公开(公告)号：US11718810B2

公开(公告)日：2023-08-08

申请号：US17602113

申请日：2020-04-10

Applicant: ENEOS CORPORATION

Inventor： Akira Takagi ,  Go Tatsumi ,  Noriko Ayame

IPC: C10M155/02 ,  B01D19/04 ,  C10M101/02 ,  C10M105/32 ,  C10M111/02 ,  C10M169/04 ,  C10M177/00 ,  C10N70/00 ,  C10N40/04 ,  C10N20/04 ,  C10N30/02 ,  C10N30/18 ,  C10N40/25

CPC classification number: C10M155/02 ,  B01D19/0409 ,  B01D19/0427 ,  C10M101/02 ,  C10M105/32 ,  C10M111/02 ,  C10M169/041 ,  C10M177/00 ,  C10M2203/1006 ,  C10M2207/2805 ,  C10M2229/041 ,  C10M2229/051 ,  C10N2020/04 ,  C10N2030/02 ,  C10N2030/18 ,  C10N2040/042 ,  C10N2040/25 ,  C10N2070/02

Abstract: A lubricating oil composition including: a lubricating base oil; (A) a first defoaming agent, the first defoaming agent being (A1) a first polymer, or (A2) a second polymer, or any combination thereof; and (B) a second defoaming agent, the second defoaming agent being a silicone defoaming agent, the (A1) first polymer including: a first polymer chain including a polysiloxane structure, the polysiloxane structure having a polymerization degree of 5 to 2000 and being represented by the following general formula (1); and a second polymer chain bonded with the first polymer chain, the second polymer chain including a repeating unit represented by the following general formula (2), the (A2) second polymer being a copolymer of a first monomer component and a second monomer component, the first monomer component represented by the general formula (7) or (8), the second monomer component represented by the general formula (9).

公开(公告)号：US12037561B2

公开(公告)日：2024-07-16

申请号：US18020743

申请日：2021-08-10

Applicant: JTEKT CORPORATION ,  ENEOS CORPORATION

Inventor： Takeshi Tsuda ,  Yurie Hagino ,  Kazumi Sakai ,  Yusuke Ayame ,  Go Tatsumi ,  Kiyomi Sakamoto

IPC: C10M169/00 ,  C10M105/18 ,  C10M115/08 ,  C10M135/10 ,  C10M135/20 ,  C10M137/02 ,  C10M141/10 ,  C10N30/00 ,  C10N40/02 ,  C10N50/10

CPC classification number: C10M169/00 ,  C10M105/18 ,  C10M115/08 ,  C10M135/10 ,  C10M135/20 ,  C10M137/02 ,  C10M141/10 ,  C10M2207/0406 ,  C10M2215/1026 ,  C10M2219/044 ,  C10M2219/046 ,  C10M2219/08 ,  C10M2223/049 ,  C10N2030/43 ,  C10N2040/02 ,  C10N2050/10

Abstract: A grease composition including: a base oil; a thickener; a zinc sulfonate; a polysulfide; an overbased calcium sulfonate; and triphenyl phosphite, in which a proportion of the zinc sulfonate with respect to a total mass of the base oil and the thickener is 0.030 mass % to 0.045 mass % in terms of a zinc content, a proportion of the polysulfide with respect to the total mass of the base oil and the thickener is 0.16 mass % to 0.24 mass % in terms of a sulfur content, a proportion of the overbased calcium sulfonate with respect to the total mass of the base oil and the thickener is 0.010 mass % to 0.015 mass % in terms of a calcium content, and a proportion of the triphenyl phosphite with respect to the total mass of the base oil and the thickener is 0.24 mass % to 0.36 mass %.

公开(公告)号：US11046907B2

公开(公告)日：2021-06-29

申请号：US16481231

申请日：2018-02-22

Applicant: ENEOS CORPORATION

Inventor： Go Tatsumi ,  Akira Takagi

IPC: C10M155/02 ,  B01D19/04 ,  C08G77/442 ,  C10M169/04 ,  C10N20/04 ,  C10N30/18 ,  C10N40/04 ,  C10N40/25

Abstract: A defoaming agent including a polymer, the polymer including: at least one first polymer chain including a polysiloxane structure represented by the following general formula (1); and at least one second polymer chain including a repeating unit represented by the following general formula (2) and bonded to the first polymer chain: wherein in the formula (1), repeating units may be in any order; each of R1 and R2 is independently a C1-18 organic group comprising no fluorine atom; at least one of R3 and R4 is the organic group comprising no less than 3 fluorine atoms; m is an integer of no less than 1; and n+m is 5 to 2000, wherein in the formula (2), X1 is a repeating unit obtainable by polymerization of an ethylenic unsaturated group; Y1 is a substituted or unsubstituted C1-40 hydrocarbyl group; and Z1 is a linking group linking X1 and Y1.

公开(公告)号：US11952549B2

公开(公告)日：2024-04-09

申请号：US17763368

申请日：2020-09-23

Applicant: JTEKT CORPORATION ,  ENEOS CORPORATION

Inventor： Kazunori Miyake ,  Kiyomi Sakamoto ,  Yusuke Ayame ,  Go Tatsumi

IPC: C10M169/02 ,  C10M115/08 ,  C10N30/06 ,  C10N40/02 ,  C10N50/10 ,  F16C33/66

CPC classification number: C10M169/02 ,  C10M115/08 ,  F16C33/6633 ,  C10M2207/2835 ,  C10M2215/1026 ,  C10N2030/06 ,  C10N2040/02 ,  C10N2050/10 ,  C10M2207/2835 ,  C10N2020/02

Abstract: Examples of the ester oil include diester oils such as dibutyl sebacate, dioctyl sebacate, di-2-ethylhexyl sebacate, dioctyl adipate, diisodecyl adipate, ditridecyl adipate, ditridecyl phthalate, and methyl acetyl ricinolate; aromatic ester oils such as trioctyl trimellitate, tridecyl trimellitate, and tetraoctyl pyromellitate; polyol ester oils such as trimethylolpropane caprylate, trimethylolpropane pelargonate, pentaerythritol-2-ethylhexanoate, and pentaerythritol pelargonate; carbonate oil; complex ester oil which is an oligoester of polyhydric alcohol and mixed fatty acid including dibasic acid and monobasic acid; etc.