Patents by Inventor Elmer Charles Flood

Elmer Charles Flood 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).

  • Hardening a hydrophilic colloid composition
    Patent number: 5800977
    Abstract: A hydrophilic colloid is hardened with a vinyl-sulfone hardener in the presence of a borate compound in an amount sufficient to accelerate the rate of hardening. The borate compound is preferably a compound of Formula (I), or a salt, hydrate or precursor thereof:B(L).sub.n (I)wherein each L is independently --OH, --OR, --NH, --NR, or a substituted or unsubstituted alkyl group, substituted or unsubstituted aryl group, or substituted or unsubstituted heterocyclic group; R is a substituted or unsubstituted alkyl group or substituted or unsubstituted aryl group; and, n is 1, 2, or 3, with the proviso that at least one L is --OH. Preferred borate compounds are sodium and potassium borate, and hydrates thereof, and phenyl boronic acid.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: September 1, 1998
    Assignee: Eastman Kodak Company
    Inventors: Jeffrey Facer Taylor, Hwei-Ling Yau, Elmer Charles Flood, Lan Bach Thai, Susan A. Visser