Patents Assigned to Infineum International Limited
  • LUBRICATING OIL COMPOSITION
    Publication number: 20150034034
    Abstract: An automotive lubricating oil composition for an internal combustion engine comprises (A) an oil of lubricating viscosity in a major amount; and (B) oil-soluble additive components in respective minor amounts comprising (B1) a zinc dihydrocarbyl dithiophosphate additive; and (B2) an alkylenebis(dihydrocarbyldithiocarbamate) where at least one of the hydrocarbyl groups in an aryl group, the composition having not greater than 1600 ppm by mass of phosphorus, expressed as phosphorus atom.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 5, 2015
    Applicant: Infineum International Limited
    Inventors: Richard D. Bertram, Peter J. Dowding, Joseph P. Hartley, Peter D. Watts
  • MARINE ENGINE LUBRICATION
    Publication number: 20150018258
    Abstract: A detergent system that includes (i) an overbased C20-28 alkyl-substituted hydroxybenzoate Ca salt of TBN less than 250 and (ii) an overbased C14-18 alkyl-substituted hydroxybenzoate Ca salt of TBN less than 250, the wt % Ca ratio of (ii) to (i) being more than one, is used in a trunk piston marine lubricant to improve its asphaltene dispersancy when lubricating a medium-speed compression-ignited marine engine fuelled by a heavy fuel oil.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Applicant: Infineum International Limited
    Inventors: Laura Gregory, Ben Luke Short
  • Marine Engine Lubrication
    Publication number: 20140326205
    Abstract: Trunk piston marine engine crackcase lubrication is effected by a composition made by blending minor amounts of (A) a metal dithiophosphoric acid salt additive component comprising 50 mole % or more of a zinc di (C6 primary alkyl) dithiophosphate, and (B) an overbased metal detergent additive component, with (C) a major amount of an oil of lubricating viscosity.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 6, 2014
    Applicant: INFINEUM INTERNATIONAL LIMITED
    Inventor: John H. Smythe
  • Method for lubricating diamond-like carbon coated surfaces
    Patent number: 8846590
    Abstract: A method of lubricating a surface coated with a diamond-like carbon film or coating which comprises supplying to said surface a lubricating oil composition comprising an oil of lubricating viscosity and an effective friction reducing amount of an oil soluble organo-molybdenum compound.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: September 30, 2014
    Assignee: Infineum International Limited
    Inventor: Rebecca Castle
  • POLYMERIZATION INITIATING SYSTEM AND METHOD TO PRODUCE HIGHLY REACTIVE OLEFIN FUNCTIONAL POLYMERS
    Publication number: 20140275453
    Abstract: A method for producing highly reactive olefin polymers wherein at least 50 mol. % of the polymer chains have terminal double bonds, and a novel polymerization initiating system for accomplishing same.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicants: INFINEUM INTERNATIONAL LIMITED, UNIVERSITY OF MASSACHUSETTS
    Inventors: University of Massachusetts, Infineum International Limited
  • MARINE ENGINE LUBRICATION
    Publication number: 20140221261
    Abstract: Lubricant additives comprising as overbased metal hydrocarbyl-substituted hydroxybenzoate detergent dispersed in diluent and a polyalkenyl-substituted carboxlic acid anhydride dispersed in a diluent oil containing 50 mass % or more of a basestock containing greater than or equal to 90% saturates and less than or equal to 0.03% sulphur or a mixture thereof are blended, in minor amounts, with a high saturates content oil of lubricating viscosity, in a major amount, to give trunk piston marine engine lubricating oil composition for a medium-speed four-stroke compression-ignited marine engine.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 7, 2014
    Applicant: Infineum International Limited
    Inventors: James C. Dodd, Joshua L. Bradley-Shaw
  • Lubricating oil compositions
    Patent number: 8759262
    Abstract: A lubricating oil composition for internal combustion engines, particularly heavy duty diesel (HDD) engines, having reduced phosphorus, sulfur and sulfated ash contents that provide excellent piston cleanliness performance and contain an amount of phenate detergent that introduces a relatively large amount of phenate soap into the lubricating oil composition.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: June 24, 2014
    Assignee: Infineum International Limited
    Inventors: Matthew D. Irving, Stephen Arrowsmith
  • Marine Engine Lubrication
    Publication number: 20140165943
    Abstract: Trunk piston marine engine lubrication comprising a major amount of (A) an oil of lubricating viscosity that comprises an oil-soluble ester basestock, or that comprises greater than 0.1 to less than 90 mass % of an oil-soluble ester basestock and, as 50 mass % or more of the remainder of the oil of lubricating viscosity, a high saturates basestock; (B) a minor amount of a metal alkyl salicylate detergent; and (C) greater than 0.1 to less than 10 mass %, of an oil-soluble polyalkenyl-substituted carboxylic acid anhydride, wherein the or at least one polyalkenyl group is derived from a polyalkene having a number average molecular weight of from 200 to 3,000. Asphaltene precipitation in the lubricant composition, caused by the presence of contaminant heavy fuel oil, is prevented or inhibited.
