Abstract: A lubricating composition includes an oil of lubricating viscosity and a low-ash additive system including a low molecular weight amine with a Total Base Number of at least 150, and an N-substituted hydrocarbyl-substituted succinimide dispersant. The low-ash additive system provides the lubricating composition with a significant boost in TBN without substantially lowering the flashpoint. The composition is particularly suited to use as a marine diesel engine lubricant.
Type:
Grant
Filed:
September 5, 2017
Date of Patent:
August 30, 2022
Assignee:
The Lubrizol Corporation
Inventors:
Ewan E. Delbridge, Binbin Guo, John K. Pudelski, John-Louis DiFlavio
Abstract: The disclosed technology relates to a dispersant composition comprising the reaction product of a polyolefin acylating agent and a polyamine having a sterically hindered head group. In addition, the technology relates to lubricating compositions containing the dispersant composition and an oil of lubricating viscosity, as well as methods of employing the lubricating composition in an engine and engine oils. Lubricating oils containing the dispersants of the disclosed technology simultaneously achieves seal compatibility, wear, deposit, varnish and corrosion control while also maintaining fuel economy performance over a broad temperature range.
Type:
Grant
Filed:
November 29, 2018
Date of Patent:
August 23, 2022
Assignee:
The Lubrizol Corporation
Inventors:
Dixit Parmar, Joanne L. Jones, Daniel J. Saccomando, Nicolas Proust, Patrick E. Mosier
Abstract: The disclosed technology relates to a heat transfer system and heat transfer method employing a dielectric oleaginous heat transfer fluid. In particular, the technology relates to a dielectric oleaginous heat transfer fluid with low electrical conductivity, low flammability, and low freeze point that provides excellent peak temperature reduction in a heat transfer system, such as that for cooling a power system of an electric vehicles.
Type:
Application
Filed:
June 12, 2020
Publication date:
August 18, 2022
Applicant:
The Lubrizol Corporation
Inventors:
Amy L. Short, Alexander Sammut, Douglas T. Jayne, Ryan Ritz
Abstract: The disclosed technology relates to a lubricating composition comprising an oil of lubricating viscosity and an ashless basic amine additive selected from a N-aralkyl ?-carbonyl functional amine. The basic amine additives used in the lubricating oils of the disclosed technology impart basicity measured as total base number (TBN) without adding sulfated ash. Lubricating oils containing the basic amine additives of the disclosed technology simultaneously achieve seal compatibility, deposit, and corrosion control.
Type:
Application
Filed:
July 1, 2020
Publication date:
August 18, 2022
Applicant:
The Lubrizol Corporation
Inventors:
Daniel J. Saccomando, William R.S. Barton, Amelia Stoneley, Yanshi Zhang, Ewan E. Delbridge
Abstract: Described herein is a process, comprising: a) selecting an API Group II base stock with selected viscosity index and pour point; b) blending a base oil with the base stock, and c) adding to the base oil: i) a liquid ethylene propylene copolymer viscosity modifier that reduces a traction coefficient, and ii) an additive package, to make a driveline fluid that has a defined viscosity index and excellent shear stability. Also provided is a driveline fluid composition having the high viscosity index and excellent shear stability, comprising: a) a base oil comprising from 50 wt % to 100 wt % API Group II base stock; b) a liquid ethylene propylene copolymer viscosity modifier that reduces a traction coefficient; and c) an additive package. Further provided is a method for lubricating an axle or manual transmission by supplying the driveline fluid composition.
Type:
Grant
Filed:
July 28, 2016
Date of Patent:
August 9, 2022
Assignees:
The Lubrizol Corporation, Chevron U.S.A. Inc.
Inventors:
Hyun-Soo Hong, John Aleksonis Zakarian, Sona Sivakova, Tomoya Higuchi, Christopher Engel, Farrukh Qureshi
Abstract: A lubricant composition comprising an oil of lubricating viscosity and 0.01 to 5 percent by weight of a substantially sulfur-free alkyl phosphate amine salt, where at least 30 mole percent of the phosphorus atoms are in an alkyl pyrophosphate salt structure, exhibits good antiwear performance. In the phosphate amine salt, at least 80 mole percent of the alkyl groups are typically secondary alkyl groups of 3 to 12 carbon atoms.
