Patents by Inventor Thomas J. Karol

Thomas J. Karol 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: 8507417
    Abstract: Disclosed are sulfur and phosphorous free, borated organomolybdenum compositions containing borated alcohols. These compositions can be formulated with ashless antioxidants and low levels of phosphorous containing antiwear compounds to provide improved lubricating compositions.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: August 13, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: William H. Buck, Douglas E. Deckman, L. Oscar Farng, Andrew G. Horodsky, Marcia G. Rogers, Thomas J. Karol
  • Patent number: 7902403
    Abstract: The present invention relates to oligomeric or polymer dithiophosphate di- or poly-sulfides and their utility in rubbers. Another aspect of the invention is a method for making oligomeric or polymeric dithiophosphates by reacting phosphorous pentasulfide with a di- or polyol and a mono alcohol to produce a dithiophosphoric acid, and then oxidizing the dithiophosphoric acid with an oxidizing agent to produce an oligomeric or polymeric dithiophosphate.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: March 8, 2011
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Ronald J. Tepper
  • Patent number: 7897549
    Abstract: An additive for imparting antiwear properties to a lubricant composition is based on a combination of (1) an organo borate ester composition and (2) one or more sulfur- or phosphorus-containing compounds or a non-sulfur molybdenum compound. The sulfur- or phosphorus-containing compounds are dithiocarbamate, bisdithiocarbamate, 1,3,4-diathiazole, phosphorodithioate, phosphorodithioate esters, and the molybdenum compound is prepared by reacting (a) about 1.0 mole of fatty oil having 12 or more carbon atoms, (b) about 1.0 to 2.5 moles diethanolamine and (c) a molybdenum source.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: March 1, 2011
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Steven G. Donnelly
  • Patent number: 7763744
    Abstract: The invention relates to a novel asymmetrical, secondary dialkylamine-based molybdenum dithiocarbamate with improved friction reducing performance, viscosity and solubility, and lubricating compositions containing the same. The compounds are produced from asymmetrical dialkylamine of the formula R1-NH—R2 where R1 and R2 are different, and are independently selected from alkyl groups C3 to C19. In a preferred embodiment, R3 and R4 are different and are independently selected from alkyl groups C3 to C19.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: July 27, 2010
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventors: Robert J. Tynik, Steven G. Donnelly, Thomas J. Karol
  • Patent number: 7598211
    Abstract: An additive for imparting antiwear properties to a lubricant composition is based on a combination of (1) an organo borate ester composition and (2) one or more sulfur- or phosphorus-containing compounds or a non-sulfur molybdenum compound. The sulfur- or phosphorus-containing compounds are dithiocarbamate, bisdithiocarbamate, 1,3,4-diathiazole, phosphorodithioate, phosphorodithioate esters, and the molybdenum compound is prepared by reacting (a) about 1.0 mole of fatty oil having 12 or more carbon atoms, (b) about 1.0 to 2.5 moles diethanolamine and (c) a molybdenum source.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: October 6, 2009
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Steven G. Donnelly
  • Publication number: 20080261838
    Abstract: An additive for imparting antiwear properties to a lubricant composition is based on a combination of (1) an organo borate ester composition and (2) one or more sulfur- or phosphorus-containing compounds or a non-sulfur molybdenum compound. The sulfur- or phosphorus-containing compounds are dithiocarbamate, bisdithiocarbamate, 1,3,4-diathiazole, phosphorodithioate, phosphorodithioate esters, and the molybdenum compound is prepared by reacting (a) about 1.0 mole of fatty oil having 12 or more carbon atoms, (b) about 1.0 to 2.5 moles diethanolamine and (c) a molybdenum source.
    Type: Application
    Filed: March 24, 2008
    Publication date: October 23, 2008
    Applicant: R.T. VANDERBILT COMPANY, INC.
    Inventors: Thomas J. Karol, Steven G. Donnelly
  • Publication number: 20080183018
    Abstract: The present invention relates to oligomeric or polymer dithiophosphate di- or poly-sulfides and their utility in rubbers. Another aspect of the invention is a method for making oligomeric or polymeric dithiophosphates by reacting phosphorous pentasulfide with a di- or polyol and a mono alcohol to produce a dithiophosphoric acid, and then oxidizing the dithiophosphoric acid with an oxidizing agent to produce an oligomeric or polymeric dithiophosphate.
    Type: Application
    Filed: January 31, 2008
    Publication date: July 31, 2008
    Applicant: R.T. VANDERBILT COMPANY, INC.
    Inventors: Thomas J. Karol, Ronald J. Tepper
  • Patent number: 7041825
    Abstract: The present invention relates to 1,3,4-thiadiazole reaction products useful as accelerators and/or curing agents for halogenated polymers in rubber vulcanization processes, and to halogenated polymer compositions containing the thiadiazole derivatives, as well as a method of preparing the same. The additive is the reaction product of a 1,3,4-thiadiazole compound and a dithiocarbamic acid or an amine, or an isomer thereof.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: May 9, 2006
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Francis S. Cheng, Ronald J. Tepper
  • Patent number: 6806241
    Abstract: Disclosed are antioxidant compositions comprising of: (1) an organomolybdenum compound; (2) an alkylated diphenylamine; and (3) a sulfur compound selected from the group consisting of: (a) thiadiazole; (b) dithiocarbamate; and (c) mixtures of (a) and (b).
