Patents by Inventor Theodore E. Nalesnik

Theodore E. Nalesnik 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).

  • Elastomer-compatible oxalic acid acylated alkenylsuccinimides
    Patent number: 4927562
    Abstract: Disclosed are elastomer-compatible mono- and bis-alkenylsuccinimide oxamides dispersants prepared by reacting a polyalkyleneamine succinimide with an amount of oxalic acid sufficient to react with at least 30 percent of the reactive nitrogens on the succinimide chain.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: May 22, 1990
    Assignee: Texaco Inc.
    Inventors: Thomas J. Karol, Theodore E. Nalesnik
  • Stable middle distillate fuel-oil compositions
    Patent number: 4919685
    Abstract: A stable middle distillate fuel-oil composition which comprises(a) a major portion of a middle distillate fuel-oil; and(b) a minor amount, as a storage stabilizing additive, of an aliphatic N(N',N'-dimethyl aminopropyl) succinimide of a copolymer and maleic anhydride graft.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: April 24, 1990
    Assignee: Texaco Inc.
    Inventors: Sheldon Herbstman, Theodore E. Nalesnik
  • Stable middle distillate fuel-oil compositions
    Patent number: 4919683
    Abstract: A stable middle distillate fuel-oil composition which comprises(a) a major portion of a middle distillate fuel-oil; and(b) a minor amount, as a storage stabilizing additive, of N(4-anilinophenyl)succinimide of a copolymer and maleic anhydride graft.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: April 24, 1990
    Assignee: Texaco Inc.
    Inventors: Theodore E. Nalesnik, Sheldon Herbstman
  • Stable middle distillate fuel-oil compositions
    Patent number: 4919684
    Abstract: A stable middle distillate fuel-oil composition which comprises(a) a major portion of a middle distillate fuel-oil; and(b) a minor amount, as a storage stabilizing additive, of N-3-(3,5-di-t-butyl-5-hydroxybenzene)propyl succinimide of a copolymer and maleic anhydride graft.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: April 24, 1990
    Assignee: Texaco Inc.
    Inventors: Theodore E. Nalesnik, Sheldon Herbstman
  • Novel VI improver, dispersant, and anti-oxidant additive and lubricating oil composition containing same
    Patent number: 4863623
    Abstract: An additive composition comprising a graft and amine-derivatized copolymer prepared from ethylene and at least one C.sub.3 -C.sub.10 alpha-monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from about 15 to 80 mole percent of ethylene, from about 20 to 85 mole percent of said C.sub.3 -C.sub.
    Type: Grant
    Filed: March 24, 1988
    Date of Patent: September 5, 1989
    Assignee: Texaco Inc.
    Inventor: Theodore E. Nalesnik
  • Diiscyanate acid lubricating oil dispersant and viton seal additives
    Patent number: 4713191
    Abstract: A lubricating oil composition having improved dispersancy. The dispersant being prepared by coupling partially glycolated succinimides with an organic diisocyanate.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: December 15, 1987
    Assignee: Texaco Inc.
    Inventor: Theodore E. Nalesnik
  • Precoupled mono-succinimide lubricating oil dispersants and viton seal additives
    Patent number: 4713189
    Abstract: A lubricating oil composition having improved dispersancy and viton seal compatibility. The dispersant being prepared by coupling two polyethyleneamines with an aldehyde and a phenol, followed by conversion to a succinimide. The resulting coupled succinimide is then acylated with glycolic acid to form a glycolated Mannich phenol coupled mono-alkenyl succinimide.
    Type: Grant
    Filed: August 20, 1986
    Date of Patent: December 15, 1987
    Assignee: Texaco, Inc.
    Inventors: Theodore E. Nalesnik, Nicholas Benfaremo
  • Post-coupled mono-succinimide lubricating oil dispersant and viton seal additives
    Patent number: 4699724
    Abstract: A lubricating oil composition having improved dispersancy and viton seal compatibility. The dispersant being prepared by coupling two mono-alkenyl succinimides with an aldehyde and a phenol. The resulting coupled succinimide is then acylated with glycolic acid to form a glycolated Mannich phenol coupled mono-alkenyl succinimide.
    Type: Grant
    Filed: August 20, 1986
    Date of Patent: October 13, 1987
    Assignee: Texaco Inc.
    Inventors: Theodore E. Nalesnik, Nicholas Benfaremo
  • Dibaisic acid lubricating oil dispersant and viton seal additives
    Patent number: 4663064
    Abstract: A lubricating oil composition having improved dispersancy and viton seal compatibility. The dispersant being prepared by coupling partially glycolated succinimides with an organic diacid.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: May 5, 1987
    Assignee: Texaco Inc.
    Inventors: Theodore E. Nalesnik, Carmen M. Cusano
  • Lubricating oil dispersant and viton seal additives
    Patent number: 4636322
    Abstract: A lubricating oil composition having improved dispersancy and viton seal compatibility. the dispersant being prepared by coupling partly glycolated succinimides with an aldehyde and a phenol.
    Type: Grant
    Filed: November 4, 1985
    Date of Patent: January 13, 1987
    Assignee: Texaco Inc.
    Inventor: Theodore E. Nalesnik
  • Production of cyclic ethers
    Patent number: 4288369
    Abstract: A process for the preparation of cyclic ethers which comprises reacting an alkanediol in which the hydroxyl groups are separated by a chain of at least four carbon atoms in the liquid phase of a catalyst comprising a palladium salt and a copper salt, and recovering the cyclic ether thus formed by a separation step such as distillation. The reaction is carried out in a molecular oxygen gaseous atmosphere. A preferred catalyst is palladium chloride in combination with a copper salt such as cupric chloride or cupric nitrate.
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: September 8, 1981
    Assignee: Western Kentucky University
    Inventors: Norman L. Holy, Theodore E. Nalesnik
  • Production of hydroxy ethers
    Patent number: 4118426
    Abstract: A process for the preparation of hydroxy ethers which comprises reacting an epoxide compound with an organic hydroxy compound in the presence of a PdCl.sub.2 /CuCl.sub.2 /O.sub.2 catalyst system, and recovering the hydroxy ether thus formed from the reaction mixture by a separation step such as distillation. An alternative catalyst system is K.sub.2 PdCl.sub.6 /CuCl.sub.2 /O.sub.2.
    Type: Grant
    Filed: May 10, 1977
    Date of Patent: October 3, 1978
    Assignee: Western Kentucky University
    Inventors: Norman L. Holy, Theodore E. Nalesnik