    Type: Application
    Filed: November 21, 2013
    Publication date: June 19, 2014
    Applicant: Infineum International Limited
    Inventors: James C. Dodd, Joshua L. Bradley-Shaw
  • EGR equipped diesel engines and lubricating oil compositions
    Patent number: 8741824
    Abstract: Soot induced kinematic viscosity increase of lubricating oil compositions for diesel engines, particularly heavy duty diesel engines, equipped with EGR systems, particularly EGR systems operating in a condensing mode, can be ameliorated by addition of a phenylenediamine compound.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: June 3, 2014
    Assignee: Infineum International Limited
    Inventors: Dennis L. Malandro, Michael L. Alessi
  • POLYMERS
    Publication number: 20140144070
    Abstract: The present invention is a polymer having structural units, units of formula I, units of formula II and units of either formula IIIa or formula IIIb: The polymer improves the low-temperature properties of fuel oils from petroleum sources and especially from vegetable or animal sources.
    Type: Application
    Filed: January 31, 2014
    Publication date: May 29, 2014
    Applicant: Infineum International Limited
    Inventors: Carl Waterson, Christopher J. Booth
  • Phenate Detergent Preparation
    Publication number: 20140130758
    Abstract: A sulphurised calcium phenate detergent prepared by the following stages: i) reacting one or more alkyl phenol materials comprising hydrogenated distilled cashew nut shell liquid with first defined amounts of a calcium salt and of a promoter, and with sulphur, in the presence of a process solvent; and (ii) reacting the product of stage (i) with second defined amounts of the calcium salt and of the promoter and carbonating the product; the total amount of calcium salt and of promoter being such as to provide a sulphurised phenate of desired TBN, and the first amount of each of the calcium salt and of the promoter in stage (i), relative to its total amount in the method, being less than 50, expressed as a molar percentage. The sulphurised calcium phenate has a kinematic viscosity at 100° C. of greater than 750 and less than 1200 cSt.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 15, 2014
    Applicant: Infineum International Limited
    Inventors: Adam P. Marsh, Dirk Schwaebisch, Oliver J. Delamore
  • MARINE ENGINE LUBRICATION
    Publication number: 20140128301
    Abstract: Two-stroke cross-head marine compression-ignited engine system lubrication is effected by a composition comprising a major amount of an oil of lubricating viscosity containing at least 50 mass % of a basestock containing greater than or equal to 90% saturates and less than or equal to 0.03% sulphur or a mixture thereof, and respective minor amounts of an oil-soluble overbased metal alkyl salicylate detergent and an oil-soluble polyalkenyl-substituted carboxylic acid anhydride or an oil-soluble alkylated phenol. The presence of the anhydride or the phenol improves asphaltene dispersency in the lubricant.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 8, 2014
    Applicant: Infineum International Limited
    Inventors: Robert J. Glass, Helen Bishop, Agata Checinska
  • Polymers
    Patent number: 8710168
    Abstract: The present invention is a polymer having structural units, units of formula I, units of formula II and units of either formula IIIa or formula IIIb: The polymer improves the low-temperature properties of fuel oils from petroleum sources and especially from vegetable or animal sources.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: April 29, 2014
    Assignee: Infineum International Limited
    Inventors: Carl Waterson, Christopher J. Booth
  • Lubricating oil compositions
    Patent number: 8709988
    Abstract: 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 at least 200 ppm of magnesium, and a basic, low molecular weight, nitrogen-containing dispersant, which compositions provide improved top ring wear protection in internal combustion engines.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: April 29, 2014
