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    COMPOSITION CONTAINING REFRIGERANT, USE OF SAID COMPOSITION, REFRIGERATOR HAVING SAID COMPOSITION, AND METHOD FOR OPERATING SAID REFRIGERATOR
    73.
    发明申请
    COMPOSITION CONTAINING REFRIGERANT, USE OF SAID COMPOSITION, REFRIGERATOR HAVING SAID COMPOSITION, AND METHOD FOR OPERATING SAID REFRIGERATOR 有权

    公开(公告)号：US20230002659A1

    公开(公告)日：2023-01-05

    申请号：US17887125

    申请日：2022-08-12

    Applicant: DAIKIN INDUSTRIES, LTD.

    Inventor： Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI

    IPC: C09K5/04

    Abstract: An object is to provide a mixed refrigerant having three types of performance, i.e., a refrigerating capacity that is equivalent to that of R410A, a sufficiently low GWP, and a lower flammability (Class 2L) according to the ASHRAE standard. Provided is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), difluoromethane (R32), and 2,3,3,3-tetrafluoro-1-propene (R1234yf), wherein when the mass % of HFO-1132(E), R32, and R1234yf based on their sum in the refrigerant is respectively represented by x, y, and z, coordinates (x,y,z) in a ternary composition diagram in which the sum of HFO-1132(E), R32, and R1234yf is 100 mass % are within the range of a figure surrounded by line segments AC, CF, FD, and DA that connect the following 4 points: point A (71.1, 0.0, 28.9), point C (36.5, 18.2, 45.3), point F (47.6, 18.3, 34.1), and point D (72.0, 0.0, 28.0), or on these line segments; the line segment AC is represented by coordinates (0.0181y2−2.2288y+71.096, y, −0.0181y2+1.2288y+28.904); the line segment FD is represented by coordinates (0.02y2−1.7y+72, y, −0.02y2+0.7y+28); and the line segments CF and DA are straight lines.

    COMPOSITION CONTAINING CIS-1,2-DIFLUOROETHYLENE
    75.
    发明申请
    COMPOSITION CONTAINING CIS-1,2-DIFLUOROETHYLENE 有权

    公开(公告)号：US20220089924A1

    公开(公告)日：2022-03-24

    申请号：US17419502

    申请日：2020-01-10

    Applicant: DAIKIN INDUSTRIES, LTD.

    Inventor： Kazuhiro TAKAHASHI

    IPC: C09K5/04 ,  C09K3/30 ,  C08J9/14 ,  F28F23/00

    Abstract: The invention provides a novel composition comprising cis-1,2-difluoroethylene. The invention provides the following: a composition comprising cis-1,2-difluoroethylene (HFO-1132(Z)) and at least one additional compound; the composition that is an azeotropic or azeotrope-like composition; and use of the composition as a heat transfer medium, a foaming agent, or a propellant.

    AZEOTROPE-LIKE COMPOSITION CONTAINING 1,2-DIFLUOROETHYLENE OR 1,1,2-TRIFLUOROETHYLENE AND HYDROGEN FLUORIDE
    77.
    发明申请
    AZEOTROPE-LIKE COMPOSITION CONTAINING 1,2-DIFLUOROETHYLENE OR 1,1,2-TRIFLUOROETHYLENE AND HYDROGEN FLUORIDE 有权

    公开(公告)号：US20210346820A1

    公开(公告)日：2021-11-11

    申请号：US17385196

    申请日：2021-07-26

    Applicant: DAIKIN INDUSTRIES, LTD.

    Inventor： Kazuhiro TAKAHASHI

    IPC: B01D3/36 ,  C01B7/19

    Abstract: This disclosure provides a novel azeotrope-like composition and a separation method using the composition. The disclosure provides an azeotrope-like composition comprising 1,2-difluoroethylene (HFO-1132) and hydrogen fluoride; an azeotrope-like composition comprising 1,1,2-trifluoroethylene (HFO-1123) and hydrogen fluoride; and a separation method of a composition comprising hydrogen fluoride and at least one member selected from the group consisting of trans-1,2-difluoroethylene (HFO-1132(E)), cis-1,2-difluoroethylene (HFO-1132(Z)), and 1,1,2-trifluoroethylene (HFO-1123).

    AZEOTROPIC OR AZEOTROPIC-LIKE COMPOSITION COMPRISING 2-CHLORO-1,1-DIFLUOROETHANE
    78.
    发明申请
    AZEOTROPIC OR AZEOTROPIC-LIKE COMPOSITION COMPRISING 2-CHLORO-1,1-DIFLUOROETHANE 有权

    公开(公告)号：US20210340084A1

    公开(公告)日：2021-11-04

    申请号：US17376787

    申请日：2021-07-15

    Applicant: DAIKIN INDUSTRIES, LTD.

    Inventor： Kazuhiro TAKAHASHI

    IPC: C07C19/12 ,  C09K5/04

    Abstract: It is an object to provide a new azeotropic or azeotropic-like composition comprising HCFC-142. The present disclosure provides, as its solution, an azeotropic or azeotropic-like composition comprising a refrigerant, wherein the refrigerant comprises 2-chloro-1,1-difluoroethane (HCFC-142) and at least one additional compound selected from the group consisting of trans-1,2-dichloroethylene (HCO-1130(E)) and the like.

    METHOD FOR PRODUCING PERFLUOROALKADIENE COMPOUNDS
    79.
    发明申请
    METHOD FOR PRODUCING PERFLUOROALKADIENE COMPOUNDS 有权

    公开(公告)号：US20210221757A1

    公开(公告)日：2021-07-22

    申请号：US17225598

    申请日：2021-04-08

    Applicant: DAIKIN INDUSTRIES, LTD.

    Inventor： Yuusuke ETOU ,  Atsushi MARUO ,  Katsuya NAKAI ,  Kazuhiro TAKAHASHI

    IPC: C07C17/25 ,  C07C21/19

    Abstract: According to a method for producing a perfluoroalkadiene compound represented by general formula (1): CF2═CF—(CF2)n-4—CF═CF2 (1), wherein n is an integer of 4 or more, the method comprising a reaction step of adding a nitrogen-containing compound to a solution of a compound represented by general formula (2): X1CF2—CFX2—(CF2)n-4—CF2—CF2X1 (2), wherein n is the same as above, X1 is the same or different and is a halogen atom other than fluorine, and X2 is a halogen atom, the perfluoroalkadiene compound can be obtained at a high yield.

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