Patents by Inventor Phyllis I. Meyer

Phyllis I. Meyer 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).

  • Flame-retardant polyurethane foams
    Patent number: 4230822
    Abstract: Improved hydrophilic crosslinked polyurethane foams are prepared by reacting (a) an isocyanate-capped polyoxyethylene prepolymer with (b) at least 20 moles of water per mole of NCO groups in the presence of (c) alumina hydrate, (d) a phosphorus fire-retardant additive and (e) an organic carbon compound which serves to react with phosphate anions at high temperatures (e.g., in the presence of a flame) and reinforces the char provided by combustion of the foam.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: October 28, 1980
    Assignee: W. R. Grace & Co.
    Inventors: Robert M. Murch, Phyllis I. Meyer, John J. Eagan