Patents by Inventor Thomas Roger Strand

Thomas Roger Strand 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).

  • Photoimageable coating composition and composite article thereof
    Patent number: 7449280
    Abstract: A photoimagable composition suitable for use as a negative photoresist comprising: (A) at least one epoxidized polyfunctional bisphenol A formaldehyde novolak resin; (B) at least one polycaprolactone polyol reactive diluent, wherein the amount of component (A) is from about 95% to about 75% by weight of the sum of (A) and (B) and the amount of component (B) is from about 5% to about 25% by weight of the sum of (A) and (B); (C) at least one photoacid generator in an amount from about 2.5 to about 12.5 parts per hundred parts of resin and reactive diluent, which initiates polymerization upon exposure to actinic radiation; and (D) a sufficient amount of solvent to dissolve (A), (B) and (C); wherein the solvent comprises 2-pentanone, 3-pentanone, and 1,3-dioxolane and mixtures thereof.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: November 11, 2008
    Assignees: MicroChem Corp., Hewlett-Packard Development Company, LP
    Inventors: Donald W. Johnson, William D. Weber, Pamela J. Waterson, Vincent R. Urdi, Joseph R. Molea, Thomas Roger Strand