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).

  • Additives for Improving Polyurethane Foam Performance
    Publication number: 20120071576
    Abstract: Polyurethane foam compositions and processes to make flexible polyurethane foams are disclosed. Polyurethane foam is produced in the presence of additives comprising guanidine derivatives. Improvements in physical properties such as air flow, dimensional stability, tensile, tear, elongation and foam hardness is observed when these additives are present in polyurethane formulations. In addition, these additives can minimize polymer degradation under humid ageing conditions resulting in foam products with better mechanical properties.
    Type: Application
    Filed: July 8, 2011
    Publication date: March 22, 2012
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Juan Jesus Burdeniuc, James Douglas Tobias, Renee Jo Keller, You-Moon Jeon
  • 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