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：US12098347B2

公开(公告)日：2024-09-24

申请号：US17933914

申请日：2022-09-21

Applicant: Afton Chemical Corporation

Inventor： Hidetaka Hoshino ,  Akiyuki Honda ,  Guillaume Carpentier

IPC: C10M169/04 ,  C10M135/18 ,  C10M145/14 ,  C10M161/00 ,  C10N20/04 ,  C10N30/00 ,  C10N30/02 ,  C10N40/04 ,  C10N40/26

CPC classification number: C10M169/044 ,  C10M135/18 ,  C10M145/14 ,  C10M161/00 ,  C10M2203/003 ,  C10M2209/084 ,  C10M2219/068 ,  C10N2020/04 ,  C10N2030/02 ,  C10N2030/54 ,  C10N2040/04 ,  C10N2040/26

Abstract: The present disclosure relates to lubricating compositions configured for motorcycles and also to methods of lubricating a motorcycle engine, transmission, and clutch assembly with a single lubricating composition that is generally provided from a common sump or reservoir to achieve improved fuel economy.

公开(公告)号：US12060536B2

公开(公告)日：2024-08-13

申请号：US17922870

申请日：2021-06-04

Applicant: ENEOS CORPORATION

Inventor： Akira Takagi ,  Noriko Ayame

IPC: C10M157/10 ,  C10M145/14 ,  C10M145/16 ,  C10M155/02 ,  C10M169/04 ,  C10N20/04 ,  C10N30/18 ,  C10N70/00

CPC classification number: C10M157/10 ,  C10M145/14 ,  C10M145/16 ,  C10M155/02 ,  C10M169/041 ,  C10M2203/003 ,  C10M2209/084 ,  C10M2209/086 ,  C10M2229/041 ,  C10M2229/051 ,  C10N2020/04 ,  C10N2030/18 ,  C10N2070/00

Abstract: A defoaming agent obtainable by a process that includes: polymerizing (A) at least one polymerizable monomer in a composition, the composition comprising (C) a solvent and (B) at least one non-polymerizable polysiloxane dissolved in the (C) solvent, wherein the component (A) optionally comprises at least one Si-atom-containing monomer in an amount of less than 10 mass % on the basis of the total mass of the component (A).

公开(公告)号：US20240110123A1

公开(公告)日：2024-04-04

申请号：US17933914

申请日：2022-09-21

Applicant: Afton Chemical Corporation

Inventor： Hidetaka Hoshino ,  Akiyuki Honda ,  Guillaume Carpentier

IPC: C10M169/04 ,  C10M135/18 ,  C10M145/14 ,  C10M161/00

CPC classification number: C10M169/044 ,  C10M135/18 ,  C10M145/14 ,  C10M161/00 ,  C10M2203/003 ,  C10M2209/084 ,  C10M2219/068 ,  C10N2040/26

Abstract: The present disclosure relates to lubricating compositions configured for motorcycles and also to methods of lubricating a motorcycle engine, transmission, and clutch assembly with a single lubricating composition that is generally provided from a common sump or reservoir to achieve improved fuel economy.

公开(公告)号：US20240059997A1

公开(公告)日：2024-02-22

申请号：US18271119

申请日：2022-01-04

Applicant: TotalEnergies OneTech

Inventor： Mickael DEBORD ,  Khalid AIT-HAMMOU ,  Samira ADJAL ,  Jerôme VALADE

IPC: C10M137/10 ,  C10M133/16 ,  C10M145/14 ,  C10M169/04

CPC classification number: C10M137/10 ,  C10M133/16 ,  C10M145/14 ,  C10M169/04 ,  C10N2030/04

Abstract: The invention relates to a lubricant composition comprising at least:



a base oil,
a friction modifier comprising molybdenum,
a boron-containing dispersant,
a polymer comprising repeating units which can be obtained by polymerization of monomers (a) with the formula (I):










wherein:
R1 represents a hydrogen atom or a methyl moiety,
X1 represents a moiety chosen from: —O—, —O(AO)m, or —NH—, each moiety A independently representing a C2-C4 alkylene moiety and m represents an integer from 0 to 10.
R2 is a polybutylene moiety, and
p is equal to 0 or 1.

