Patents by Inventor Hilda R. Dimaano

Hilda R. Dimaano 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).

  • Waterborne coating compositions having ultra low formaldehyde concentration
    Patent number: 5795933
    Abstract: A waterborne coating composition for metal substrates comprising (a) a formaldehyde-containing resin, and (b) a formaldehyde scavenger consisting essentially of an organic compound having at least one active methylene hydrogen and a pKa of about 5 to about 13, wherein the formaldehyde scavenger is present in a sufficient amount to maintain the concentration of free formaldehyde in the composition at less than 0.1% by weight.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: August 18, 1998
    Assignee: The Dexter Corporation
    Inventors: Louis J. Sharp, Hilda R. Dimaano