Agc Inc.

Hidefumi Shiota

Shoji Furuta

Tomoaki Taniguchi

The object of the present invention is to provide a fluorinated ether composition with which a surface layer capable of imparting excellent water/oil repellency to the surface of a substrate and being excellent in abrasion resistance and weather resistance of the water/oil repellency, can be formed, and a coating liquid containing the fluorinated ether composition. The present invention further provides an article having a surface layer formed of the fluorinated ether composition, and a method for producing it. A fluorinated ether composition containing a specific fluorinated ether compound (1) having a poly(oxyfluoroalkylene) chain and having two silyl groups each having a hydrolyzable group bonded, at one terminal of the chain via an amide bond, and a specific fluorinated ether compound (2) having a poly(oxyfluoroalkylene) chain and having two silyl groups having a hydrolyzable group bonded, at both terminals of the chain via an amid bond.

Fluorine-containing ether composition, coating solution, and article and production method therefor

The method of purifying 1224yd (Z) includes: distilling a composition comprising 1224yd (Z) and 244bb in a presence of an extracting solvent comprising at least one compound selected from the group consisting of an alcohol, an ether, a nitrile, a ketone, a carbonate ester, an amide, an ester, a sulfoxide, a hydrocarbon, a chlorohydrocarbon, and a fluorohydrocarbon; and thereby, separating at least a part of 244bb from the composition.

Method of purifying (Z)-1-chloro-2,3,3,3-tetrafluoropropene

There is provided an economically advantageous manufacturing method capable of efficiently obtaining 1-chloro-2,3,3,3-tetrafluoropropene by using 1,2-dichloro-2,3,3,3-tetrafluoropropane as a raw material. A manufacturing method of 1-chloro-2,3,3,3-tetrafluoropropene is characterized in that it includes subjecting 1,2-dichloro-2,3,3,3-tetrafluoropropane to a dehydrochlorination reaction in a liquid phase in a presence of a base.

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Tokyo, Japan

Hidefumi Shiota