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    POLYALKYLENE GLYCOL COMPOUND
    1.
    发明申请
    POLYALKYLENE GLYCOL COMPOUND 有权

    公开(公告)号：US20220081513A1

    公开(公告)日：2022-03-17

    申请号：US17418083

    申请日：2019-12-26

    Applicant: IDEMITSU KOSAN CO.,LTD.

    Inventor： So NAKAJIMA ,  Yukio YOSHIDA

    IPC: C08G65/331 ,  C08G65/16 ,  C08K11/00 ,  C10M107/34 ,  C07C43/215 ,  C07C43/178 ,  C07C43/15 ,  C10M169/04

    Abstract: A polyalkylene glycol-based compound of formula (1): may be one in which R1 is a monovalent hydrocarbon group having 1 to 32 carbon atoms, a monovalent aromatic hydrocarbon group having 6 to 42 ring carbon atoms, a monovalent acyl group having 2 to 32 carbon atoms, or a monovalent oxygen-containing hydrocarbon group having 2 to 32 carbon atoms; R2 is a monovalent hydrocarbon group having 1 to 32 carbon atoms, a monovalent aromatic hydrocarbon group having 6 to 42 ring carbon atoms, a monovalent acyl group having 2 to 32 carbon atoms, a monovalent oxygen-containing hydrocarbon group having 2 to 32 carbon atoms, or a hydrogen atom; R3 is a divalent hydrocarbon group having 4 carbon atoms; R4 is a divalent hydrocarbon group having 2 or 3 carbon atoms; m and n are respectively numbers between 1 and 40 and 0 and 20; and m/(m+n)≥0.5.

    LUBRICATING OIL ADDITIVE COMPOSITION AND LUBRICATING OIL COMPOSITION
    4.
    发明公开
    LUBRICATING OIL ADDITIVE COMPOSITION AND LUBRICATING OIL COMPOSITION 审中-公开

    公开(公告)号：US20240150670A1

    公开(公告)日：2024-05-09

    申请号：US18547546

    申请日：2022-03-31

    Applicant: IDEMITSU KOSAN CO.,LTD.

    Inventor： Shota KATO ,  Yukio YOSHIDA

    IPC: C10M145/14 ,  C08F220/18 ,  C08F220/20 ,  C10M169/04

    CPC classification number: C10M145/14 ,  C08F220/1807 ,  C08F220/1812 ,  C08F220/20 ,  C10M169/04 ,  C10N2030/06

    Abstract: A lubricating oil additive composition containing a polymer-based compound may be excellent in solubility in a mineral oil and wear resistance, and favorable as a friction modifier. A lubricating oil composition may contain the additive composition. Such a lubricating oil additive composition may contain a copolymer (X) containing: (a) a structural unit derived from a monomer (A) having a (meth)acryloyl group and a linear or branched alkyl group having 6 to 24 carbon atoms; (b) a structural unit derived from a monomer (B) having a (meth)acryloyl group and a polar group; and (c) a structural unit derived from a monomer (C) having a polymerizable functional group and a cyclic structure group. The copolymer (X) may have a content of the structural unit (a) of 43% by mol or more based on the total structural units of the copolymer (X), and a mass average molecular weight (Mw) of 5,000 to 90,000.

    VAPOR FILM-RUPTURING AGENT, AND THERMAL TREATMENT OIL COMPOSITION
    6.
    发明申请
    VAPOR FILM-RUPTURING AGENT, AND THERMAL TREATMENT OIL COMPOSITION 审中-公开

    公开(公告)号：US20180010203A1

    公开(公告)日：2018-01-11

    申请号：US15544180

    申请日：2016-01-19

    Applicant: IDEMITSU KOSAN CO., LTD.

