公开(公告)号：US12195694B2

公开(公告)日：2025-01-14

申请号：US18570856

申请日：2022-08-30

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Akihiko Yano ,  Hiroaki Takeuchi ,  Shuichi Isayama ,  Risako Koba

IPC: C10M169/04 ,  C10M125/22 ,  C10M139/02 ,  C10M141/12 ,  C10N50/00

Abstract: A method for forming a coating film on a sliding surface of a sliding member includes: a first contact step of supplying a lubricant composition containing tungsten disulfide to the sliding surface to bring the tungsten disulfide into contact with the sliding surface; and a second contact step of bringing a silane compound that is dialkoxysilane, trialkoxysilane, tetraalkoxysilane, or a polymer or a copolymer of dialkoxysilane, trialkoxysilane, and tetraalkoxysilane into contact with the sliding surface.

公开(公告)号：US12195691B2

公开(公告)日：2025-01-14

申请号：US18256375

申请日：2021-12-28

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Yukio Yoshida ,  Shota Kato ,  Hideto Kamimura

IPC: C10M145/14 ,  C08F220/18 ,  C08F220/20 ,  C08F230/02 ,  C10M153/02 ,  C10M169/04 ,  C10N20/04 ,  C10N30/06 ,  C10N30/08 ,  C10N40/02

Abstract: A lubricating oil additive composition that is suitable as a load bearing additive, and is excellent in wear resistance, extreme pressure property, and thermal stability, and a lubricating oil composition containing the lubricating oil additive composition. A lubricating oil additive composition containing a poly(meth)acrylate-based copolymer (X) containing a structural unit (a) derived from a particular alkyl (meth)acrylate (A), a structural unit (b) derived from a particular hydroxy group containing (meth)acrylate (B), and a structural unit (c) derived from a particular phosphorus-containing (meth)acrylate (C).

公开(公告)号：US12195688B2

公开(公告)日：2025-01-14

申请号：US18507758

申请日：2023-11-13

Applicant: Northwestern University ,  U.S. Army Research Laboratory

Inventor： Stephen Berkebile ,  Harry D. Wise ,  Tobias Vela Martin ,  Qian Wang ,  Yip-Wah Chung ,  Zaid Ali Subhi Al Hassan

IPC: C10M129/46 ,  C10M101/02 ,  C10N40/20

Abstract: Methods of pre-conditioning and lubricating the rubbing surfaces of steel substrates are provided. The methods include a pre-conditioning step in which a hydrocarbon fluid having cycloalkane carboxylic acid additives dispersed therein is used to form a tribofilm on a rubbing surface of a device, following by replacing the pre-conditioning lubricant with a cycloalkane-carboxylic acid-free hydrocarbon lubricant for the regular operation of the device. The tribofilm formed during the pre-conditioning step provides long-term friction and wear reduction at the rubbing surfaces, even after it is replaced, and allows for the subsequent operation of the device without the need to change the composition of the regularly used lubricant.

公开(公告)号：US20250011671A9

公开(公告)日：2025-01-09

申请号：US17717647

申请日：2022-04-11

Applicant: THE BOEING COMPANY ,  Commonwealth Scientific and Industrial Research Organisation

Inventor： Mathew John BALLARD ,  Philip Stephen CASEY ,  Susan Wan-Yi HOLMES ,  Cameron David WAY ,  Kevin Norman WINZENBERG ,  James HULL

IPC: C10M107/50 ,  C10M137/12

Abstract: The present disclosure relates to polysiloxanes, processes for preparing polysiloxanes, and hydraulic fluids comprising polysiloxanes. This disclosure also relates to hydraulic fluids comprising one or more polysiloxane compounds and diphosphonate compounds, and to the use of diphosphonate compounds in hydraulic fluids or as additives or components in various compositions, for example to provide fire retardant properties to a fluid or composition. This disclosure also relates to use of the compositions as hydraulic fluids, which may be used in various machines, vehicles and craft, including aircraft.

