公开(公告)号：US12215293B1

公开(公告)日：2025-02-04

申请号：US18408090

申请日：2024-01-09

Applicant: Afton Chemical Corporation

Inventor： Sheng Jiang ,  Kearsley Dillon

IPC: C10M133/42

Abstract: Melamine-based compounds suitable, in one embodiment, as a corrosion inhibitor for lubricating compositions and, in particular, a corrosion inhibitor for transmission fluids (manual, automatic, dual-clutch, or electric), axle fluids, differential fluids, tractor fluids, industrial gear fluids, and/or lubricating fluids for other gear-type applications. The melamine-based compounds are in the form of oil-soluble hydrocarbyl-substituted melamine derivatives comprising the reaction product of a hydrocarbyl-substituted succinic anhydride reacted with melamine at conditions effective to form a hydrocarbyl-substituted melamine polycarboxylic acid or anhydride compound.

公开(公告)号：US12215290B2

公开(公告)日：2025-02-04

申请号：US18276156

申请日：2022-02-09

Applicant: MORESCO CORPORATION

Inventor： Tatsuya Maeda ,  Mayumi Hayashi ,  Kohei Yamashita ,  Masayuki Hata

IPC: C10M105/18 ,  C10N20/04

Abstract: One aspect of the present invention relates to a naphthyl phenyl ether compound represented by formula (1): in the formula (1), R1 and R2 are the same or different and each represent a linear or branched hydrocarbon group having 6 to 28 carbon atoms; m and n are each a real number of 0 or more and satisfy 1.0≤m+n≤3.0.

公开(公告)号：US20250034309A1

公开(公告)日：2025-01-30

申请号：US18715763

申请日：2022-11-29

Applicant: BASF SE

Inventor： Ivette GARCIA CASTRO ,  Rene KOSCHABEK ,  Andrea MISSKE ,  Christoph FLECKENSTEIN

IPC: C08F290/04 ,  C08F8/32 ,  C08F220/14 ,  C08F220/18 ,  C08F222/04 ,  C10M143/06 ,  C10M169/04 ,  C10N20/00 ,  C10N20/02 ,  C10N30/02

Abstract: The present invention relates to a comb copolymer comprising in polymerized form up to 40 wt % of a PIB macromonomer of the formula (I) and a hydrophobic monomer of the formula (II). The invention further relates to a method of preparing the PIB macromonomer of the formula (I) where a polyisobutene amine of the formula (IV) is reacted with (meth)acrylic acid anhydride; and to a lubricant comprising a base oil, the comb copolymer, and further lubricant additives; and to a use of the comb copolymer for improving the viscosity index of a lubricating oil.

公开(公告)号：US12209226B2

公开(公告)日：2025-01-28

申请号：US18264083

申请日：2022-03-24

Applicant: CHEVRON ORONITE COMPANY LLC ,  CHEVRON U.S.A. INC.

Inventor： Jiun-Le Shih ,  Chung-Hao Kuo ,  Charles Paul Loeper ,  Jeanelle Smoot

IPC: C10M133/08 ,  C10L1/22 ,  C10M141/06

Abstract: Method for preventing or reducing low speed pre-ignition events in a spark-ignited internal combustion engine is provided. The method includes supplying to the engine the lubricant composition comprising a primary additive having a structure given by or a salt thereof. R1 and R2 are independently H, C1-C20 hydrocarbyl group, carboxyl group, ester, amide, ketone, ether, or hydroxyl group. R3 and R4 are independently H, C1-C20 hydrocarbyl group, carboxyl group, ester, amide, ketone, ether, amino, or hydroxyl group or wherein R3 and R4 are part of a cyclic group. R5 is C1-C100 hydrocarbyl group, carboxyl group, ether, or hydroxyl group. Lastly, p is 0 to 2, n is 1 to 5, m is 0 to 2, and p+n+m is less than 6.

公开(公告)号：US20250027008A1

公开(公告)日：2025-01-23

申请号：US18713290

申请日：2022-12-01

Applicant: Dow Global Technologies LLC

Inventor： Hema Sagar Giddi

IPC: C10M173/02 ,  C10M103/02 ,  C10M119/20 ,  C10M135/08 ,  C10N20/06 ,  C10N30/04 ,  C10N50/00

Abstract: A lubricant composition includes water, graphite, a thickener and an alkylphenol ether sulfate dispersant.