公开(公告)号：US20230383212A1

公开(公告)日：2023-11-30

申请号：US18200043

申请日：2023-05-22

Applicant: Evonik Operations GmbH

Inventor： Emily Clare SCHWEIßINGER ,  Stefan Karl Maier ,  Katja Nothdurft ,  Yvonne Groß-Onnebrink ,  Dieter Janßen ,  Holger Pletsch ,  Stefan Hilf ,  Denise Kleinschmidt ,  Sebastian Babik

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

CPC classification number: C10M145/14 ,  C08F220/1808 ,  C08F220/1809 ,  C10M169/041 ,  C08F2800/20 ,  C10M2203/003 ,  C10M2209/084 ,  C10N2020/04

Abstract: Acrylate-olefin copolymers and a method for the preparation of these copolymers are provided. Lubricant compositions can contain the aforementioned copolymers. The copolymers are useful as a lubricant additive or a synthetic base fluid in a lubricating oil composition, preferably in a gear oil composition, a transmission oil composition, a hydraulic oil composition, an engine oil composition, a marine oil composition, an industrial lubricating oil composition or in grease.

公开(公告)号：US11795413B2

公开(公告)日：2023-10-24

申请号：US17681005

申请日：2022-02-25

Applicant: Evonik Operations GmbH

Inventor： Tsuyoshi Yuki ,  Tomohiro Matsuda ,  Yasuo Arai

IPC: C10M145/14 ,  C08F293/00 ,  C10M169/04 ,  C10N20/04 ,  C10N30/02

CPC classification number: C10M145/14 ,  C08F293/005 ,  C10M169/041 ,  C10M2203/003 ,  C10M2209/084 ,  C10N2020/04 ,  C10N2030/02

Abstract: The invention relates to a poly alkyl(meth)acrylate polymer comprising polybutadiene-based monomer units and a process for preparing the same. The invention also relates to the use of said polymer as a viscosity index improver in lubricant formulation and to lubricant compositions comprising said polymer.

公开(公告)号：US20230212477A1

公开(公告)日：2023-07-06

申请号：US17927830

申请日：2021-06-09

Applicant: TOTALENERGIES ONETECH

Inventor： Didier BEDEL ,  Clarisse DOUCET ,  Frédéric TORT

IPC: C10M169/04 ,  C10M145/14 ,  C10M145/08

CPC classification number: C10M169/041 ,  C10M145/14 ,  C10M145/08 ,  C10M2203/1025 ,  C10M2203/1065 ,  C10N2020/02

Abstract: A composition includes (a) a hydrocarbon fluid comprising less than 1000 ppm by weight of aromatics, a weight ratio normal paraffins/isoparaffins ranging from 0.2 to 1.0 and having an initial boiling point and a final boiling point in the range from 265° C. to 380° C., and (b) a copolymer derived from alpha-olefin monomers and vinyl acetate type monomers and optionally acrylate type monomers.

公开(公告)号：US20220372394A1

公开(公告)日：2022-11-24

申请号：US17761862

申请日：2020-09-24

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Yoriyuki TAKASHIMA ,  Taeko NAKANO ,  Koki HIRANO ,  Motoharu ISHIKAWA

IPC: C10M145/14 ,  C10M143/12 ,  C10M169/04 ,  C08F290/04 ,  C08F220/28 ,  C08F220/18

Abstract: An object is to provide a viscosity index improver composition that is capable of properly regulating the HTHS viscosity in the effective temperature range of a lubricating oil composition to a lower range, and a lubricating oil composition containing the viscosity index improver composition, and the viscosity index improver composition contains a comb-shaped polymer (A) containing a structural unit derived from a macromonomer (α) and a structural unit derived from a particular monomer (A1), the macromonomer (α) having a (meth)acryloyl group at one end, and having a structural unit derived from a monomer (α1) selected from butadiene and hydrogenated butadiene.

公开(公告)号：US20220364013A1

公开(公告)日：2022-11-17

申请号：US17620910

申请日：2020-06-15

Applicant: SANYO CHEMICAL INDUSTRIES, LTD.

Inventor： Ryota SATO ,  Hiroki YAMASHITA ,  Kazunori YOSHIDA

IPC: C10M169/04 ,  C10M145/14 ,  C10M149/10 ,  C10M157/04

Abstract: The present invention aims to provide a viscosity index improver composition and a lubricating oil composition having a low HTHS viscosity at 100° C., an excellent shear stability, and an excellent low temperature viscosity. The present invention relates to, for example, a viscosity index improver composition (C), containing: a copolymer (A) containing a polyolefin-based monomer (a) represented by the following formula (1) as a constituent monomer; a copolymer (B) containing a (meth)acrylic acid alkyl ester (c) having a C12-C15 straight-chain or branched alkyl group and a (meth)acrylic acid alkyl ester (d) having a C16-C20 straight-chain or branched alkyl group as constituent monomers; and a base oil, wherein a weight average molecular weight ratio {(A)/(B)} of the copolymer (A) to the copolymer (B) is 2 to 55, and a weight ratio (A/B) of the copolymer (A) to the copolymer (B) constituting the viscosity index improver composition (C) is 5 to 100: