishiguchi

Shinya Akiba

Makoto Matsuura

Kenji Hosoi

Katsunori Kawamura

Kensuke Hirotaki

Masahiko Tani

Yukari Hara

Yosuke Murakami

Hiroto Hori

Ayumi Yamaguchi

A polyimide which is obtained by a reaction of an aromatic diamine having a 1,1,1-trifluoro-2,2-ethanediyl group (—C(CF)H—), as a linkage skeleton, with a tetracarboxylic dianhydride is easily dissolved in an organic solvent and exhibits excellent film forming properties. In addition, the thus-obtained polyimide can be used for an optical film and a display device.

Polyamide acid, polyimide, optical film, display device and production methods thereof

By fluorinating 1,2,3,3-tetrachloro-1-propene (1230xd) using hydrogen fluoride as a fluorinating agent, an efficient method for producing 1,2-dichloro-3,3-difluoro-1-propene (1232xd) is provided. Through this composition including 1232xd, there are also provided an environmentally friendly composition having excellent ability to dissolve various organic matters, a method for cleaning an article using the composition, a method for producing a lubricant solution using the composition, and a method for producing a component provided with a lubricant coating film.

Method for producing 1,2-dichloro-3,3-difluoro-1-propene and solvent composition

A manufacturing method of 1-chloro-3,3,3-trifluoropropene (1233zd) is provided. This manufacturing method includes a reaction in which a halogenated hydrocarbon compound having a carbon number of 3 and represented by a general formula (1) is heated:CFCl&#x2014;CH&#x2014;CHFCl&#x2003;&#x2003;(1) In the formula, a is an integer from 0 to 2, b is 1 or 2 when a=0, b is 0 or 1 when a=1, and b is 0 when a=2.

Method for producing 1,3-dichloro-3,3-difluoropropene

A method for producing 1,2-dichloro-3,3,3-trifluoropropene according to the present invention includes the step of reacting 1,1,2,3,3-pentachloropropene with a fluorinating agent where hydrogen fluoride is used as the fluorinating agent.

Method for producing 1,2-dichloro-3,3,3-Trifluoropropene

The present invention relates to a polymerizable acrylate compound represented by the general formula (1): (in the formula, Rrepresents a hydrogen atom, halogen atom, hydrocarbon group or fluorine-containing alkyl group, Rand Rmay be different or identical, and each of them independently is a hydrogen atom, fluorine atom, hydrocarbon group optionally branched, fluorine-containing alkyl group, aromatic group, or cyclic structure containing an aliphatic group and may contain oxygen or carbonyl bond) and a polymer compound obtained by using the same.

Polymerizable acrylate compound containing hexafluorocarbinol group and polymer made therefrom

A process for producing N-(bicyclo[2.2.1]hept-5-en-2-ylmethyl)-1,1,1-trifluoromethanesulfonamide represented by formula [3]. The process includes the step of reacting trifluoromethanesulfonic anhydride with 1-bicyclo[2.2.1]hept-5-en-2-ylmethanamine in the presence of water and in the presence of a base selected from the group consisting of alkali metal hydroxides, alkaline-earth metal hydroxides and basic salts containing an alkali metal or an alkaline-earth metal. 

Process for producing N-(bicyclo[2.2.1]hept-5-en-2-ylmethyl)-1,1,1-trifluoromethanesulfonamide

There is provided a process for producing a fluoroalkanesulfonamide derivative represented by the formula [3],R&#x2014;NH&#x2014;SO&#x2014;R&#x2014;R&#x2003;&#x2003;[3]including reacting a fluoroalkanesulfonic anhydride represented by the formula [1], with an organic primary amine represented by the formula [2], in the presence of water and in the presence of a base selected from the group consisting of (a) a hydroxide of an alkali metal or alkaline-earth metal or (b) a basic salt containing an alkali metal or alkaline-earth metal.

Process for producing fluoroalkanesulfonamide derivatives

A process for producing a fluorine-containing diol represented by the formula [2], includes reducing a hydroxy ketone represented by the formula [1], by hydrogen in the presence of a ruthenium catalyst. The ruthenium catalyst may be a solid-phase catalyst in which ruthenium is carried on an activated carbon, alumina or silica.

Process for producing fluorine-containing diol and its derivatives

A process for producing a fluorine-containing 2,4-diol represented by the formula [4], wherein Rrepresents a hydrogen atom or an acyclic or cyclic alkyl group having a carbon atom number of 1 to 7; Rrepresents an acyclic or cyclic alkyl group having a carbon atom number of 1 to 7; and Rand Rare optionally bonded to each other to form a ring, includes reducing a hydroxy ketone represented by the formula [3], wherein Rand Rare defined as above, by hydrogen in the presence of a ruthenium catalyst.

Processes for producing fluorine-containing 2,4-diols and their derivatives

A process for producing an &#x3b1;-substituted acrylic acid ester represented by the formula [1], wherein each of Rand Ris independently a hydrogen atom, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, fluoromethyl group, difluoromethyl group, trifluoromethyl group, or perfluoroethyl group, includes reacting an &#x3b1;-substituted acrylic acid anhydride represented by the formula [7], with 1,1-bis(trifluoromethyl)-1,3-diol represented by the formula [2].

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Saitama, Japan

Kei Matsunaga