Patents by Inventor Kenneth W. Kristal

Kenneth W. Kristal 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).

  • Patent number: 5233067
    Abstract: A method for metallizing a polymeric substrate is disclosed. The method includes contacting a surface of an etched polymeric substrate with a silane coupling agent and depositing a metallic layer over the surface. The silane coupling agent forms a chemical linkage between the substrate and the metallic layer. A coupling agent composition and a metallized polymeric substrate are also described.
    Type: Grant
    Filed: May 8, 1990
    Date of Patent: August 3, 1993
    Assignee: Rogers Corporation
    Inventors: Gwo Swei, Kenneth W. Kristal
  • Patent number: 5077115
    Abstract: A thermoplastic composite material is presented which comprises a thermoplastic matrix which is highly filled with a coated ceramic filler. In an important feature of the present invention, the ceramic filler has been coated with a rubbery polymer that bonds to the filler. In a preferred embodiment, the thermoplastic matrix comprises a fluoropolymer, preferably a chlorofluoropolymer and the ceramic filler is a fused amorphous silica coated with a rubbery polymeric material. The thermoplastic composite material of this invention exhibits numerous advantages which makes it well suited for use as a bonding film, particularly a bonding film for producing multilayer printed wiring boards.
    Type: Grant
    Filed: May 8, 1990
    Date of Patent: December 31, 1991
    Assignee: Rogers Corporation
    Inventors: David J. Arthur, Allen F. Horn, III, Kenneth W. Kristal, Gwo S. Swei, William R. Zdanis