Patents Examined by Frank C Campanell
-
Patent number: 7947634Abstract: A process to make a lubricant, comprising: blending together: a) about 0.001 to about 2 wt % of a mixture of amine phosphates; b) about 0.001 to about 0.5 wt % of an alkenyl succinic compound selected from the group consisting of an acid half ester, an anhydride, an acid, and mixtures thereof; c) about 0.10 to about 20 wt % of a solubility improver having an aniline point less than 20° C.; and d) about 60 to about 98.5 wt % of a lubricating base oil selected from the group consisting of an API Group II or Group III base oil having greater than 65% paraffinic chain carbons by ASTM D 3238, an API Group IV base oil, a polyinternal olefin base oil, a hydroisomerized Fischer-Tropsch wax, a Fischer-Tropsch oligomerized olefin base oil, and mixtures thereof; wherein the lubricant passes the 4 hour TORT B rust test.Type: GrantFiled: September 24, 2009Date of Patent: May 24, 2011Assignee: Chevron U.S.A. Inc.Inventor: Mark E. Okazaki
-
Patent number: 7943556Abstract: A solid lubricant and composition useful for lubricating the flanges of locomotive wheels, railcar wheels, rail tracks and in applications where it is desirable to reduce friction when metal contacts metal. The solid lubricant having from about 25% to about 70% by volume of a biopolymer polymeric carrier, about 5% to 75% percent by volume of organic and inorganic extreme pressure additives, about 0% to 20% by volume synthetic extreme pressure anti-wear liquid oil, and about 0% to 1% by volume optical brightener.Type: GrantFiled: December 5, 2005Date of Patent: May 17, 2011Inventor: Michael J. Mitrovich
-
Patent number: 7939478Abstract: The invention provides a method of lubricating a marine diesel engine, comprising supplying to said engine a marine diesel cylinder lubricant composition at a feed rate of 0.3 to less than 1.2 g/kW hr, wherein said lubricant composition has a ratio of /?(wt % overbased detergent)/?(wt % of boron from antiwear additives+wt % of phosphorus-containing antiwear additives) of greater than 12.5. The invention further provides a method capable of imparting improved cleanliness and decreased cylinder wear; and reduced deposits.Type: GrantFiled: October 13, 2006Date of Patent: May 10, 2011Assignee: The Lubrizol CorporationInventors: Alexandra Mayhew, Stephen J. Cook
-
Patent number: 7935664Abstract: A lubricating oil composition comprising oil of lubricating viscosity and an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent manufactured in the presence of an amine- or ester-based friction modifier.Type: GrantFiled: October 1, 2008Date of Patent: May 3, 2011Assignee: Infineum International LimitedInventors: Peter J. Dowding, Christopher J. Adams
-
Patent number: 7928043Abstract: A method of lubricating a marine diesel 2-stroke engine comprising: (1) monitoring performance characteristics of said engine; (2) selecting a lubricating composition to modify the performance characteristics of the engine, wherein the lubricating composition is prepared by in-situ controlled blending of at least two different fluids, said fluids comprising: (i) a first fluid comprising an additive package with one or more overbased detergents, and optionally other performance additives; (ii) a second fluid comprising an additive package with one or more neutral detergents or overbased detergents, and optionally other performance additives, with the proviso that the first fluid has a ratio of ?(wt % of overbased detergents)/?(wt % of all additives in the fluid) greater than the second fluid; and (iii) a third fluid comprising an oil of lubricating viscosity; and (3) supplying the lubricating composition of step (2) to the engine, with the proviso that the lubricating composition comprises at least one of theType: GrantFiled: October 13, 2006Date of Patent: April 19, 2011Assignee: The Lubrizol CorporationInventors: Alexandra Mayhew, Stephen J. Cook
-
Patent number: 7923421Abstract: Polyurea compounds are prepared by reacting amines and polyisoyanates in the presence of a liquid diluent in a high-pressure impingement mixing device under conditions sufficient to produce polyurea compounds having the consistency of a powder and in which diluent is dispersed.Type: GrantFiled: January 23, 2007Date of Patent: April 12, 2011Assignee: ExxonMobil Research and Engineering CompanyInventor: Mark W. Baum
-
Patent number: 7910530Abstract: A method for improving the air release rate of a Gas-to-Liquids (GTL) base stock and/or base oil by the addition to such base stock and/or base oil of a synthetic ester.Type: GrantFiled: March 18, 2008Date of Patent: March 22, 2011Assignee: ExxonMobil Research and Engineering CompanyInventor: Marc-André Poirier
-
