Patents by Inventor David B. Schwind

David B. Schwind 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).

  • Preparation of polyindanebisphenols and polymers derived therefrom
    Patent number: 6153721
    Abstract: Novel polyindanebisphenols or PIBPs for the preparation of new and improved thermosetting polymers having the general formula of ##STR1## are provided. Also disclosed are thermoplastic or thermoset compositions prepared using the novel compounds of the invention, as well as methods of making and using the same. When copolymerized or reactive with other commercial resins such as, e.g., epoxy compounds, PIBP based polymers are characterized by high glass transition temperature ("Tg"), low dielectric constant, low moisture absorption, low coefficient of expansion, low cost, and can be processed on equipment typically used for the production of epoxy based laminates.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: November 28, 2000
    Assignee: Honeywell International Inc.
    Inventors: Thomas F. McCarthy, David B. Schwind, Gordon C. Smith
  • Cinnamamides and their use as stabilizers
    Patent number: 5888481
    Abstract: The invention relates to novel cinnamamides, a process for their manufacture and their use as UV absorbers. The cinnamamides of the invention may be used as UV absorbers in a variety of engineered resins such as polyamides (especially nylon 6 and 6,6), polycarbonates, polyacetals, polysulfones, polyimides, polyaryletherketones, and polyesters, (especially PET and PBT), as well as, other polymers such as polyvinylchloride and polyolefins (polyethylenes and polypropylenes).
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: March 30, 1999
    Assignee: AlliedSignal Inc.
    Inventors: Keith A. Horn, Richard B. Heath, David B. Schwind