Patents by Inventor Jeffery P. Conrad

Jeffery P. Conrad 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).

  • Ethers of oligomeric phenol-dialdehyde condensation products and a vinyl-benzyl compound
    Patent number: 4816498
    Abstract: Oligomeric condensation products of certain dialdehydes and phenols can be end-capped with a vinylbenzyl moiety and certain other moieties, especially alkyl groups, to afford thermosetting resins particularly valuable in making laminated circuit boards. Resins prepared by the reaction of 1 molar proportion of glyoxal with from 3 to 4 molar proportions of phenol and end-capped with from 50 to 85% vinylbenzyl groups with the remainder being alkyls of 1 through 11 carbon atoms are particularly useful.
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: March 28, 1989
    Assignee: Allied-Signal Inc.
    Inventors: Joseph J. Zupancic, Jean M. J. Frechet, Andrew M. Zweig, Jeffery P. Conrad