Patent number: 7910528Abstract: There is provided a finished lubricant, comprising: a) a major amount of hydroisomerized Fischer-Tropsch wax, Fischer-Tropsch oligomerized olefins, or mixture thereof; and b) between about 0.10 and about 5 wt % of a solubility improver having an aniline point less than 10° C.; wherein the finished lubricant passes the 4 hour TORT B rust test.Type: GrantFiled: September 24, 2009Date of Patent: March 22, 2011Assignee: Chevron U.S.A. Inc.Inventor: Mark E. Okazaki
-
Patent number: 7906465Abstract: A lubricant composition comprising a detergent and a base oil comprising less than about 3% by weight of tetracycloparaffins is disclosed. Methods of making and using the composition are also disclosed.Type: GrantFiled: July 14, 2006Date of Patent: March 15, 2011Assignee: Afton Chemical Corp.Inventors: Mark T. Devlin, Tze-chi Jao
-
Patent number: 7906466Abstract: A finished lubricant having a kinematic viscosity at 40° C. between about 90 and 1700 cSt that passes the 4 hour TORT B rust test, comprising: a) greater than 65 weight percent API Group III base oil, API Group IV base oil, polyinternal olefin base oil, or mixtures thereof; and b) between about 0.10 wt % and about 5 wt % solubility improver. The solubility improver has an aniline point less than 50° C., or even lower. The finished lubricant can additionally comprise a mixture of amine phosphates.Type: GrantFiled: December 30, 2009Date of Patent: March 15, 2011Assignee: Chevron U.S.A. Inc.Inventor: Mark E. Okazaki
-
Patent number: 7906469Abstract: Lubricating oil compositions having a sulfated ash content of no more than 1.0 mass %, which contain a major amount of oil of lubricating viscosity, a minor amount of calcium salicylate detergent, an amount of a magnesium-based detergent providing the lubricating oil composition with at least 200 ppm of magnesium, an amount of a sulfur-containing molybdenum compound providing the lubricating oil composition with at least 20 ppm of molybdenum, and at least one nitrogen-containing dispersant providing the lubricating oil composition with at least 0.9 mass % nitrogen, which compositions provide improved top ring wear protection in internal combustion engines.Type: GrantFiled: November 29, 2005Date of Patent: March 15, 2011Assignee: Infineum International LimitedInventors: Stephen Arrowsmith, Matthew D. Irving
-
Patent number: 7902132Abstract: The invention relates to compositions suitable as additive packages for lubricants and other functional fluids, the composition comprising sulfur-containing extreme pressure components, phosphorus-containing anti-wear additives, a triazole-containing species. A preferred use is in industrial gear oils. In embodiments, enhance protection in the areas of bearing wear and micropitting are obtained.Type: GrantFiled: December 4, 2009Date of Patent: March 8, 2011Assignee: The Lubrizol CorporationInventors: Shi-Ming Wu, William T. Sullivan, Ellen Bernice Brandes
-
Patent number: 7902133Abstract: A lubricant composition comprising a dispersant and a base oil comprising less than about 3% by weight of tetracycloparaffins is disclosed. Methods of making and using the lubricant composition are also disclosed.Type: GrantFiled: July 14, 2006Date of Patent: March 8, 2011Assignee: Afton Chemical CorporationInventors: Mark T. Devlin, Tze-chi Jao
-
Patent number: 7902130Abstract: The present invention provides a composition comprising the product prepared by hearing together: (a) a dispersant; and (b) a 1,3-dicarboxylic acid or 1,4-dicarboxylic acid of an aromatic compound, or a reactive equivalent thereof; and at least one of: (c) 2,5-dimercapto-1,3,4-thiadiazole or a hydrocarbyl-substituted 2,5-dimercapto-1,3,4-thiadiazole, or an oligomer thereof; (d) a borating agent; and (e) a phosphorus acid compound, or a reactive equivalent thereof, said heating being sufficient to provide a reaction product of (a), (b), and (c), (d), or (e), which is soluble in an oil of lubricating viscosity. The invention further provides a use for the composition.Type: GrantFiled: February 8, 2006Date of Patent: March 8, 2011Assignee: The Lubrizol CorporationInventors: Charles K. Baumanis, Mark R. Baker
-
Patent number: 7879775Abstract: A lubricant composition comprising a phosphorus-containing compound and a base oil comprising less than about 3% by weight of tetracycloparaffins is disclosed. Methods of making and using the lubricant composition are also disclosed.Type: GrantFiled: July 14, 2006Date of Patent: February 1, 2011Assignee: Afton Chemical CorporationInventors: Mark T. Devlin, Tze-chi Jao, John T. Loper, Roger M. Sheets, Gregory H. Guinther
-
