Patents by Inventor Renee J. Keller

Renee J. 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).

  • Aromatic diacid ester diols and substituted carbamates thereof for minimizing deterioration of polyurethane foams
    Patent number: 7666919
    Abstract: A composition for making a polyurethane foam includes a non-fugitive tertiary amine urethane catalyst and an aromatic diacid ester diol 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: March 14, 2006
    Date of Patent: February 23, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Juan Jesus Burdeniuc, Stephan Herman Wendel, Renee J. Keller