Patents by Inventor Maria M. Kapuscinski

Maria M. Kapuscinski 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).

  • Hydrocarbon compositions containing polyolefin graft polymers
    Patent number: 4877415
    Abstract: Fuel oils and lubricants of improved properties contain ethylene-propylene copolymers bearing units derived from N-vinyl pyrrolidone and phenothiazine.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: October 31, 1989
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapuscinski, Larry D. Grina, Ronald E. Jones, Rodney L. Sung
  • Multifunctional viscosity index improver
    Patent number: 4842756
    Abstract: Lubricating oils of improved oxidative stability, dispersancy, and viscosity index contain ethylene-propylene copolymer bearing allyl glycidyl ether or glycidyl methacrylate graft monomer--which has been functionalized with 2,5-dimethyl aniline or 2,6-dimethyl morpholine.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: June 27, 1989
    Assignee: Texaco Inc.
    Inventors: Christopher S. Liu, Maria M. Kapuscinski, Larry D. Grina, Ronald E. Jones
  • Anti-oxidant system
    Patent number: 4836943
    Abstract: An oil containing a viscosity index improver of improved oxidative stability contains, as an anti-oxidant system 2,6-di-t-butylphenol and 1-3-aminopropyl-2-pipecoline.
    Type: Grant
    Filed: July 15, 1987
    Date of Patent: June 6, 1989
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapuscinski, Christopher S. Liu, Ronald E. Jones, Larry D. Grina
  • Hydrocarbon compositions containing polyolefin graft polymers having amine and phenothiazine grafted moieties
    Patent number: 4820776
    Abstract: Fuel oils and lubricants of improved properties contain ethylene-propylene copolymers bearing units derived fron N-vinyl pyrrolidone and phenothiazine.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: April 11, 1989
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapuscinski, Larry D. Grina, Ronald E. Jones, Rodney L. Sung
  • Clear high-performance multifunction VI improvers
    Patent number: 4816172
    Abstract: This invention is a method of producing a clear, high-performance dispersant/antioxidant VII. The method comprising admixing a polar modifier to a VI improver during preparation process or to final product at a sufficiently high temperature to produce the desired clear, high performance VI improver.
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: March 28, 1989
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapuscinski, Larry D. Grina, Lee A. Brugger
  • Lubricating oil containing viscosity index improver
    Patent number: 4812261
    Abstract: Lubricating oil of improved dispersancy and anti-oxidancy contains an ethylene-propylene copolymer onto which has been graft polymerized allyl glycidyl ether, the graft polymer having been thereafter functionalized with (i) N-vinyl pyrrolidone and (ii) a Mannich base formed from N-(aminoethyl) piperazine, formaldehyde, and nonyl phenol.
    Type: Grant
    Filed: August 12, 1987
    Date of Patent: March 14, 1989
    Assignee: Texaco Inc.
    Inventors: Christopher S. Liu, Nicholas Benfaremo, Maria M. Kapuscinski, Larry D. Grina
  • Hydrocarbon containing anti-oxidant system
    Patent number: 4798678
    Abstract: An oil containing a viscosity index improver of improved oxidative stability contains, as an anti-oxidant system, 2,6-di-t-butylphenol and N-aminoethylpiperazine.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: January 17, 1989
    Assignee: Texaco Inc.
    Inventors: Christopher S. Liu, Larry D. Grina, Maria M. Kapuscinski
  • Lubricating oil containing dispersant viscosity index improver
    Patent number: 4795577
    Abstract: Lubricating oils of improved properties contain a terpolymer of isocyanatoethyl methacrylate, lauryl methacrylate, and stearyl methacrylate which has been coupled with phenothiazine and 3-dimethylaminopropylamine.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: January 3, 1989
    Assignee: Texaco Inc.
    Inventors: William P. Hart, Maria M. Kapuscinski, Christopher S. Liu
  • Lubricating oil containing dispersant viscosity index improver
    Patent number: 4790948
    Abstract: Lubricating oils of improved properties contain a terpolymer of glycidyl methacrylate, lauryl methacrylate, and stearyl methacrylate which has been functionalized or coupled with phenothiazine and with N-methyl piperazine.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: December 13, 1988
    Assignee: Texaco Inc.
    Inventors: Christopher S. Liu, William P. Hart, Maria M. Kapuscinski
  • Lubricating oil containing dispersant viscosity index improver
    Patent number: 4767553
    Abstract: Lubricating oils of improved properties contain a terpolymer of maleic anhydride, lauryl methacrylate, and stearyl methacrylate which has been functionalized or coupled with phenothiazine and with N-methyl piperazine.
    Type: Grant
    Filed: December 24, 1986
    Date of Patent: August 30, 1988
    Assignee: Texaco Inc.
    Inventors: William P. Hart, Maria M. Kapuscinski, Christopher S. Liu
  • Hydrocarbon compositions containing polyolefin graft polymers
    Patent number: 4764304
    Abstract: Dispersant viscosity index improvers for lubricating oils contain an EPR or EPT polymer onto which has been graft polymerized isocyanatoethyl methacrylate and thereafter reacted with N-methyl piperazine.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: August 16, 1988
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapuscinski, Christopher S. Liu, William P. Hart
  • Dispersant-antioxidant multifunction viscosity index improver
    Patent number: 4699723
    Abstract: A multi-function Viscosity Index Improver having properties, including dispersancy and antioxidation, which comprises a functional ethylene-propylene copolymer having a dispersant/antioxidant unit grafted thereon.
    Type: Grant
    Filed: August 20, 1986
    Date of Patent: October 13, 1987
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapuscinski, Ronald E. Jones
  • Hydrocarbon compositions containing polyolefin graft polymers
    Patent number: 4640788
    Abstract: Lubricants of improved properties contain ethylene-propylene copolymers bearing graft units derived from, as a functional monomer, the reaction product of (i) an unsaturated aldehyde or ketone and (ii) a primary or secondary amine which contains at least one nitrogen atom in a heterocyclic ring.
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: February 3, 1987
    Assignee: Texaco Inc.
    Inventors: Maria M. Kapuscinski, Christopher S. Liu, William P. Hart, Larry D. Grina