    Assignee: Infineum International Limited
    Inventors: Stephen Arrowsmith, Matthew D. Irving
  • Lubrication and lubricating oil compositions
    Patent number: 8703682
    Abstract: Tetra-alkylated phenylenediamine compounds useful as ashless TBN sources for lubricating oil compositions that are compatible with fluoroelastomeric engine seal materials and meet copper corrosion requirements, and lubricating oil compositions containing such phenylenediamine compounds.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: April 22, 2014
    Assignee: Infineum International Limited
    Inventors: Joseph P. Hartley, Robert G. Rowland, Jie Cheng, Jacob Emert, Joseph Stieber
  • Method of improving the compatibility of an overbased detergent with other additives in a lubricating oil composition
    Patent number: 8703673
    Abstract: A method of improving the compatibility of an overbased detergent with other additives in a lubricating oil composition. The method includes the step of the using a detergent have a degree of carbonation of greater than 85%.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: April 22, 2014
    Assignee: Infineum International Limited
    Inventor: Philip Skinner
  • Marine engine lubrication
    Patent number: 8703676
    Abstract: Trunk piston marine engine lubrication, when the engine is fueled by heavy fuel oil, is effected by a composition comprising a major amount of an oil of lubricating viscosity containing at least 50 mass % of a Group II basestock, and respective minor amounts of an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent other than such a detergent having a basicity index of less than two and a degree of carbonation of 80% or greater and 5 to 500 mass %, based on the mass of the detergent, of an oil-soluble alkyl-substituted phenol other than a hindered phenol. Asphaltene precipitation in the lubricant, caused by the presence of contaminant heavy fuel oil, is prevented or inhibited.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: April 22, 2014
    Assignee: Infineum International Limited
    Inventors: Richard D. Bertram, Peter J. Dowding, Joseph P. Hartley, Peter D. Watts
  • Power transmission fluids with improved friction characteristics
    Patent number: 8697617
    Abstract: Reaction products of maleic and/or succinic acids or anhydrides and primary aliphatic amines are disclosed as effective in reducing the static friction in power transmission fluids.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: April 15, 2014
    Assignee: Infineum International Limited
    Inventors: Raymond F. Watts, Keith R. Gorda
  • Fuel oils
    Patent number: 8690969
    Abstract: The use of an additive composition to improve the conductivity of a fuel oil. The additive composition comprises a polymeric condensation product formed by the reaction of an aliphatic aldehyde or ketone, or a reactive equivalent, with at least one ester of p-hydroxybenzoic acid.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: April 8, 2014
    Assignee: Infineum International Limited
    Inventors: Andrew C. Sutkowski, Graham Jackson
  • LUBRICATING OIL COMPOSITION
    Publication number: 20140034003
    Abstract: The use, in the lubrication of a spark-ignited or compression-ignited internal combustion engine which is fuelled with a biofuel, of a minor amount of an oil-soluble or oil-dispersible additive component (B), as defined herein, in combination with a minor amount of an oil-soluble or oil-dispersible additive component (C), as defined herein, in a lubricating oil composition, to reduce and/or inhibit the corrosion of the metallic engine components, wherein the lubricating oil composition becomes contaminated with the biofuel during operation of the engine.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 6, 2014
    Applicant: Infineum International Limited
    Inventors: Marco Corradi, Roberta Bomparola