Patents by Inventor Rolfe J. Hartley

Rolfe J. Hartley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8530397
    Abstract: Compositions in the form of lubricating oil compositions, greases, fuels or functional fluids containing, in the form of Michael adducts, N-substituted phenylenediamine additives in which at least one of the substituents on the N atoms carries a carbonyl group that is connected to an alkyl, alkoxyalkyl, or alkylthioalkyl group either directly or via an oxygen atom.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: September 10, 2013
    Assignees: Infineum International Limited, Chemtura Corporation
    Inventors: Tushar Kanti Bera, Rolfe J. Hartley, Jacob Emert, Jie Cheng, Theodore E. Nalesnik, Robert G. Rowland
  • Patent number: 8188021
    Abstract: A lubricating oil composition formulated with a viscosity index (VI) improver composition including a combination of an ethylene ?-olefin copolymer having no greater than 66 mass % of units derived from ethylene, and a linear diblock copolymer including at least one block derived primarily from a vinyl aromatic hydrocarbon monomer, and at least one block derived primarily from diene monomer.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: May 29, 2012
    Assignee: Infineum International Limited
    Inventors: Chin Chu, Rolfe J. Hartley, Stuart Briggs, Jacob Emert, Jai G. Bansal
  • Publication number: 20100256030
    Abstract: A lubricating oil composition containing a combination of oil of lubricating viscosity, one or more block copolymers of hydrogenated poly(monovinyl aromatic hydrocarbon) and poly(conjugated diene) as a viscosity modifier, and one or more one or more optionally substituted bridged hydrocarbyl phenol condensates, or metal salts thereof, as a detergent.
    Type: Application
    Filed: April 6, 2009
    Publication date: October 7, 2010
    Inventors: Rolfe J. Hartley, Peter D. Watts
  • Publication number: 20090291871
    Abstract: A lubricating oil composition formulated with a viscosity index (VI) improver composition including a combination of an ethylene ?-olefin copolymer having no greater than 66 mass % of units derived from ethylene, and a linear diblock copolymer including at least one block derived primarily from a vinyl aromatic hydrocarbon monomer, and at least one block derived primarily from diene monomer.
    Type: Application
    Filed: February 5, 2009
    Publication date: November 26, 2009
    Inventors: Chin Chu, Rolfe J. Hartley, Stuart Briggs, Jacob Emert, Jai G. Bansal
  • Publication number: 20090156448
    Abstract: Compositions in the form of lubricating oil compositions, greases, fuels or functional fluids containing, in the form of Michael adducts, N-substituted phenylenediamine additives in which at least one of the substituents on the N atoms carries a carbonyl group that is connected to an alkyl, alkoxyalkyl, or alkylthioalkyl group either directly or via an oxygen atom.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 18, 2009
    Inventors: Tushar kanti Bera, Rolfe J. Hartley, Jacob Emert, Jie Cheng, Theodore E. Nalesnik, Robert G. Rowland
  • Patent number: 7485603
    Abstract: Linked aromatic compounds found to act as potent soot dispersants in lubricating oil compositions; lubricating oil compositions containing such soot dispersants and precursor compounds from which the soot dispersants are derived.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: February 3, 2009
    Assignee: Infineum International Limited
    Inventors: Tushar K. Bera, Nancy Z. Diggs, Rolfe J. Hartley, Jacob Emert, Michael L. Alessi, Jun Hua
  • Patent number: 7022653
    Abstract: A lubricating oil composition which exhibits improved fuel economy and fuel economy retention which contains a mono-, di- or triester of a tertiary hydroxyl amine and a fatty acid as a friction modifying fuel economy additive.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: April 4, 2006
    Assignee: Infineum International Limited
    Inventors: Rolfe J. Hartley, Michael D. Hoey, Steve Harris
  • Patent number: 6852679
    Abstract: A lubricating oil composition having less than 0.2 wt. % sulfur, less than 50 ppm chlorine, less than 50 ppm phosphorus, a NOACK volatility of 15 wt. % or less comprising an organo-molybdenum compound, an overbased calcium or magnesium salicylate, a dispersant and a supplemental antioxidant.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: February 8, 2005
    Assignee: Infineum International Ltd.
    Inventors: Rolfe J. Hartley, Malcolm Waddoups, Ricardo A. Bloch, Roger W. Glyde, Robert Robson
  • Publication number: 20040180798
    Abstract: A lubricating oil composition which exhibits improved fuel economy and fuel economy retention which contains a mono-, di- or triester of a tertiary hydroxyl amine and a fatty acid as a friction modifying fuel economy additive.
    Type: Application
    Filed: March 10, 2003
    Publication date: September 16, 2004
    Inventors: Rolfe J. Hartley, Michael D. Hoey, Steve Harris
  • Publication number: 20040147415
    Abstract: A lubricant composition comprising a major amount of an oil of lubricating viscosity and a minor amount of:
    Type: Application
    Filed: September 30, 2003
    Publication date: July 29, 2004
    Inventors: Alisdair J. Brown, Roger W. Glyde, Rebecca Castle, Jane Gilmore, Simon S. M. Chung, Rolfe J. Hartley
  • Publication number: 20040121918
    Abstract: The lubricating compositions of the present invention are designed for use in a four stroke outboard marine engine and contain an oil of lubricating viscosity, an ashless dispersant, a metal detergent, a rust inhibitor system comprising a combination of certain rust inhibitors with an ethoxylated alkyl phenol, a relatively high amount of ZDDP, and an amount of a molybdenum compound sufficient to provide the composition with 15-1,000 ppm by mass of molybdenum. An amount of about 15 ppm to 1,000 ppm by mass of molybdenum from a molybdenum compound has been found to be effective as an antiwear agent in combination with the high levels of ZDDP.
