Patents Represented by Attorney Michael Doyle

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  • Biodegradable paperboard laminate structure
    Patent number: 5213858
    Abstract: The present invention relates to a biodegradable paperboard-based package for various food products. The package utilizes a novel heat-sealable laminate structure wherein the exterior gloss heat-sealable layer is a degradable polymeric resin material such as a polyvinyl alcohol resin or a starch based low density polyethylene polymer resin. Utilization of the material in a novel fashion accelerates the paperboard substrate's degradative properties and tendencies.
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: May 25, 1993
    Assignee: International Paper
    Inventors: Cynthia L. Tanner, Charles E. Gibbons