Patents by Inventor Julia Renae Bennett

Julia Renae Bennett 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).

  • Dimensional stabilizing, cell opening additives for polyurethane flexible and rigid foams
    Patent number: 6046249
    Abstract: A method for preparing a polyurethane flexible or rigid foam by reacting an organic polyisocyanate with a polyol in the presence of urethane catalyst, water as a blowing agent, optionally a silicone surfactant, and a cell opener characterized in that the cell opener comprises the reaction product of a C1-C20 hydrocarbyl group-containing organic acid anhydride and a substituted phenol which may be alkoxylated or an alkoxylated primary alcohol, optionally reacted in the presence of a tertiary amine urethane catalyst.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: April 4, 2000
    Assignee: Air Products and Chemicals, Inc.
    Inventors: James Douglas Tobias, Julia Renae Bennett, Gary Dale Andrew, John Elton Dewhurst, Robert G. Petrella