Patents by Inventor William S. Pfister

William S. Pfister 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).

  • Adhesive with polyesterurethane, halogenated polyolefin and Diels-Alder adduct
    Patent number: 5310796
    Abstract: An adhesive composition containing a linear polyester polyurethane, a halogenated polyolefin, an epoxy/silane adduct, a Diels-Alder adduct of a halogenated cyclic conjugated diene and a block copolymer of styrene and butadiene and a crosslinking compound for the linear polyester polyurethane. The adhesive composition is preferably utilized as a two-component adhesive for bonding vinyl polymers such as polyvinyl chloride to various substrates such as glass. The adhesive composition exhibits substantial resistance to environmental conditions without the requirements of a pre-heating step.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: May 10, 1994
    Assignee: Lord Corporation
    Inventors: Patrick A. Warren, William S. Pfister, Mark A. Weih
  • Glass adhesive
    Patent number: 5102937
    Abstract: A chemical formulation useful as a coating, primer or adhesive including a linear polyester polyurethane, a halogenated polyolefin, an alkoxy silane compound, and a cross-linker. The formulation is preferably utilized as a two-component adhesive for bonding vinyl polymers such as polyvinyl chloride to various substrates such as glass.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: April 7, 1992
    Assignee: Lord Corporation
    Inventors: Patrick A. Warren, William S. Pfister, Mark A. Weih