Patents by Inventor Lee F. Lawler

Lee F. Lawler 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).

  • Silicone surfactant for use in polyurethane foams prepared using vegetable oil based polyols
    Patent number: 9587068
    Abstract: Silicone surfactants for use in polyurethane foams prepared using natural oils based polyols comprise silicone copolymers possessing alkyl and polyalkylene oxide polyether pendants. The silicone surfactants yield foams having improved physical properties as compared to other surfactant compositions when used in vegetable oil based urethane foams.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: March 7, 2017
    Assignee: Momentive Performance Materials Inc.
    Inventors: Ladislau Heisler, Gregory A. Pickrell, Lee F. Lawler
  • SILICONE SURFACTANT FOR USE IN POLYURETHANE FOAMS PREPARED USING VEGETABLE OIL BASED POLYOLS
    Publication number: 20100286295
    Abstract: Silicone surfactants for use in polyurethane foams prepared using natural oils based polyols comprise silicone copolymers possessing alkyl and polyalkylene oxide polyether pendants. The silicone surfactants yield foams having improved physical properties as compared to other surfactant compositions when used in vegetable oil based urethane foams.
    Type: Application
    Filed: May 11, 2009
    Publication date: November 11, 2010
    Inventors: Ladislau Heisler, Gregory A. Pickrell, Lee F. Lawler
  • Viscoelastic polyurethane foam and process for its manufacture
    Publication number: 20070293594
    Abstract: The present invention provides a viscoelastic polyurethane foam and a process for the manufacture of such foam. The foam-forming composition of the present invention utilizes a cell opener that inhibits or reduces foam shrinkage that is detrimental to viscoelastic polyurethane foam properties.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 20, 2007
    Inventors: Ladislau Heisler, Gregory A. Pickrell, Lee F. Lawler, Jolene C. Graham
  • Fire retardant silicone surfactants for use in inert gas blown polyurethane foams
    Patent number: 6653359
    Abstract: Silicone surfactants for use in inert gas blown polyurethane foams comprise low to moderate molecular weight comb-type flame-retardant silicone copolymers possessing no high ethylene oxide content branches. The silicone surfactants yield Dissolved Gas Technology foams having improved consistency as compared to other surfactant compositions.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: November 25, 2003
    Inventors: Brian L. Hilker, Lee F. Lawler, Susan B. McVey
  • FIRE RETARDANT SILICONE SURFACTANTS FOR USE IN INERT GAS BLOWN POLYURETHANE FOAMS
    Publication number: 20030203984
    Abstract: Silicone surfactants for use in inert gas blown polyurethane foams comprise low to moderate molecular weight comb-type flame-retardant silicone copolymers possessing no high ethylene oxide content branches. The silicone surfactants yield Dissolved Gas Technology foams having improved consistency as compared to other surfactant compositions.
    Type: Application
    Filed: April 26, 2002
    Publication date: October 30, 2003
    Inventors: Brian L. Hilker, Lee F. Lawler, Susan B. McVey
  • Silicone surfactants for use in inert gas blown polyurethane foams
    Patent number: 5525640
    Abstract: It has now been found that the use of inert gases as an auxiliary blowing agent in flexible polyurethane foams places unexpected requirements on the composition of the silicone surfactants used in such foams. Typical silicone polyalkylene oxide polyether copolymer comb-type surfactants containing greater than about 37% ethylene oxide in the pendant polyether chains cause large cells when added inert gas is used as the blowing agent.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: June 11, 1996
    Assignee: OSi Specialties, Inc.
    Inventors: Richard M. Gerkin, Mark E. Harakal, Lee F. Lawler, Glenn A. Miller