Patents Represented by Attorney Edward Korompai

Find this attorney in the Justia Lawyer Directory

  • Synergistic amine chain-extenders in polyurea spray elastomers
    Patent number: 7078475
    Abstract: Disclosed are derivatives of isophorone diamine exhibiting a synergistic relationship with other commonly employed chain extenders offering enhanced efficacy with regard to slowing of the polyurea elastomer cure profile, and processes employing their use. According to the invention, extensions of the gel-free and tack-free times are more readily achieved at lower loading levels for these chain extender blends than are afforded through the sole use of the individual molecules.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: July 18, 2006
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Howard P. Klein, Jerry L. Reddinger, Kenneth M. Hillman
  • Organic anion catalyst system for foams
    Patent number: 7049265
    Abstract: Disclosed herein are compositions useful for introducing metal carboxylate salts as catalysts into systems useful for producing polyurethane and polyisocyanurate foams. The methods permit the introduction of such catalysts in the absence of substantial amounts of water which otherwise cause inferior foams to be produced. A method for producing foam employing the catalysts are also described.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: May 23, 2006
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Robert A. Grigsby, Jr., Robert L. Zimmerman, Ernest L. Rister, Jr.