Type:
Grant
Filed:
July 17, 2017
Date of Patent:
July 12, 2022
Assignee:
The Lubrizol Corporation
Inventors:
William R. S. Barton, Daniel J. Saccomando, Jamal Kassir, Paul E. Adams, Lisa Blanazs, Michael R. Sutton, Stephen J. Cook, Paul R. Vincent, Ewan E. Delbridge, Yanshi Zhang
Abstract: The disclosed technology relates to a traction fluid containing a base fluid having at least one of cedrene, cedrol, thujopsene or mixtures thereof, preferably provided from cedar oil, as well as a method of lubricating a power transmission apparatus with the traction fluid.
Type:
Grant
Filed:
January 13, 2020
Date of Patent:
July 12, 2022
Assignee:
The Lubrizol Corporation
Inventors:
Thomas S. Corrigan, Farrukh Qureshi, Paul E. Adams
Abstract: The invention provides a lubricating composition comprising a low viscosity base oil and a synergistic mixture of a functionalized ethylene-?-olefin copolymer, a poly(meth)acrylate polymer, and a metal-free anti-wear agent. The invention also provides a method of lubricating an internal combustion engine using such a lubricating composition.
Type:
Grant
Filed:
June 26, 2018
Date of Patent:
June 21, 2022
Assignee:
The Lubrizol Corporation
Inventors:
Paul R. Vincent, Timothy R. Smith, Eugene Pashkovski, Reid A. Patterson
Abstract: The invention provides a lubricating composition comprising an oil of lubricating viscosity and synergistic mixture of a functionalized ethylene-?-olefin copolymer, a poly(meth)acrylate block polymer having a substantially oil soluble block and a substantially oil insoluble block. The invention also provides a method of lubricating a mechanical device using such a lubricating composition.
Type:
Grant
Filed:
June 25, 2018
Date of Patent:
June 14, 2022
Assignee:
The Lubrizol Corporation
Inventors:
Reid A. Patterson, Timothy R. Smith, Paul S. O'Hora, Edward P. Sampler, Eugene Pashkovski, Kieran Trickett
Abstract: A lubricant composition comprising an oil of lubricating viscosity and 0.01 to 5 percent by weight of a substantially sulfur-free alkyl phosphate amine salt, where at least 30 mole percent of the phosphorus atoms are in an alkyl pyrophosphate salt structure, exhibits good antiwear performance. In the phosphate amine salt, at least 80 mole percent of the alkyl groups are typically secondary alkyl groups of 3 to 12 carbon atoms.
Type:
Grant
Filed:
October 27, 2016
Date of Patent:
June 7, 2022
Assignee:
The Lubrizol Corporation
Inventors:
Jamal Kassir, William R. S. Barton, Paul E. Adams, Lisa Blanazs
Abstract: The disclosed technology provides a method of lubricating a compression-ignition internal combustion engine with a maximum laden mass over 2,700 kg comprising supplying to the engine a lubricating composition comprising: an oil of lubricating viscosity, a 300 TBN or higher alkaline earth metal sulfonate detergent having a metal ratio of 10 to 40, an alkaline earth metal sulfonate detergent having a metal ratio of 3 to 9, and a TBN of 81 to 180 mg KOH/g, wherein the sulfonate detergents provide a total amount of sulfonate substrate of 1 wt % to 3 wt % of the lubricating composition, 0.1 to 1.2 wt % of antioxidant, wherein at least 20 wt % of the antioxidant is a phenolic antioxidant, a borated compound present in an amount to deliver 25 ppm to 300 ppm of boron, the lubricating composition has a sulfated ash content of 0.5 wt % to not more than 1.5 wt %, and the lubricating composition has a TBN of 6.5 to 15 mg KOH/g.
Abstract: There is disclosed an antifoam component for a mechanical device which includes a poly(acrylate) copolymer. The antifoam component has improved foam performance in finished fluids utilizing dibutyl hydrogen phosphite compounds, such as driveline fluids. A lubricating composition comprising a) at least one oil of lubricating viscosity; and b) an antifoam component comprising a poly(acrylate) copolymer. The poly(acrylate) copolymer, b) may include (i) from about 30 wt % up to about 99 wt % of a (meth)acrylate monomer having C1 to C4 alkyl esters of (meth)acrylic acid; and (ii) from about 1 wt % up to about 70 wt % of a fluorinated (meth)acrylate monomer.
