Patents by Inventor Mark E. Cekoric

Mark E. Cekoric 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).

  • Internal mold release agent for use in reaction injection molding
    Patent number: 4581386
    Abstract: The present invention is directed to a process for the production of optionally cellular, polyurethane elastomer molding by reacting a reaction mixture containing(I) a polyisocyanate,(II) an isocyanate-reactive polymer having a molecular weight of about 1800 to 12,000,(III) about 5 to 50% by weight, based on the weight of component (II) of a chain extender comprising a sterically hindered aromatic diamine and(IV) an internal mold release agent mixture comprising(a) about 0.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: April 8, 1986
    Assignee: Mobay Chemical Corporation
    Inventors: Ronald P. Taylor, Mark E. Cekoric, John E. Dewhurst, Saad M. Abouzahr
  • Internal mold release agent for use in reaction injection molding
    Patent number: 4519965
    Abstract: The present invention is directed to a process for the production of optionally cellular, polyurethane elastomer molding by reacting a reaction mixture containing(I) a polyisocyanate,(II) an isocyanate-reactive polymer having a molecular weight of about 1800 to 12,000,(III) about 5 to 50% by weight, based on the weight of component (II) of a chain extender comprising a sterically hindered aromatic diamine and(IV) an internal mold release agent mixture comprising(a) about 0.
    Type: Grant
    Filed: August 23, 1984
    Date of Patent: May 28, 1985
    Assignee: Mobay Chemical Corporation
    Inventors: Ronald P. Taylor, Mark E. Cekoric, John E. Dewhurst, Saad M. Abouzahr
  • Talc-based external mold release agent for polyurethane foams
    Patent number: 4131662
    Abstract: The instant invention is directed to novel mold release agents for polyurethane resins and to the use thereof, particularly in the closed mold forming of polyurethane foams. The mold release agents disclosed herein are applied to the surface of the mold prior to molding and broadly comprise talc dispersed in an emulsion of water and an organic solvent.
    Type: Grant
    Filed: January 3, 1978
    Date of Patent: December 26, 1978
    Assignee: Mobay Chemical Corporation
    Inventors: Mark E. Cekoric, Robert M. Loring, William A. Ludwico