Patents Assigned to Polymer Projections, Inc.
  • Container comprising a polysulfone resin layer with a cellular resin core
    Patent number: 4507338
    Abstract: This invention relates to the use of two or more polymeric materials combined together forming a composite, layered structure for use in microwave oven cookware or similar types of application.
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: March 26, 1985
    Assignee: Polymer Projections, Inc.
    Inventor: Richard A. Freundlich