Patents by Inventor Dennis Paul Konopa

Dennis Paul Konopa 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).

  • Hydrofluorocarbon blown foam and method for preparation thereof
    Patent number: 7288211
    Abstract: The invention relates to the addition of ?-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising a hydrofluorocarbon selected from the group consisting of 1,1,1,3,3-pentafluoropropane, 1,1,1,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, and mixtures thereof.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: October 30, 2007
    Assignee: Honeywell International Inc.
    Inventors: Mary Charlotte Bogdan, Leslie Bruce Bement, Barbara Ruth Decaire, Dennis Paul Konopa, Harold John Kieta, Rajiv Ratna Singh
  • Hydrofluorocarbon blown foam and method for preparation thereof
    Publication number: 20030158276
    Abstract: The invention relates to the addition of &agr;-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising a hydrofluorocarbon selected from the group consisting of 1,1,1,3,3-pentafluoropropane, 1,1,1,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, and mixtures thereof.
    Type: Application
    Filed: January 24, 2003
    Publication date: August 21, 2003
    Inventors: Mary Charlotte Bogdan, Leslie Bruce Bement, Barbara Ruth Decaire, Dennis Paul Konopa, Harold John Kieta, Rajiv Ratna Singh
  • Hydrofluorocarbon blown foam and method for preparation thereof
    Patent number: 6545063
    Abstract: The invention relates to the addition of &agr;-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising a hydrofluorocarbon selected from the group consisting of 1,1,1,3,3-pentafluoropropane, 1,1,1,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, and mixtures thereof.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: April 8, 2003
    Assignee: AlliedSignal Inc.
    Inventors: Mary Charlotte Bogdan, Leslie Bruce Bement, Barbara Ruth Decaire, Dennis Paul Konopa, Harold John Kieta, Rajiv Ratna Singh
  • POLYOL-BLOWING AGENT COMPOSITIONS WITH IMPROVED STORAGE STABILITY
    Publication number: 20020040070
    Abstract: Premixes of a polyol suitable for polyurethane or polyisocyanurate foam preparation and 1,1,1,3,3-pentafluoropropane require no stabilizer to inhibit reaction between the fluorocarbon and the polyol. These premixes are useful for polyurethane and polyisocyanurate foam preparation.
    Type: Application
    Filed: July 25, 1997
    Publication date: April 4, 2002
    Inventors: MARY CHARLOTTE BOGDAN, DENNIS PAUL KONOPA, DAVID JOHN WILLIAMS, ROBERT CHRISTIAN PARKER
  • Hydrofluorocarbon blown foam and method for preparation thereof
    Patent number: 6086788
    Abstract: The invention relates to the addition of .alpha.-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising a hydrofluorocarbon selected from the group consisting of 1,1,1,3,3-pentafluoropropane, 1,1,1,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, and mixtures thereof.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: July 11, 2000
    Assignee: AlliedSignal Inc.
    Inventors: Mary Charlotte Bogdan, Leslie Bruce Bement, Barbara Ruth Decaire, Dennis Paul Konopa, Harold John Kieta, Rajiv Ratna Singh