Patents by Inventor Renée Jo Keller

Renée Jo Keller 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).

  • Ester alcohols and substituted carbamates thereof for minimizing deterioration of polyurethane foams
    Patent number: 7615580
    Abstract: A composition for making a polyurethane foam includes a non-fugitive tertiary amine urethane catalyst and an ester alcohol or substituted carbamate thereof. Foams prepared from the reaction of a polyol and an organic isocyanate in the presence of these ingredients show excellent resistance to deterioration of physical properties upon humid ageing.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: November 10, 2009
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Juan Jesus Burdeniuc, Stephan Herman Wendel, Renée Jo Keller