Patents Assigned to Guard Polymer & Chemical, Inc.
  • Making a sealing composition and a sealing composition for roofs and the like
    Patent number: 3980597
    Abstract: A sealing composition for roofs, floors, decks and other surfaces is composed of a polyurethane composition containing bituminous material which has been dehydrated and chemically neutralized to avoid the formation primarily of a gel and to preclude preliminary curing of the polyurethane prepolymer. A self-supporting film of similar composition is also disclosed.
    Type: Grant
    Filed: May 24, 1971
    Date of Patent: September 14, 1976
    Assignee: Guard Polymer & Chemical, Inc.
    Inventor: Musa Shihadeh