Type:
Grant
Filed:
March 21, 2019
Date of Patent:
May 10, 2022
Assignee:
The Lubrizol Corporation
Inventors:
Sujith Perera, Kevin J. Hughes, Elizabeth A. Schiferl, David M. Nickerson, Alonzo Smith
Abstract: The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and a metal overbased detergent. The metal overbased detergent may be selected from sulfonate detergents, phenate detergents, and salicylate detergents, especially sulfonate detergents with a metal ratio of at least 5.
Type:
Application
Filed:
January 20, 2022
Publication date:
May 5, 2022
Applicant:
The Lubrizol Corporation
Inventors:
Patrick E. Mosier, Jeffry G. Dietz, Alexander Sammut
Abstract: In one embodiment, the present technology provides a surfactant composition comprising an imide compound in an optional solvent for use in a hydrocarbon base fluid to improve the emulsification of an acidizing agent in the hydrocarbon base fluid. In another embodiment, the present technology provides a method of employing an acidizing well-bore stimulation fluid containing the surfactant composition to stimulate a reservoir.
Type:
Grant
Filed:
September 1, 2017
Date of Patent:
April 26, 2022
Assignee:
The Lubrizol Corporation
Inventors:
Kern L. Smith, Nicole Shimek, Nadia M. Mojica
Abstract: The instant disclosure generally relates to lubricating compositions having an oil of lubricating viscosity and a mixed dispersant additive package. The mixed dispersant additive package can include an acylated poly(1-olefin)-based dispersant and a poly-isobutylene succinimide dispersant where the ratio of the acylated poly(1-olefin)-based dispersant to the polyisobutylene succinimide dispersant in the lubricating composition is from 3:1 to 1:3.
Abstract: A hydraulic fluid includes an oil of lubricating viscosity and at least 2 wt. % of an ester of a carboxy group-containing interpolymer comprising units derived from a vinyl aromatic monomer and units derived from a carboxylic acid monomer. The interpolymer also contains nitrogen functionality. The hydraulic fluid is at least substantially free of polyacrylates and polymethacrylates.
Type:
Grant
Filed:
April 19, 2017
Date of Patent:
March 1, 2022
Assignee:
The Lubrizol Corporation
Inventors:
Daniel J. Knapton, David Cressey, Daniel C. Visger
Abstract: The present technology is related to imide containing quaternary ammonium salts having a hydrocarbyl substituent of number average molecular weight less 300, and additive packages having such quaternary ammonium salts and improved stability.
Type:
Grant
Filed:
December 2, 2016
Date of Patent:
February 22, 2022
Assignee:
The Lubrizol Corporation
Inventors:
David C. Arters, David J. Moreton, James H. Bush, Paul R. Stevenson, Paul E. Adams
Abstract: A hydraulic lubricating oil composition is provided which contains a synergistic mixture of three phosphorous antiwear components in order to provide good thermal stability and good demulsibility to the lubricating oil composition.
Abstract: The invention provides a method of lubricating a compression-ignition internal combustion engine with a maximum laden mass over 2,700 kg comprising supplying to the engine a lubricating composition comprising: an oil of lubricating viscosity, a 300 TBN or higher alkaline earth metal sulphonate detergent having a metal ratio of 10 to 40, 0.1 wt % to 4 wt % of a borated polyisobutylene succinimide dispersant, wherein the polyisobutylene from which the borated polyisobutylene succinimide is derived has a number average molecular weight of 550 to 1150, and 0.1 wt % to 6 wt % of a polyisobutylene succinimide, wherein the polyisobutylene from which polyisobutylene succinimide is derived has a number average molecular weight of 1550 to 2500, 0 wt % to 0.2 wt % of a phenolic based detergent, wherein the total amount of soap delivered by the alkaline earth metal sulphonates (typically calcium sulphonate) is 0.
Abstract: The disclosed technology relates to corrosion- or rust-preventive coating compositions and methods of their use. The compositions comprise a rust preventative composition, optionally including a diluent, and a quaternary ammonium salt.
Type:
Grant
Filed:
April 21, 2020
Date of Patent:
January 18, 2022
Assignee:
The Lubrizol Corporation
Inventors:
Amelia Hadler, Ben Faber, Jennifer E. Clark, Britt A. Minch