Patents by Inventor Susan P. Buxbaum

Susan P. Buxbaum 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).

  • Polyurethane coatings for bridge deckings and the like
    Patent number: 4855185
    Abstract: Novel polyurethane formulations especially useful as membranes for the protection of bridge deckings. The polurethane is prepared by mixing two components, A and B. Component A consists essentially of a low-molecular weight polyol, e.g., glycerol; a poly(oxypropylene) triol; and an elastomer. Component B is a special MDI, either a mix of 4,4'- and 2,4'-isomers of diphenylmethane diisocyanate or a mix of 4,4'-diphenylmethane diisocyanate and its reaction product with a low molecular weight poly(oxypropylene).
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: August 8, 1989
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Cung Vu, Susan P. Buxbaum, Norman E. Blank, Richard C. Hartwig
  • Polyurethane coatings for bridge deckings and the like
    Patent number: 4788269
    Abstract: Novel polyurethane formulations especially useful as membranes for the protection of bridge deckings. The polyurethane is prepared by mixing two components, A and B. Component A consists essentially of a low-molecular weight polyol, e.g., glycerol; a poly(oxypropylene) triol; and an elastomer. Component B is a special MDI, either a mix of 4,4'- and 2,4'-isomers of diphenylmethane diisocyanate or a mix of 4,4'-diphenylmethane diisocyanate and its reaction product with a low molecular weight poly(oxypropylene).
    Type: Grant
    Filed: January 7, 1988
    Date of Patent: November 29, 1988
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Cung Vu, Susan P. Buxbaum, Norman E. Blank, Richard C. Hartwig