公开(公告)号：US12203047B2

公开(公告)日：2025-01-21

申请号：US18267550

申请日：2021-12-09

Applicant: DIC Corporation

Inventor： Ryuta Fujiwara ,  Yoshiyuki Yaoita ,  Nobuyuki Koike

IPC: C10M169/04 ,  C08F220/34 ,  C08F290/06 ,  C10M149/02 ,  C10M155/02 ,  C10N20/04 ,  C10N30/18 ,  C10N40/00 ,  C10N40/04 ,  C10N40/25

Abstract: Provided is a defoaming agent showing an excellent defoaming property. Specifically, the defoaming agent includes a polymer containing as a polymerization component a polymerizable monomer (1) having a urethane bond and a fluorine-containing functional group and/or a silicone chain-containing functional group.

公开(公告)号：US12203046B2

公开(公告)日：2025-01-21

申请号：US18014651

申请日：2021-07-05

Applicant: JTEKT CORPORATION ,  KYODO YUSHI CO., LTD.

Inventor： Kanako Niiya ,  Kazunori Miyake ,  Masayuki Murakami ,  Shota Akimoto ,  Takahiro Maeda ,  Kaname Nishi ,  Michitaka Yoshihara ,  Kazuki Isa ,  Koki Ando

IPC: C10M137/10 ,  C10M125/22 ,  C10M129/26 ,  C10M133/12 ,  C10M169/06 ,  C10N10/04 ,  C10N30/08 ,  C10N30/10 ,  C10N30/12 ,  C10N40/02 ,  C10N50/10

Abstract: The present invention relates to a grease composition including: a base oil; a thickener; a rust inhibitor; and an extreme pressure agent, in which the rust inhibitor includes, with respect to a total mass of the grease composition: 0.10 mass % to 10.00 mass % of a calcium sulfonate; 0.20 mass % to 10.00 mass % of a zinc sulfonate; and 0.10 mass % to 10.00 mass % of a zinc carboxylate, and the extreme pressure agent includes, with respect to the total mass of the grease composition, 2.00 mass % to 14.00 mass % of a zinc dialkyldithiophosphate.

公开(公告)号：US12203043B2

公开(公告)日：2025-01-21

申请号：US18546619

申请日：2022-03-16

Applicant: SHELL USA, INC.

Inventor： Kengo Suzuki

IPC: C10M111/04 ,  C10M101/02 ,  C10M107/02 ,  C10M111/02 ,  C10N20/02 ,  C10N30/00 ,  C10N30/02 ,  C10N30/12 ,  C10N40/04

Abstract: The present invention provides a lubricating oil composition used in the reduction gearbox or transmission of an electric vehicle or a hybrid vehicle, wherein the lubricating oil contains a base oil, and the aromatic ring content of the base oil is from 3,500 to 15,000 ppm in terms of the mass of the base oil.

公开(公告)号：US20250019614A1

公开(公告)日：2025-01-16

申请号：US18712709

申请日：2022-11-21

Applicant: Klueber Lubrication Muenchen GmbH & Co. KG

Inventor： Martin SCHWEIGKOFLER ,  Martin SCHMIDT-AMELUNXEN ,  Thomas KILTHAU ,  Karl EGERSDOERFER ,  Daniel CHALL ,  Christof SCHMITZ ,  Phillipp LORENZ ,  Petra SEIBEL ,  Tilman KRAUCH

IPC: C10M169/06 ,  C10N10/04 ,  C10N30/00 ,  C10N50/10

Abstract: The invention relates to a high-temperature grease comprising (A) 20 to 88 wt %, based on the overall weight of the grease, of a base oil, (B) 1 to 55 wt. %, based on the overall weight of the grease, of a fluorine-free material, said fluorine-free material having an average particle size (D50) of less than 80 μm wherein the grease does not contain polytetrafluorothylene and/or contains polytetrafluorothylene in a proportion of less than 4 wt. %, based on the overall weight of the grease.

公开(公告)号：US12195696B2

公开(公告)日：2025-01-14

申请号：US18526669

申请日：2023-12-01

Applicant: ReGen III Corp.

Inventor： Gordon Driedger ,  Zachary Moore

IPC: C10M175/00 ,  C10G67/04 ,  C10G67/14 ,  C10M175/02

Abstract: A method for re-refining used oils comprises contacting feedstock comprising purified used oil with extraction solvent to perform continuous liquid-liquid solvent extraction, to produce an extract stream comprising the extraction solvent and an extract dissolved in the extraction solvent. The feedstock and the extraction solvent are agitated by a variable speed agitator during the solvent extraction at a selected agitation speed. The extract is separated from the extraction solvent and subjected to a continuous flow liquid phase hydrogenation treatment to produce an oil product. A system for performing the method includes a purification unit for purifying the used oil; an extraction column for extracting the extract from the feedstock; and a continuous flow liquid phase hydrogenation unit. The extraction column comprises an agitator configured to agitate the feedstock and the extraction solvent flowing through the extraction column at a variable agitation speed.