Patents by Inventor Phillip B. Valkovich

Phillip B. Valkovich 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).

  • Polymer containing a polyisobutylene-derived backbone
    Patent number: 4973732
    Abstract: Polymers, such as polysiobutylene or ethylene-propylene copolymers, are functionalized by reaction with an activated imine to yield novel polymers.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: November 27, 1990
    Assignee: Texaco Inc.
    Inventors: Phillip B. Valkovich, Kechia J. Chou
  • Method of functionalizing polymers
    Patent number: 4973733
    Abstract: Polymers, such as polyisobutylene or ethylene-propylene copolymers, are functionalized by reaction with an activated imine to yield novel polymers.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: November 27, 1990
    Assignee: Texaco Inc.
    Inventors: Phillip B. Valkovich, Kechia J. Chou
  • Polymers with amino-methyl-propene-2-yl groups contaiing electron-withdrawing groups
    Patent number: 4904741
    Abstract: Polymers, such as polyisobutylene or ethylene-propylene copolymers, are functionalized by reaction with an activated imine to yield novel polymers.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: February 27, 1990
    Assignee: Texaco Inc.
    Inventors: Phillip B. Valkovich, Kechia J. Chou
  • Lubricating oil containing a polymer having a functionalized backbone which contains an electron withdrawing group
    Patent number: 4659491
    Abstract: Polymers, such as polyisobutylene or ethylene-propylene copolymers, are functionalized by reaction with an activated imine to yield novel polymers.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: April 21, 1987
    Assignee: Texaco Inc.
    Inventors: Phillip B. Valkovich, Kechia J. Chou
  • N-substituted enaminones and oleaginous compositions containing same
    Patent number: 4579675
    Abstract: Described are novel enaminones of the formula: ##STR1## wherein R is a lower alkyl or oxyalkyl group having 1 to 5 carbon atoms, R.sub.1 is an alkyl group having from 1 to 200 carbon atoms or a similar alkyl group substituted by nitrogen, oxygen or other inert substituents; R.sub.2 is hydrogen or an alkyl group having from 1 to 20 carbon atoms; R.sub.3 is an alkyl or substituted alkyl group having from 1 to 20 carbon atoms. These products are prepared by the reaction of a 1,3-dicarbonyl compound and a primary or secondary amine analog.In neat or mixed form, the present compounds are useful as dispersants-detergents in oleaginous compositions.
    Type: Grant
    Filed: November 9, 1983
    Date of Patent: April 1, 1986
    Assignee: Texaco Inc.
    Inventors: Robert A. Sawicki, Benjamin J. Kaufman, Phillip B. Valkovich, Joseph B. Biasotti
  • Amine-polymer dispersants in lubricating oils and a method of improving the dispersancy of a lubricating oil
    Patent number: 4510063
    Abstract: Polymers containing amine functionality, prepared by hydrolyzing polymers bearing carbamate functionality, may be converted to dispersants useful in lubricating oils.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: April 9, 1985
    Assignee: Texaco Inc.
    Inventors: Kechia J. Chou, Phillip B. Valkovich
  • Quaternary ammonium salt composition and lubricating oil containing same
    Patent number: 4388200
    Abstract: A quaternary ammonium salt composition represented by the formula: ##STR1## in which R is a hydrocarbyl radical having from 25 to 200 carbon atoms, x is a number from 2 to 4, y has a value from 0 to 4, R' is a hydrocarbyl radical having from 1 to 10 carbon atoms, and z is a number from 0 to 2, is provided, as well as a method of preparation and a lubricating oil composition containing same.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: June 14, 1983
    Assignee: Texaco Inc.
    Inventors: Phillip B. Valkovich, Kenneth G. Hammond