Patents by Inventor Frances J. TIMMERS

Frances J. TIMMERS 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).

  • Durable thermosets from reducing sugars and primary polyamines
    Patent number: 9879138
    Abstract: The present invention provides thermosetting aqueous binder compositions of one or more diprimary diamine, e.g. lysine, or poly(primary amine), e.g. polyethylenimine, and one or more reducing sugar in which the number of equivalents of primary amine relative to the number of equivalents of carbonyl groups in the reducing sugar ranges from 0.4:1 to 2:1, the binders being suitable for use on fiber, nonwoven, woven web and finely divided substrates. The binders are at least substantially formaldehyde free, need no polycarboxylic or polycarboxylate component, and yet provide excellent hot wet tensile strength when cured for as little time as a minute or less in use.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: January 30, 2018
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: William Finch, Haksu Lee, Charles J. Rand, Robert L. Sammler, Frances J. Timmers, Barry Weinstein
  • DURABLE THERMOSETS FROM REDUCING SUGARS AND PRIMARY POLYAMINES
    Publication number: 20110262648
    Abstract: The present invention provides thermosetting aqueous binder compositions of one or more diprimary diamine, e.g. lysine, or poly(primary amine), e.g. polyethylenimine, and one or more reducing sugar in which the number of equivalents of primary amine relative to the number of equivalents of carbonyl groups in the reducing sugar ranges from 0.4:1 to 2:1, the binders being suitable for use on fiber, nonwoven, woven web and finely divided substrates. The binders are at least substantially formaldehyde free, need no polycarboxylic or polycarboxylate component, and yet provide excellent hot wet tensile strength when cured for as little time as a minute or less in use.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 27, 2011
    Inventors: Haksu LEE, William FINCH, Charles J. RAND, Barry WEINSTEIN, Robert L. SAMMLER, Frances J. TIMMERS