Patents Represented by Attorney Stephen Hensley

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  • Process for preparing polyamide-imide foam
    Patent number: 4960549
    Abstract: This invention relates to preparation of polyamide-imide foam by extruding foamable composition comprising polyamide-imide and volatiles into a confined expansion zone, expanding the composition therein and cooling the result. The resulting foams are essentially open-celled and exhibit good strength, insulating properties and other desirable features.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: October 2, 1990
    Assignee: Amoco Corporation
    Inventors: Gary T. Brooks, Brian C. Connolly, Robert Riley