Abstract: A perfluoro(poly)ether group-containing silane compound represented by formula (A1), (A2), (B1) or (B2), wherein the symbols are as defined in the description. Also disclosed is a surface-treating agent including the silane compound, a pellet including the surface-treating agent and an article including a base material and a layer formed from the silane compound or surface-treating agent.

Abstract: A fluoro(poly)ether group-containing silane compound represented by any of the formulae (A1), (A2), (B1), (B2), (C1), or (C2). In the formulae, PFPE is each independently at each occurrence a group represented by the formula: —(OC3F6)d—, wherein the repeating unit OC3F6 of the formula includes a branched structure, and d is an integer of 2 or more and 200 or less. The symbols are as defined in the description.

Abstract: A method for producing a fluoropolyether group-containing compound, which includesreacting a fluoropolyether group-containing compound (A) represented by the following formula: X11—(R11)n11—RF1—X12??(1) in the presence of a metal catalyst to form a fluoropolyether group-containing compound (B) containing two or more moieties derived from the fluoropolyether group-containing compound (A). Each of the above symbols is as defined in the description.

Abstract: A fluoropolyether group-containing compound of formula (1a) or formula (1b): wherein RF1, RF2, R1 and R2 are as defined herein.

Abstract: A surface-treating agent containing a fluorine-containing silane compound; and a metal compound, wherein a metal atom contained in the metal compound is one or more metal atoms selected from transition metal atoms of Groups 3 to 11 and typical metal atoms of Groups 12 to 15 of the periodic table.

Abstract: A fluoropolyether group-containing silane compound of the formula (1a) or the formula (1b), the symbols of which are as defined herein: RF1—XA—RSi ??(1a) RSi—XA—RF2—XA—RSi ??(1b)

Abstract: A method for producing an article including a substrate and a surface-treating layer formed from a surface-treating agent containing a fluorine-containing silane compound formed thereon, the method including: simultaneously depositing Si and another metal on the substrate to form an intermediate layer containing a composite oxide containing Si; and forming a surface-treating layer directly on the intermediate layer, wherein, the fluorine-containing silane compound is at least one fluoropolyether group-containing compound represented by the following formula (1) or (2): RF1?—XA—RSi???(1) RSi?—XA—RF2—XA—RSi???(2) where RF1, RF2, RSi, XA, ?, ? and ? are as defined herein.

Abstract: A method for chromatographically separating a mixture containing a perfluoro(poly)ether group-containing monoalcohol compound represented by the following formula (2) and a perfluoro(poly)ether group-containing dialcohol compound represented by the following formula (3): A-Pf-Z??(2) Z-Pf-Z??(3) wherein Pf represents a divalent perfluoropolyether group and A and Z are as defined herein, the method including: adsorbing the mixture onto a stationary phase, and eluting the perfluoro(poly)ether group-containing monoalcohol compound represented by formula (2) by one mobile phase selected from hydrofluorocarbons, hydrochlorofluorocarbons, hydrofluoroethers, fluorine-containing ester solvents, and fluorine-containing aromatic solvents to separate the perfluoro(poly)ether group-containing monoalcohol compound represented by formula (2) from the perfluoro(poly)ether group-containing dialcohol compound represented by formula (3).

Abstract: The present invention provides compound of formulae (A1), (A2), (B1), (B2), (C1) and (C2) which can form a layer having water-repellency, oil-repellency and antifouling property as well as high friction durability: wherein each symbols are as defined in the specification.

Abstract: An electronic device comprising a surface-treating layer formed on at least a part of a surface thereof, the surface-treating layer being formed of a (poly)ether group-containing silane compound represented by any of the formulae (A1), (A2), (B1), (B2), (C1), or (C2). The symbols are as defined in the description.

Abstract: A fluoro(poly)ether group-containing silane compound represented by any of the formulae (A1), (A2), (B1), (B2), (C1), or (C2). In the formulae, PFPE is each independently at each occurrence a group represented by the formula: —(OC3F6)d—, wherein the repeating unit OC3F6 of the formula includes a branched structure, and d is an integer of 2 or more and 200 or less. The symbols are as defined in the description.

Abstract: A perfluoro(poly)ether group-containing silane compound including a structure represented by -PFPE-X—SiRakRblRcm. In an exemplary embodiment, PFPE is a perfluoro(poly)ether group, X is a substituted or unsubstituted alkylene group having 2 to 20 carbon atoms, Ra is a functional group comprising a Si, Rc is a hydrogen atom or a lower alkyl group, k is an integer of 1 to 3, l and m are an integer of 0 to 2, respectively, and the sum of k, l and m in each —SiRakRblRcm is 3. Also disclosed is a surface-treating agent containing the silane compound, a pellet containing the surface-treating agent and an article including a base material and a layer formed from the silane compound or the surface-treating agent on a surface of the base material.

Abstract: A method for producing a fluoropolyoxyalkylene peroxide compound containing one or more —CF2OOCF2O— units, which includes treating a fluoropolyoxyalkylene compound containing two or more —CF2O— units in the presence of an oxygen source.

Abstract: A perfluoro(poly)ether group-containing silane compound represented by formula (1a) or formula (1b) (wherein the symbols are as defined in the description).

Abstract: A perfluoro(poly)ether group-containing silane compound represented by formula (A1), (A2), (B1) or (B2), wherein the symbols are as defined in the description. Also disclosed is a surface-treating agent including the silane compound, a pellet including the surface-treating agent and an article including a base material and a layer formed from the silane compound or surface-treating agent.

Abstract: A process for producing a perfluoropolyether acyl fluoride which includes reducing a peroxyperfluoropolyether by using a formyl group-containing compound in the presence of a transition metal catalyst.

Abstract: A method for producing a fluoropolyoxyalkylene peroxide compound containing one or more —CF2OOCF2O— units, which includes treating a fluoropolyoxyalkylene compound containing two or more —CF2O— units in the presence of an oxygen source.

Abstract: A method for chromatographically separating a mixture containing a perfluoro(poly)ether group-containing monoalcohol compound represented by the following formula (2) and a perfluoro(poly)ether group-containing dialcohol compound represented by the following formula (3): A-Pf-Z ??(2) Z-Pf-Z ??(3) wherein Pf represents a divalent perfluoropolyether group and A and Z are as defined herein, the method including: adsorbing the mixture onto a stationary phase, and eluting the perfluoro(poly)ether group-containing monoalcohol compound represented by formula (2) by one mobile phase selected from hydrofluorocarbons, hydrochlorofluorocarbons, hydrofluoroethers, fluorine-containing ester solvents, and fluorine-containing aromatic solvents to separate the perfluoro(poly)ether group-containing monoalcohol compound represented by formula (2) from the perfluoro(poly)ether group-containing monoalcohol compound represented by formula (3).

Abstract: Provided is a method for producing fluoromethane and 3,3,3-trifluoro-2-(trifluoromethyl)propanoyl fluoride ((CF3)2CHCOF), which are useful as dry etching gases etc., safely and inexpensively with high purity. According to the method in which 1,1,3,3,3-pentafluoro-2-trifluoromethylpropyl methyl ether is pyrolyzed in a gas phase in the presence of a catalyst, the desired fluoromethane and 3,3,3-trifluoro-2-(trifluoromethyl)propanoyl fluoride can be obtained with high selectivity and high conversion of the starting material by a simple process in which a pyrolysis reaction is performed in a gas phase using the inexpensive starting material.

Abstract: A process for producing a perfluoropolyether acyl fluoride which includes reducing a peroxyperfluoropolyether by using a formyl group-containing compound in the presence of a transition metal catalyst.