Patents Represented by Attorney R. G. Danehower

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  • Synergistic lubricating compositions
    Patent number: 4211662
    Abstract: Lubricating compositions including all types of greases and oils such as cutting oils and rolling oils having enhanced extreme pressure wear properties are provided by including in them as an extreme pressure additive a synergistic mixture of one or more polymers of 1,2,4-and 1,3,4-thiadiazoledithiols and molybdenum disulfide.
    Type: Grant
    Filed: June 6, 1978
    Date of Patent: July 8, 1980
    Assignee: Pennwalt Corporation
    Inventor: James P. King
  • Polyamide resins flame retarded by poly(metal phosphinate)s
    Patent number: 4208321
    Abstract: Polyesters, polyamides and polyester-polyamides are flame retarded by incorporating a flame retardant amount of selected poly(metal phosphinate)s with the resins. The poly(metal phosphinates)s can be incorporated with the resins either by admixture of the poly(metal phosphinate)s with the polyester or polyamide or by adding the poly(metal phosphinate)s to the polyester or polyamide polymerization reaction whereby the poly(metal phosphinate)s become a part of the polymer structure.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: June 17, 1980
    Assignee: Pennwalt Corporation
    Inventor: Stanley R. Sandler
  • Polyester-polyamide resins flame retarded by poly(metal phosphinate)s
    Patent number: 4208322
    Abstract: Polyesters, polyamides and polyester-polyamides are flame retarded by incorporating a flame retardant amount of selected poly(metal phosphinate)s with the resins. The poly(metal phosphinate)s can be incorporated with the resins either by admixture of the poly(metal phosphinate)s with the polyester or polyamide or by adding the poly(metal phosphinate)s to the polyester or polyamide polymerization reaction whereby the poly(metal phosphinate)s become a part of the polymer structure.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: June 17, 1980
    Assignee: Pennwalt Corporation
    Inventor: Stanley R. Sandler
  • Concentrates for imparting temporary soil release resins in fabrics during laundering
    Patent number: 4057503
    Abstract: Compositions of matter are disclosed in which acrylic resins for temporary impregnation of textile fabrics are combined with a laundry sour in aqueous or granular concentrates. These compositions are then introduced to the wash wheel in the last stage of a laundering operation immediately prior to drying the textile fabric. The acrylic resins impart soil release and stain removal properties to the fabrics. Fabric finishing agents may also be included in the compositions.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: November 8, 1977
    Assignee: Pennwalt Corporation
    Inventors: Clair Warren Graver, Clarence Edward Carwheel, Charles Joseph Bunczk
  • Scale reducer for zinc phosphating solutions
    Patent number: 4057440
    Abstract: The hard rock-like scale formed on zinc phosphating equipment is rendered soft and dispersible by adding a scale-reducing amount of dialkyl triamine pentakis methylene phosphonic acid or its alkaline salt in the zinc phosphating solution.
    Type: Grant
    Filed: January 29, 1976
    Date of Patent: November 8, 1977
    Assignee: Pennwalt Corporation
    Inventors: Thomas Clifford Atkiss, William Elgin Keen, Jr.
  • Tabletting spherical dental amalgam alloy
    Patent number: 3933961
    Abstract: A process is provided for tabletting spherical dental amalgam alloy. The process comprises treating the particles of spherical alloy by contacting them with a hydrochloric acid solution of cupric chloride, separating the acidic cupric chloride solution from the spherical alloy particles, washing the spherical alloy particles with water, drying the spherical alloy particles to remove residual water and then compacting the treated spherical alloy particles into a solid form such as a tablet.
    Type: Grant
    Filed: December 13, 1974
    Date of Patent: January 20, 1976
    Assignee: Pennwalt Corporation
    Inventor: Charles Francis Burns