Patent number: 7875579Abstract: An antioxidant lubricant composition has at least 50 wt % of a lubricating base oil and an oil-soluble metal compound providing between 1 and 2,000 parts per million of metal to the lubricant composition, the metal compound being chosen from the group consisting of molybdenum, tungsten titanium and boron compounds, and an oil-soluble hindered amine providing between about 0.001 and about 2 wt % of oil-soluble hindered amine to the lubricant composition, and optionally, an oil-soluble diarylamine providing between 0.001 and about 2 wt % of oil-soluble diarylamine to the lubricant composition.Type: GrantFiled: March 3, 2008Date of Patent: January 25, 2011Assignee: R.T. Vanderbilt Company, Inc.Inventors: Kevin J. Chase, John M. DeMassa, Brian W. Stunkel, Glenn A. Mazzamaro, Steven G. Donnelly
-
Patent number: 7875581Abstract: A lubricant composition for a resin conveyor, comprising specific (A) a nonionic surfactant and (B) water and, if necessary, (C) (a) a cationic surfactant and/or (b) an amphoteric surfactant, and a method for using same. Using a specific nonionic surfactant as the main component provides excellent washing ability, lubricating ability, and stability in storage. In particular, because excellent ability to prevent stress cracking is attained, the lubricant composition for a resin conveyor can be advantageously employed for transporting PET containers. Furthermore, adding a specific cationic surfactant makes it possible to obtain a lubricant composition for a resin conveyor also demonstrating an effect of inhibiting microorganism (fungi) generation, without degrading the various original performances (effects). Furthermore, a preferred method for using those lubricant compositions for resin conveyors is also provided.Type: GrantFiled: October 26, 2006Date of Patent: January 25, 2011Assignee: Diversey, Inc.Inventors: Tsunenori Chiba, Masaki Yamada, Wataru Ebine
-
Patent number: 7875576Abstract: Disclosed herein is a lubricating oil composition comprising a) major amount of a base oil of lubricating viscosity; b) from about 0.1 to 10 wt % of an overbased alkaline earth metal alkyl aryl sulfonate detergent having a total base number (TBN) of about 25 to 500; c) from about 0.02 to 10 wt % of a oxymolybdenum-containing complex of a nitrogen-containing compound; d) from about 0.1 to 5 wt % of a friction modifier; and e) from about 0.2 to 10 wt % of an antioxidant selected from the group consisting of a diphenylamine type, a sulfurized ester-containing compound and mixtures thereof; wherein the total concentration of the oxymolybdenum-containing complex and antioxidant must be at least 1.3 wt %, based on the total weight of the lubricating oil composition and wherein the phosphorus content of the total lubricating oil composition is 0.08 wt % or less, based on the total weight of the lubricating oil composition.Type: GrantFiled: July 29, 2004Date of Patent: January 25, 2011Assignee: Chevron Oronite Company LLCInventor: Alexander B. Boffa
-
Patent number: 7871966Abstract: The present invention provides a lubricating oil composition, which is capable to maintain sufficient low-friction (i.e. fuel saving performance) even when the lubricating oil is contaminated with soot and metal abrasion powder, which is excellent in durability with regard to anti-wear property and detergency, as well as oxidation stability, and which is capable to lower the ash content and to sufficiently maintain the performance of exhaust-gas after-treatment device for a long term. The lubricating oil composition comprises a lubricant base oil containing a base oil (X) of which % CP is 70 or more, % CA is 1 or less, viscosity index is 115 or more, and CCS viscosity at ?35° C. is 3000 mPa·s or less, wherein the lubricant base oil, to total mass of the composition, contains following components (A)˜(D): (A) 0.01˜10 mass % of ashless friction modifier; (B) 0.01˜0.2 mass % of phosphorus-containing anti-wear agent as phosphorous content; (C) 0.01˜1 mass % of metallic detergent as metal content; and (D) 0.01˜0.Type: GrantFiled: March 18, 2008Date of Patent: January 18, 2011Assignee: Nippon Oil CorporationInventor: Shigeki Matsui
-
Patent number: 7871967Abstract: The present invention is generally directed to diester-based lubricant compositions. The present invention is also directed to methods of making these and other similar lubricant compositions. In some embodiments, the methods for making such diester-based lubricants utilize a biomass precursor and/or low value Fischer-Tropsch (FT) olefins and/or alcohols so as to produce high value diester-based lubricants. In some embodiments, such diester-based lubricants are derived from FT olefins and fatty acids. The fatty acids can be from a bio-based source (i.e., biomass, renewable source) or can be derived from FT alcohols via oxidation.Type: GrantFiled: February 12, 2007Date of Patent: January 18, 2011Assignee: Chevron U.S.A. Inc.Inventors: Stephen Joseph Miller, Saleh A. Elomari