Patents by Inventor George E. Sheldrick

George E. Sheldrick 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).

  • Ethylenically unsaturated carbamates and coating compositions
    Patent number: 5102949
    Abstract: Ethylenically unsaturated carbamates are prepared by reaction of unsaturated isocyanates with the hydroxy groups of polyvinyl acetals. The ethylenically unsaturated carbamates either alone or formulated with unsaturated co-reactants such as (meth)-acryloyl monomers and oligomers, maleates and fumarates provide radiation curable coating compositions.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: April 7, 1992
    Assignee: Monsanto Company
    Inventors: William A. Dupont, George E. Sheldrick
  • Ethylenically unsaturated carbamates and coating compositions
    Patent number: 5055518
    Abstract: Ethylenically unsaturated carbamates are prepared by reaction of unsaturated isocyanates with the hydroxy groups of polyvinyl acetals. The ethylenically unsaturated carbamates either alone or formulated with unsaturated co-reactants such as (meth)-acryloyl monomers and oligomers, maleates and fumarates provide radiation curable coating compositions.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: October 8, 1991
    Assignee: Monsanto Company
    Inventors: William A. Dupont, George E. Sheldrick
  • Low-salt containing aqueous solutions of melamine-formaldehyde resin
    Patent number: 4444945
    Abstract: Low-salt containing aqueous solutions of melamine formaldehyde condensation products having anionic sulfo groups are prepared in a two stage process. In the first stage melamine, formaldehyde, and bisulfite are condensed in an aqueous solution at atmospheric reflux and pH 8-10 for 1-5 hours. In the second stage, condensation is continued at pH 6-7 and atmospheric reflux for 2-6 hours. The product is cooled and adjusted to pH 7-9.
    Type: Grant
    Filed: February 15, 1983
    Date of Patent: April 24, 1984
    Assignee: Monsanto Company
    Inventor: George E. Sheldrick