公开(公告)号：US20250002806A1

公开(公告)日：2025-01-02

申请号：US18736805

申请日：2024-06-07

Applicant: Afton Chemical Corporation

Inventor： Susie Hurley

IPC: C10M169/04 ,  C10M135/36 ,  C10M137/08 ,  C10M137/10 ,  C10M141/10 ,  C10M155/00 ,  C10M161/00 ,  C10M177/00 ,  C10N20/02 ,  C10N20/04 ,  C10N30/02 ,  C10N30/04 ,  C10N30/06 ,  C10N40/00 ,  C10N70/00

Abstract: An electric motor lubricating fluid for an electric motor system including a lubricating base oil, at least one sulfurized component, at least two phosphorus-providing additives, and at least one high molecular weight dispersant. The electric motor lubricating fluid provides acceptable wear performance as well as good electrical conductivity and oxidative stability for use in electric motor system fluids having a low viscosity.

公开(公告)号：US20250002805A1

公开(公告)日：2025-01-02

申请号：US18733346

申请日：2024-06-04

Applicant: Afton Chemical Corporation

Inventor： Kristi Engelman ,  Amy M. James ,  John Atherton ,  Gregory Guinther

IPC: C10M169/04 ,  C10M133/12 ,  C10M135/10 ,  C10M159/12 ,  C10N30/00 ,  C10N30/04 ,  C10N30/10 ,  C10N40/04 ,  C10N40/25

Abstract: The present disclosure relates to booster additive packages and lubricating oil compositions including the booster additive packages improved deposits, sludge, wear, TBN retention, and/or rust protection. The booster additive package includes at least one or more oil soluble nitrogen-containing compounds and one or more detergent additives.

公开(公告)号：US20250002803A1

公开(公告)日：2025-01-02

申请号：US18707074

申请日：2022-11-03

Applicant: Chevron Oronite Company LLC

Inventor： Kevin J. CHASE ,  Shelby A. SKELTON ,  George D. HURON

IPC: C10M125/22 ,  C10M129/08 ,  C10M135/10 ,  C10M169/04 ,  C10N10/04 ,  C10N30/04 ,  C10N30/06 ,  C10N40/14

Abstract: The present application pertains to functional fluids or EV fluids. The functional fluids may comprise a major amount of an oil of lubricating viscosity, at least one overbased sulfonate detergent. and an anti-fatigue additive. The functional fluids or EV fluids provide surprising and unexpected fatigue properties.

公开(公告)号：US20250002802A1

公开(公告)日：2025-01-02

申请号：US18690793

申请日：2022-09-20

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Kazushige MATSUBARA

IPC: C10M111/04 ,  C10M101/02 ,  C10M105/36 ,  C10M107/02 ,  C10M111/02 ,  C10M133/16 ,  C10M169/04

Abstract: A lubricant base oil may contain at least one ester compound (A) selected from a diester (A1) having 24 or more carbon atoms and a triester (A2) having 24 or more carbon atoms and at least one base oil (B) selected from a mineral oil (B1) and a synthetic oil (B2) other than an ester synthetic oil. A lubricating oil composition may contain such a lubricant base oil.

公开(公告)号：US20240425774A1

公开(公告)日：2024-12-26

申请号：US18822690

申请日：2024-09-03

Applicant: Afton Chemical Corporation

Inventor： Leah Donham ,  Abaigeal Ritzenthaler

IPC: C10M137/10 ,  C10M113/02 ,  C10M169/04 ,  C10N10/04 ,  C10N20/02 ,  C10N30/00 ,  C10N30/06 ,  C10N40/25

Abstract: The present disclosure relates to lubricating compositions and, in particular, lubricating compositions suitable for medium and/or heavy duty diesel engines having low levels of phosphorus and/or zinc but still achieving good valve train wear by including an antiwear system provided from overbased zinc dihydrocarbyl dithiophosphates having a selected average degree of branching and a certain percent of hydrocarbyl groups derived from secondary alcohols.

公开(公告)号：US12173248B2

公开(公告)日：2024-12-24

申请号：US18287748

申请日：2022-04-19

Applicant: LANXESS Corporation

Inventor： Huiyuan Chen ,  Cyril Migdal ,  Kevin DiNicola ,  Robert G. Rowland

IPC: C10M133/12 ,  C10N30/10

Abstract: Liquid alkylated N-phenyl-α-naphthylamine (PANA) compositions are disclosed containing a high concentration of mono-alkylated PANA and low levels of di-alkylated and less than 1% by weight of unsubstituted PANA. The novel compositions may be prepared by controlled alkylation of PANA with propylene oligomers followed by subsequent alkylation with at least one second olefin.