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: October 19, 2004
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Steven G. Donnelly, Ronald J. Hiza
  • Publication number: 20040176504
    Abstract: The present invention relates to 1,3,4-thiadiazole reaction products useful as accelerators and/or curing agents for halogenated polymers in rubber vulcanization processes, and to halogenated polymer compositions containing the thiadiazole derivatives, as well as a method of preparing the same.
    Type: Application
    Filed: February 11, 2004
    Publication date: September 9, 2004
    Inventors: Thomas J. Karol, Francis S. Cheng, Ronald J. Tepper
  • Publication number: 20040138073
    Abstract: An additive for imparting antiwear properties to a lubricant composition is based on a combination of (1) an organo borate ester composition and (2) one or more sulfur- or phosphorus-containing compounds or a non-sulfur molybdenum compound. The sulfur- or phosphorus-containing compounds are dithiocarbamate, bisdithiocarbamate, 1,3,4-diathiazole, phosphorodithioate, phosphorodithioate esters, and the molybdenum compound is prepared by reacting (a) about 1.0 mole of fatty oil having 12 or more carbon atoms, (b) about 1.0 to 2.5 moles diethanolamine and (c) a molybdenum source.
    Type: Application
    Filed: October 2, 2003
    Publication date: July 15, 2004
    Applicant: R.T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Steven G. Donnelly
  • Patent number: 6743759
    Abstract: This invention relates to improved antioxidant antiwear/extreme pressure compositions consisting of (a) methylenebis(di-n-butyldithiocarbamate) and (b) a diphenylamine derivative of tolutriazole or benzotriazole wherein the (a):(b) mass precent ratio ranges from above about 4:1 to about 50:1 and lubricating compositions containing same.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: June 1, 2004
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventors: Brian W. Stunkel, Thomas J. Karol, Steven G. Donnelly
  • Publication number: 20040063820
    Abstract: Additives including dithiocarbamyl derivatives of 2,5-dimercapto-1,3,4-thiadiazole (DMTD) useful as curing agents and accelerators. Curable polymer compositions including at least one halogenated polymer and at least one additive including the dithiocarbamyl DMTD derivatives. A method is also disclosed for preparing a cured polymer by admixing at least one halogenated polymer with at least one additive including the dithiocarbamyl DMTD derivatives and subsequently curing the composition.
    Type: Application
    Filed: July 11, 2003
    Publication date: April 1, 2004
    Applicant: R.T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Francis S. Cheng
  • Patent number: 6635696
    Abstract: Additives including dithiocarbamyl derivatives of 2,5-dimercapto-1,3,4-thiadiazole (DMTD) useful as curing agents and accelerators. Curable polymer compositions including at least one halogenated polymer and at least one additive including the dithiocarbamyl DMTD derivatives. A method is also disclosed for preparing a cured polymer by admixing at least one halogenated polymer with at least one additive including the dithiocarbamyl DMTD derivatives and subsequently curing the composition.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: October 21, 2003
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Francis S. Cheng
  • Patent number: 6620771
    Abstract: 2,5-dimercapto-1,3,4-thiadiazole dimer-poly(ether)glycol reaction products and adducts useful as extreme pressure additives. Lubricating compositions (e.g., greases) containing reaction products and adducts exhibit improved Timken Load properties.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: September 16, 2003
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Ronald J. Tepper
  • Publication number: 20030158051
    Abstract: Disclosed are antioxidant compositions comprising of:
    Type: Application
    Filed: September 19, 2002
    Publication date: August 21, 2003
    Inventors: Thomas J. Karol, Steven G. Donnelly, Ronald J. Hiza
  • Publication number: 20030134753
    Abstract: This invention relates to improved antioxidant antiwear/extreme pressure compositions consisting of (a) methylenebis(di-n-butyldithiocarbamate) and (b) a diphenylamine derivative of tolutriazole or benzotriazole wherein the (a):(b) mass precent ratio ranges from above about 4:1 to about 50:1 and lubricating compositions containing same.
    Type: Application
    Filed: November 19, 2002
    Publication date: July 17, 2003
    Applicant: R.T. Vanderbilt Company, Inc.
    Inventors: Brian W. Stunkel, Thomas J. Karol, Steven G. Donnelly
  • Patent number: 6489484
    Abstract: Thiadiazole-poly(ether)glycol reaction products and adducts useful as extreme pressure additives. Lubricating compositions (e.g., greases) containing the reaction products and adducts exhibit improved Timken Load properties.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: December 3, 2002
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Ronald J. Tepper
  • Publication number: 20020058594
    Abstract: 2,5-dimercapto-1,3,4-thiadiazole dimer-poly(ether)glycol reaction products and adducts useful as extreme pressure additives. Lubricating compositions (e.g., greases) containing reaction products and adducts exhibit improved Timken Load properties.
    Type: Application
    Filed: November 14, 2001
    Publication date: May 16, 2002
    Applicant: R.T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Ronald J. Tepper
  • Patent number: 6369005
    Abstract: This invention relates to synergistic antiwear compositions comprising an organomolybdenum complex and an organic sulfur compound selected from 2,5-dimercapto-1,3,4-thiadiazole derivatives, bisdithiocarbamate esters, metal dithiocarbamates, metal phosphorodithioates and phosphorodithioate esters. The organomolybdenum complex is a reaction product prepared by reacting 1 mole fatty oil, 1.0 to 2.5 moles diethanolamine and a molybdenum source. Lubricating compositions containing the synergistic compositions possess good antiwear properties and improved oxidation stability.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: April 9, 2002
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventors: Thomas J. Karol, Steven G. Donnelly