Patents Represented by Attorney Willian D. Lee, Jr.

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  • High strength coextruded film for chub packaging
    Patent number: 4937112
    Abstract: A multilayer hot blown film useful in chub packaging comprises a first outer layer of a heat-sealable polymeric material; a first interior layer of a high molecular weight polymeric material; a second interior layer of a polyamide; and a second outer layer of a self-weldable polymeric material.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: June 26, 1990
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Henry G. Schirmer