Patents by Inventor Daniel W. Feldman

Daniel W. Feldman 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).

  • High nitrile copolymer resins containing epoxidized oil for improved impact resistance
    Patent number: 4327002
    Abstract: High nitrile copolymers are rendered impact resistant by inclusion therein of small amounts of epoxidized vegetable oils.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: April 27, 1982
    Assignee: The Standard Oil Company
    Inventor: Daniel W. Feldman
  • Die assembly providing uniform pressure and flow
    Patent number: 4281981
    Abstract: A die assembly of the present invention for extrudable materials includes a first member providing an external wall of a continuous cavity for passage of the extrudable material, a second member providing the internal wall of the cavity, a bushing for directing the flow of extrudable material within the cavity in one axial direction, a distributor interposed within the cavity, providing a restricted space therein for passage of the extrudable material, and a channel formed between the bushing and distributor through which the extrudable material flows axially and peripherally. The die assembly of the present invention can be modified for the coextrusion of two or more layers.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: August 4, 1981
    Assignee: Standard Oil Company (Ohio)
    Inventor: Daniel W. Feldman
  • Method for improving color and impact strength of nitrile polymers
    Patent number: 4206300
    Abstract: Reduction of yellowing and improvement of impact strength are obtained during the processing of nitrile polymers when said polymers are heated to a plastic state in the presence of an inert gas, thereby excluding oxygen.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: June 3, 1980
    Assignee: Standand Oil Company
    Inventors: Herbert Talsma, Thomas J. Bond, Daniel W. Feldman
  • Manganese containing fuels
    Patent number: 4141693
    Abstract: The invention is gasoline containing an added manganese compound to improve the octane rating of the gasoline and including a small amount of an additive selected from a group consisting of a monocarboxylic acid or its ester, a dicarboxylic acid or its monoester or diester, an alkylamine, phenol, a substituted phenol or mixture thereof.
    Type: Grant
    Filed: December 18, 1974
    Date of Patent: February 27, 1979
    Assignee: Standard Oil Company (Ohio)
    Inventors: Daniel W. Feldman, James W. Sprague, Franklin Veatch
  • Manganese containing fuels
    Patent number: 4028065
    Abstract: The invention is gasoline, containing manganese additives, to improve the octane rating of the gasoline and including a hydrocarbon ester of citric acid.
    Type: Grant
    Filed: November 27, 1974
    Date of Patent: June 7, 1977
    Assignee: Standard Oil Company
    Inventors: James W. Sprague, Daniel W. Feldman, Franklin Veatch
  • Manganese containing fuels
    Patent number: 3966429
    Abstract: Gasoline compositions containing manganese additives are improved by the addition of either a citrate compound having at least one alkyl group or a tetravalent tin compound having at least one alkyl group, both of which compounds must be soluble in gasoline and are added to the gasoline composition to improve the performance of the engine.
    Type: Grant
    Filed: May 16, 1974
    Date of Patent: June 29, 1976
    Assignee: Standard Oil Company
    Inventors: James W. Sprague, Daniel W. Feldman, Frank Veatch