Patents by Inventor James S. Holtrop

James S. Holtrop 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).

  • Cat litter mat
    Patent number: 6357388
    Abstract: A cat litter mat having flexible, paw-engaging projections formed of thermoplastic polyolefin elastomer, preferably a blend of such elastomer with low density polyethylene.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: March 19, 2002
    Assignee: Solutia Inc.
    Inventors: James S. Holtrop, Carey D. Widder
  • Cleaning poultry manure from support surfaces of an egg-laying installation
    Patent number: 6340000
    Abstract: A method of cleaning poultry manure from support surfaces of an egg-laying installation which comprises contacting the manure with an aqueous solution obtained by combining water and one or more compounds selected from alkali metal polyphosphates, organo-phosphonates, alkali metal salts of nitriloacetic acid and alkali metal salts of ethylene diamine tetraacetic acid.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: January 22, 2002
    Assignee: Solutia Inc.
    Inventors: James S. Holtrop, John R. Wiedemann
  • Sound insulation pad and use thereof
    Patent number: 5867957
    Abstract: A sound insulation pad for inhibiting sound transmission between floors comprised of thermoplastic material having a three-dimensional shaped surface. The invention also relates to a sound rated floor system using the sound insulation pad and a method of constructing such sound rated floor system.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: February 9, 1999
    Assignee: Solutia, Inc.
    Inventor: James S. Holtrop
  • Headliners having improved sound-absorbing characteristics
    Patent number: 4851283
    Abstract: Thermoformable laminates, suitable for use as automobile headliners, comprising a layer of non-woven fabric (acoustical pad bonded to one side of a foamed polymer sheet are disclosed. The non-woven fabric comprises a certain blend of staple fibers which provide an optimum balance of characteristics including cost and improved sound absorption characteristics which are important headliner characteristics, especially, for compact and subcompact automobile uses.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: July 25, 1989
    Assignee: Monsanto Company
    Inventors: James S. Holtrop, David Bowen, Jr.
  • Thermoformable laminate structure
    Patent number: 4621013
    Abstract: A moisture resistant, moldable, thermoformable laminate structure comprising a layer of foamed thermoplastic material having a polymer-impregnated cloth bonded to one surface thereof.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: November 4, 1986
    Assignee: Monsanto Company
    Inventors: James S. Holtrop, Richard P. Maurer
  • Method of making a thermoformable laminate structure
    Patent number: 4608104
    Abstract: A twin-sheet thermoformable laminate structure is provided which has two layers of foamed thermoplastic material. A coating of a fabric impregnated with an acrylic resin having a softening temperature greater than 75.degree. C. is applied to at least the outer surface of each layer of thermoplastic material.
    Type: Grant
    Filed: July 13, 1985
    Date of Patent: August 26, 1986
    Assignee: Monsanto Company
    Inventors: James S. Holtrop, Richard P. Maurer
  • Thermoformable polymeric foam headliners
    Patent number: 4600621
    Abstract: Thermoformable laminate structure with a retroflexed margin comprises at least one sheet of thermoplastic foam having a polymer-impregnated cloth adhered to at least one side thereof. Such laminate structure is useful in an automobile headliner assembly where hidden clips engage the retroflexed margin to hold the headliner proximate the roof without the need for garnish molding.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: July 15, 1986
    Assignee: Monsanto Company
    Inventors: Richard P. Maurer, James S. Holtrop
  • Laminate structure with improved acoustical absorption
    Patent number: 4557970
    Abstract: A laminate structure with improved acoustical absorption is provided which has a first and a third layer of foamed thermoplastic material and a second layer, intermediate the first and third layers, which is a material having acoustical properties different from the properties of the material of the first and third layers. A portion of the surface area of each layer is adhesively bonded to the adjacent layer. A sheet of paper or fabric is adhesively bonded to at least the outer surfaces of the first and third layers.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: December 10, 1985
    Assignee: Monsanto Company
    Inventors: James S. Holtrop, Richard P. Maurer
  • Process for preparing a thermoformable laminate structure
    Patent number: 4531994
    Abstract: A process for preparing thermoformable laminate structure comprising foamed thermoplastic sheet having a fabric adhesively bonded to one surface thereof.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: July 30, 1985
    Assignee: Monsanto Company
    Inventors: James S. Holtrop, Richard P. Maurer
  • Thermoformable laminate structure
    Patent number: 4529641
    Abstract: A twin-sheet thermoformable laminate structure is provided which has two layers of foamed thermoplastic material. A coating of a fabric impregnated with an acrylic resin having a softening temperature greater than 75.degree. C. is applied to at least the outer surface of each layer of thermoplastic material.
    Type: Grant
    Filed: September 7, 1984
    Date of Patent: July 16, 1985
    Assignee: Monsanto Company
    Inventors: James S. Holtrop, Richard P. Maurer
  • Thermoformable laminate structure
    Patent number: 4489126
    Abstract: A moisture-resistant, moldable, thermoformable laminate structure and method of making same is disclosed. The structure comprises a layer of a foamed thermoplastic material having first and second surfaces and a coating of acrylic resin, having a softening temperature greater than approximately 130.degree. C., impregnated fabric bonded to said first and second surfaces.
    Type: Grant
    Filed: November 21, 1983
    Date of Patent: December 18, 1984
    Assignee: Monsanto Company
    Inventors: James S. Holtrop, Richard P. Maurer
  • Thermoformable laminate structure with improved acoustical absorption
    Patent number: 4476183
    Abstract: A thermoformable laminate structure with improved acoustical absorption is provided which has a first and a third layer of foamed thermoplastic material and a second layer, intermediate the first and third layers, which is a material having acoustical properties different from the properties of the material of the first and third layers. A portion of the surface area of each layer is adhesively bonded to the adjacent layer. A resin impregnated fabric is bonded to the outer surfaces of the first and third layers.
    Type: Grant
    Filed: November 21, 1983
    Date of Patent: October 9, 1984
    Assignee: Monsanto Company
    Inventors: James S. Holtrop, Richard P. Maurer
  • Polyblends of thermoplastic copolyetheresters, styrene-maleic anhydride polymers, acrylonitrile-butadiene-styrene polymers, and nitrile rubbers
    Patent number: 4460741
    Abstract: Molding compositions are prepared from blends of (A) a thermoplastic copolyetherester elastomer; (B) a styrene maleic anhydride polymer; (C) an ABS or MBS polymer; and (D) a nitrile rubber. Component B, the styrene maleic anhydride polymer may optionally contain a termonomer such as methyl-methacrylate or acrylonitrile and a rubber component.
    Type: Grant
    Filed: November 4, 1982
    Date of Patent: July 17, 1984
    Assignee: Monsanto Company
    Inventors: Daniel L. Dufour, James S. Holtrop