# US 2019/0169520 A1 · Lubricant composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0169520 A1 - Document ID: US20190169520A1 - Status: Published application - Kind: A1 - Application number: 16/320,811 - Filed: 2017-07-28 - Published: 2019-06-06 - Earliest claimed: 2016-07-29 - Assignees: ExxonMobil Research and Engineering Company; Toyota Jidosha Kabushiki Kaisha - Applicants: ExxonMobil Research and Engineering Company; Toyota Jidosha Kabushiki Kaisha - Inventors: Ko Onodera; Hiroyuki Suzuki; Toyoharu Kaneko; Kazuo Yamamori - Web page: https://patentgrep.com/patent/US20190169520A1 ## CPC - C10M 129/54: containing hydroxy groups - C10M 125/22: Compounds containing sulfur, selenium or tellurium - C10M 163/00: Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential - C10M 135/18: thiocarbamic type, e.g. containing the groups [IMAGE cpc-sch-C10M-1027.gif] - C10M 137/10: Thio derivatives - C10M 2205/173: used as base material - C10M 2207/023: having hydroxy groups bound to carbon atoms of six-membered aromatic rings - C10M 2207/026: with tertiary alkyl groups - C10M 2207/262: derived from hydroxy substituted aromatic acids, e.g. salicylates - C10M 2209/084: Acrylate; Methacrylate - C10M 2215/28: Amides; Imides - C10M 2219/046: Overbased sulfonic acid salts - C10M 2219/068: Thiocarbamate metal salts - C10M 2223/045: Metal containing thio derivatives - C10N 2010/04: Groups 2 or 12 - C10N 2010/12: Groups 6 or 16 - C10N 2030/02: Pour-point; Viscosity index - C10N 2030/04: Detergent property or dispersant property - C10N 2030/06: Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure - C10N 2030/52: {Base number [TBN]} - C10N 2040/25: Internal-combustion engines - C10M: LUBRICATING COMPOSITIONS (well drilling compositions C09K8/02); USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION (mould release, i.e. separating, agents for metals B22C3/00, for plastics or substances in a plastic state, in general B29C33/56, for glass C03B40/02; textile lubricating compositions D06M11/00, D06M13/00, D06M15/00; immersion oils for microscopy G02B21/33) - C10N: INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS ## Abstract A lubricant composition which is capable of reducing friction, while ensuring anti-wear properties even if the viscosity thereof is decreased. A lubricant composition which contains a lubricant base oil, (A1) a metal salicylate and (B) a molybdenum-based friction regulator, and which is characterized in that: the amount of the component (B) is 500 to 1,500 ppm by mass in terms of the molybdenum concentration [B] in the lubricant composition; the component (A1) is calcium salicylate, magnesium salicylate or a combination thereof; the calcium concentration [Ca] based on the calcium salicylate in the lubricant composition is 0 to 1,800 ppm by mass; the magnesium concentration [Mg] based on the magnesium salicylate in the lubricant composition is 0 to 1,800 ppm by mass; and the total of the calcium concentration [Ca] and the magnesium concentration [Mg] is 200 to 3,000 ppm by mass. ## Claims ### Claim 1 A lubricant composition comprising: a lubricant base oil; (A1) a metal salicylate; and (B) a molybdenum-based friction modifier, wherein the amount of component (B) is in a range of 500 to 1,500 ppm by weight in terms of a concentration [B] in ppm by weight of molybdenum in the lubricant composition, component (A1) is any one of calcium salicylate, magnesium salicylate, and a combination thereof, the amount of calcium salicylate is 0 to 1,800 ppm by weight in terms of a concentration [Ca] in ppm by weight of calcium derived from calcium salicylate in the lubricant composition, the amount of magnesium salicylate is 0 to 1,800 ppm by weight in terms of a concentration [Mg] in ppm by weight of magnesium derived from magnesium salicylate in the lubricant composition, and a total of [Ca] and [Mg] is in a range of 200 to 3,000 ppm by weight. ### Claim 2 (depends on 1) The lubricant composition according to claim 1, which further comprises a metallic detergent other than component (A1) as a metallic detergent (A), wherein the weight of component (A1) based on the total weight of the metallic detergent (A) is in a range of 5 to 100% by weight in terms of a ratio of [Ca] and [Mg] based on a total concentration [A] in ppm by weight of metals derived from the metallic detergent in the lubricant composition. ### Claim 3 (depends on 1) The lubricant composition according to claim 1, wherein the metal salicylate (A1) is a combination of magnesium salicylate and calcium salicylate. ### Claim 4 (depends on 1) The lubricant composition according to claim 1, wherein the metal salicylate (A1) is at least one kind of magnesium salicylate. ### Claim 5 (depends on 1) The lubricant composition according to claim 1, wherein the lubricant composition further comprises (A2) a metallic detergent other than component (A1) as the metallic detergent (A), component (A2) comprises at least one selected from magnesium, calcium and sodium, and the amount of the