    Inventor： Yukio YOSHIDA ,  Hideaki HATTORI ,  Akinori YOMOGITA

    IPC: C21D1/58

    CPC classification number: C21D1/58 ,  C10M159/04 ,  C10M2203/1006 ,  C10N2230/02 ,  C10N2240/40 ,  C10N2240/402

    Abstract: A vapor film-rupturing agent is provided that is prepared from asphalt as a staring material, so as to have a fraction (x) (% by mass) of a saturated component and a fraction (y) (% by mass) of an asphaltene component based on the total fraction 100% by mass of the saturated component, the asphaltene component, an aromatic component, and a resin component obtained by any one of analysis methods described in the Japan Petroleum Institute Standard and Manuals Testing Method for Petroleum Products JPI-5S-70-10 and the British Standard Test Method IP-469 that satisfy one or more of the following conditions (1) to (3): condition (1): 1.2926×(x)/100−8.113×(y)/100+2.3384≦2.400, condition (2): (y) ≧7.0, and condition (3): ((y)/(x)) ≧0.5. The vapor film-rupturing agent is capable of preparing a thermal treatment oil composition having a high vapor film-rupturing effect with a characteristic number of seconds in the cooling capability test according to JIS K2242 (2012) of 2.50 seconds or less.

    DIALKYL ETHER, AND LUBRICANT BASE OIL AND LUBRICATING OIL COMPOSITION CONTAINING THE SAME
    7.
    发明申请
    DIALKYL ETHER, AND LUBRICANT BASE OIL AND LUBRICATING OIL COMPOSITION CONTAINING THE SAME 有权
    DIALKYL醚及润滑油基油及其润滑油组合物

    公开(公告)号：US20140187459A1

    公开(公告)日：2014-07-03

    申请号：US14136397

    申请日：2013-12-20

    Applicant: Idemitsu Kosan Co., Ltd.

    Inventor： Yukio YOSHIDA ,  Miki Monoi

    IPC: C10M105/18

    CPC classification number: C10M105/18 ,  C10M2205/0285 ,  C10M2207/0406 ,  C10N2220/022 ,  C10N2220/028 ,  C10N2230/02 ,  C10N2240/04 ,  C10N2240/10

    Abstract: The invention provides a dialkyl ether represented by the following formula (1): (wherein each of R1 and R2 represents a C1 to C20 alkyl group, and n is an integer of 1 to 20), and a lubricating base oil and a lubricating oil composition containing the dialkyl ether. The lubricating base oil and the lubricating oil composition exhibit low viscosity, excellent viscosity-temperature characteristics, and high fluidity at low temperature.

    Abstract translation: 本发明提供由下式（1）表示的二烷基醚：其中，R 1和R 2各自表示C1〜C20烷基，n为1〜20的整数），润滑油基础油和润滑油 含有二烷基醚的组合物。 润滑油基油和润滑油组合物在低温下表现出低粘度，优异的粘度 - 温度特性和高流动性。

    REFRIGERATOR OIL COMPOSITION AND MIXED COMPOSITION FOR REFRIGERATOR
    8.
    发明申请
    REFRIGERATOR OIL COMPOSITION AND MIXED COMPOSITION FOR REFRIGERATOR 有权

    公开(公告)号：US20250109348A1

    公开(公告)日：2025-04-03

    申请号：US18708253

    申请日：2022-11-14

    Applicant: IDEMITSU KOSAN CO.,LTD.

    Inventor： Akio KOJIMA ,  Tadashi KISEN ,  Yukio YOSHIDA ,  So NAKAJIMA

    IPC: C10M105/36 ,  C09K5/04 ,  C10N40/30

    Abstract: A refrigerator oil composition may have an appropriate dissolution viscosity when a hydrocarbon-based refrigerant is dissolved and having a low solubility of the hydrocarbon-based refrigerant. A mixed composition for a refrigerator may include such a refrigerator oil composition. Such a refrigerator oil composition used for a refrigerant may include a hydrocarbon-based refrigerant, and one or more aromatic ester-based compounds (A) of formula (1): in which R1 is a linear or branched alkyl group having 5 or more and 24 or less carbon atoms or a linear or branched alkenyl group having 5 or more and 24 or less carbon atoms; m is an integer of 2 or more and 4 or less; and a plurality of R1's may be the same or different.

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