Method of producing hydrofluoroolefin

    公开(公告)号:US10399916B2

    公开(公告)日:2019-09-03

    申请号:US16007051

    申请日:2018-06-13

    Applicant: AGC Inc.

    Abstract: There is provided a method of producing HFO with which diluent gas is easily separated even at a low boiling point and which has excellent productivity. A method of producing HFO includes: converting HFC of the formula (1) into the HFO of the formula (2) to obtain a first gas composition containing the HFO and the fluorine-containing solvent, CR1R2X1CR3R4X2 (1), CR1R2═CR3R4 (2), where in the formulae, R1 to R3 are H or F, R4 is H, F, CH3, CH2F, CHF2 or CF3, the total number of fluorine atoms of R1 to R4 is one or more, and the total number of hydrogen atoms of R1 to R4 is one or more. One of X1 and X2 is H, and the other of X1 and X2 is F; and separating the fluorine-containing solvent from the first gas composition to obtain a second gas composition containing the HFO.

    Manufacturing method of hydrofluoroolefin

    公开(公告)号:US10384992B2

    公开(公告)日:2019-08-20

    申请号:US15725886

    申请日:2017-10-05

    Applicant: AGC Inc.

    Abstract: A method for manufacturing hydrofluoroolefin, includes: converting hydrofluorocarbon represented by a formula (1) into hydrofluoroolefin (HFO) represented by formula (2) in the presence of carbon dioxide to obtain a first gas composition containing hydrofluoroolefin and carbon dioxide; and separating carbon dioxide contained in the first gas composition to obtain a second gas composition containing HFO, CR1R2X1CR3R4X2 . . . (1), CR1R2═CR3R4 . . . (2), wherein R1 to R3 are each independently hydrogen atom or fluorine atom, R4 is hydrogen atom, fluorine atom, CH3, CH2F, CHF2 or CF3, the total number of fluorine atoms of R1 to R4 is one or more, and the total number of hydrogen atoms of R1 to R4 is one or more, X1 and X2 are each hydrogen atom or fluorine atom where X2 is the fluorine atom when X1 is the hydrogen atom, and X2 is the hydrogen atom when X1 is the fluorine atom.

    Article with water and oil repellent layer

    公开(公告)号:US12240993B2

    公开(公告)日:2025-03-04

    申请号:US17655671

    申请日:2022-03-21

    Applicant: AGC Inc.

    Abstract: To provide an article with a water and oil repellent layer, which is excellent in friction resistance.
    The article with a water and oil repellent layer of the present invention comprises a substrate, a water and oil repellent layer consisting of a hydrolyzed condensation product of a compound represented by the formula [A-(OX)m-]jY1[—Si(R)nL3-n]g, and a silicon oxide layer containing alkali metal atoms that exists between the substrate and the water and oil repellent layer, wherein the average value of the concentration of alkali metal atoms in a predetermined area in the silicon oxide layer is at least a predetermined value. In the formula, X is a fluoroalkylene group, m is at least 2, j, g, and k are at least 1, and Y1 and Y2 are linking groups, R is a monovalent hydrocarbon group, L is a hydrolyzable group or hydroxy group, n is 0 to 2, A is a perfluoroalkyl group or —Y2[—Si(R)nL3-n]n. When A is —Y2[—Si(R)nL3-n]k, j is 1, and when A is a perfluoroalkyl group and j is 1, g is at least 2.

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