metallic detergent (A) satisfies following equation (1): [A]/[B]≤4.5 (1) wherein [A] represents a total concentration in ppm by weight of magnesium, calcium and sodium in the lubricant composition. ### Claim 6 (depends on 1) The lubricant composition according to claim 1, wherein the amount of the metal salicylate (A1) satisfies following equation (2): [A1]/[B]<4.5 (2) wherein [A1] represents a total concentration ([Ca]+[Mg]) in ppm by weight of magnesium and calcium that are derived from component (A1) in the lubricant composition. ### Claim 7 (depends on 1) The lubricant composition according to claim 1, which has a CCS viscosity at −35° C. of 6.2 Pa·s or less. ### Claim 8 (depends on 1) The lubricant composition according to claim 1, which has a high-temperature high-shear viscosity (HTHS viscosity) at 150° C. of 1.7 to 2.9 mPa·s. ### Claim 9 (depends on 1) The lubricant composition according to claim 1, which has a kinematic viscosity at 100° C. of less than 9.3 mm2/s. ### Claim 10 (depends on 1) The lubricant composition according to claim 1, which is for an internal combustion engine. ### Claim 11 (depends on 1) The lubricant composition according to claim 1, wherein the metal salicylate (A1) is a combination of magnesium salicylate and calcium salicylate. ### Claim 12 (depends on 1) The lubricant composition according to claim 1, wherein the metal salicylate (A1) is at least one kind of magnesium salicylate. ### Claim 13 (depends on 2) The lubricant composition according to claim 2, wherein the lubricant composition further comprises (A2) a metallic detergent other than component (A1) as the metallic detergent (A), component (A2) comprises at least one selected from magnesium, calcium and sodium, and the amount of the metallic detergent (A) satisfies following equation (1): [A]/[B]≤4.5 (1) wherein [A] represents a total concentration in ppm by weight of magnesium, calcium and sodium in the lubricant composition. ### Claim 14 (depends on 3) The lubricant composition according to claim 3, wherein the lubricant composition further comprises (A2) a metallic detergent other than component (A1) as the metallic detergent (A), component (A2) comprises at least one selected from magnesium, calcium and sodium, and the amount of the metallic detergent (A) satisfies following equation (1): [A]/[B]≤4.5 (1) wherein [A] represents a total concentration in ppm by weight of magnesium, calcium and sodium in the lubricant composition. ### Claim 15 (depends on 4) The lubricant composition according to claim 4, wherein the lubricant composition further comprises (A2) a metallic detergent other than component (A1) as the metallic detergent (A), component (A2) comprises at least one selected from magnesium, calcium and sodium, and the amount of the metallic detergent (A) satisfies following equation (1): [A]/[B]≤4.5 (1) wherein [A] represents a total concentration in ppm by weight of magnesium, calcium and sodium in the lubricant composition. ### Claim 16 (depends on 11) The lubricant composition according to claim 11, wherein the lubricant composition further comprises (A2) a metallic detergent other than component (A1) as the metallic detergent (A), component (A2) comprises at least one selected from magnesium, calcium and sodium, and the amount of the metallic detergent (A) satisfies following equation (1): [A]/[B]≤4.5 (1) wherein [A] represents a total concentration in ppm by weight of magnesium, calcium and sodium in the lubricant composition. ### Claim 17 (depends on 12) The lubricant composition according to claim 12, wherein the lubricant composition further comprises (A2) a metallic detergent other than component (A1) as the metallic detergent (A), component (A2) comprises at least one selected from magnesium, calcium and sodium, and the amount of the metallic detergent (A) satisfies following equation (1): [A]/[B]≤4.5 (1) wherein [A] represents a total concentration in ppm by weight of magnesium, calcium and sodium in the lubricant composition. ### Claim 18 (depends on 2) The lubricant composition according to claim 2, wherein the amount of the metal salicylate (A1) satisfies following equation (2): [A1]/[B]<4.5 (2) wherein [A1] represents a total concentration ([Ca]+[Mg]) in ppm by weight of magnesium and calcium that are derived from component (A1) in the lubricant composition. ### Claim 19 (depends on 3) The lubricant composition according to claim 3, wherein the amount of the metal salicylate (A1) satisfies following equation (2): [A1]/[B]<4.5 (2) wherein [A1] represents a total concentration ([Ca]+[Mg]) in ppm by weight of magnesium and calcium that are derived from component (A1) in the lubricant composition. ### Claim 20 (depends on 4) The lubricant composition according to claim 4, wherein the amount of the metal salicylate (A1) satisfies following equation (2): [A1]/[B]<4.5 (2) wherein [A1] represents a total concentration ([Ca]+[Mg]) in ppm by weight of magnesium and calcium that are derived from component (A1) in the lubricant composition.