    Type: Application
    Filed: September 8, 2003
    Publication date: June 24, 2004
    Inventors: Salvatore Rea, Malcolm Waddoups, Rolfe J. Hartley, Ricardo A. Bloch, Michael D. Hoey, George C. L'Heureux
  • Publication number: 20040087452
    Abstract: Lubricating oil compositions containing a major amount of oil of lubricating viscosity, an oil soluble molybdenum compound in an amount providing the composition with from 0.001 to 0.1 mass % molybdenum, an oil soluble copper antioxidant in an amount providing the composition with from 0.001 to 0.02 mass % copper to said composition, and an amount of metal hydrocarbyl dithiophosphate providing the composition with from 100 to 550 ppm phosphorus.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Inventors: Joe R. Noles, Wangkan Lin, Rolfe J. Hartley
  • Patent number: 6723685
    Abstract: A lubricating oil composition comprising a) an oil of lubricating viscosity having a viscosity index of at least 95; b) at least one calcium detergent; c) at least one oil soluble molybdenum compound; d) at least one organic ashless nitrogen-free friction modifier; and e) at least one metal dihydrocarbyldithiophosphate compound, the composition having a Noack volatility of about 15 wt. % or less, from 0.05 to 0.6 wt. % calcium from the calcium detergent, molybdenum in an amount of at least 10 ppm from the molybdenum compound, and phosphorus from the metal dihydrocarbyldithiophosphate compound in an amount up to about 0.1 wt. %.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: April 20, 2004
    Assignee: Infineum International Ltd.
    Inventors: Rolfe J. Hartley, Malcolm Waddoups
  • Patent number: 6642188
    Abstract: The lubricating compositions of the present invention are designed for use in a four stroke outboard marine engine and contain an oil of lubricating viscosity, an ashless dispersant, a metal detergent, a rust inhibitor, a relatively high amount of ZDDP, and an amount of a molybdenum compound sufficient to provide the composition with 15-1,000 ppm by mass of molybdenum. An amount of about 15 ppm to 1,000 ppm by mass of molybdenum from a molybdenum compound has been found to be effective as an antiwear agent in combination with the high levels of ZDDP.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: November 4, 2003
    Assignee: Infineum International Ltd.
    Inventors: Rolfe J. Hartley, Salvatore Rea, Malcolm Waddoups
  • Publication number: 20030199399
    Abstract: A lubricating oil composition comprising a) an oil of lubricating viscosity having a viscosity index of at least 95; b) at least one calcium detergent; c) at least one oil soluble molybdenum compound; d) at least one organic ashless nitrogen-free friction modifier; and e) at least one metal dihydrocarbyldithiophosphate compound, the composition having a Noack volatility of about 15 wt. % or less, from 0.05 to 0.6 wt. % calcium from the calcium detergent, molybdenum in an amount of at least 10 ppm from the molybdenum compound, and phosphorus from the metal dihydrocarbyldithiophosphate compound in an amount up to about 0.1 wt. %.
    Type: Application
    Filed: April 5, 2002
    Publication date: October 23, 2003
    Inventors: Rolfe J. Hartley, Malcolm Waddoups
  • Publication number: 20030176297
    Abstract: A lubricating oil composition having less than 0.2 wt. % sulfur, less than 50 ppm chlorine, less than 50 ppm phosphorus, a NOACK volatility of 15 wt. % or less comprising an organo-molybdenum compound, an overbased calcium or magnesium salicylate, a dispersant and a supplemental antioxidant.
    Type: Application
    Filed: February 20, 2002
    Publication date: September 18, 2003
    Inventors: Rolfe J. Hartley, Malcolm Waddoups, Ricardo A. Bloch, Roger W. Glyde, Robert Robson
  • Patent number: 6525004
    Abstract: There are disclosed novel reaction products of a borated hydrocarbyl succinimide dispersant and a phosphorus compound selected from the group consisting of (i) zinc dialkyldithiophosphates and (ii) amine salts of acid phosphates which are highly effective combustion improver additives for use in two-cycle and small engine four-cycle lubricating oils.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: February 25, 2003
    Assignee: Infineum International Inc.
    Inventors: Rolfe J. Hartley, Salvatore Rea, William H. Stover
  • Publication number: 20030027727
    Abstract: There are disclosed novel reaction products of a borated hydrocarbyl succinimide dispersant and phosphate or phosphite compounds which are highly effective combustion improver additives for use in two-cycle and small engine four-cycle lubricating oils.
    Type: Application
    Filed: May 1, 2001
    Publication date: February 6, 2003
    Inventors: Rolfe J. Hartley, Salvatore Rea, William H. Stover
  • Patent number: 6500786
    Abstract: Lubricating oil compositions exhibititing improved low temperature valve train wear performance with a lowered phosphorus content, which contain a reduced amount of a metal hydrocarbyl dithiophosphate, a molybdenum compound, a metal-free friction modifier and a phosphorus-free antioxidant.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: December 31, 2002
    Assignee: Infineum International Ltd.
    Inventors: Rolfe J. Hartley, Malcolm Waddoups
  • Patent number: 6498129
    Abstract: A two-cycle oil is disclosed comprising a polyisobutylene amine, a dispersant, a polybutene polymer, solvent and lubricating oil which exhibits improved performance.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: December 24, 2002
    Assignee: Exxon Chemical Patents INC.
    Inventors: Emil J. Meny, Rolfe J. Hartley