Patents by Inventor Susan G. Ehrlich

Susan G. Ehrlich 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).

  • Aqueous-based waterproofing primer system and method
    Patent number: 5270373
    Abstract: The present invention provides a waterproofing system and method in which salt is used to prevent re-emulsification of an aqueous-based emulsion polymer primer composition which has been applied to a water penetrable building surface, whereby the bond between the building structure and a subsequently applied waterproofing membrane remains strong and durable.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: December 14, 1993
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Robert A. Wiercinski, Robert F. Jenkins, James M. Gaidis, Susan G. Ehrlich
  • Waterproofing system for water-penetrable construction surfaces
    Patent number: 5145748
    Abstract: Disclosed are compositions and methods of reducing water penetration through civil engineering structures which methods comprise applying to the structures a waterproofing agent pretreatment composition including SBR latex, SBS latex, natural rubber latex, polybutadiene latex, polychloroprene latex, polyvinyl acetate latex, nitrile latex, or combinations thereof, and optionally may include various freezing point depressing agents to enable use of the compositions and methods at or below 25.degree. F. Also disclosed are packages including the latex-containing waterproofing agent pretreatment compositions and waterproofing agents.
    Type: Grant
    Filed: February 16, 1990
    Date of Patent: September 8, 1992
    Assignee: W.R. Grace & Co. -Conn.
    Inventors: James M. Gaidis, Robert A. Wiercinski, Susan G. Ehrlich