Patents by Inventor Stephen Imfeld

Stephen Imfeld has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High impact strength film grade polymeric composition
    Patent number: 5426153
    Abstract: A polymeric composition including a first copolymer of ethylene and a higher .alpha.-olefin having 3 to 12 carbon atoms, said first copolymer having a density of between 0.880 g/cc. and about 0.949 g/cc. and a melt index of between about 0.01 and about 100, present in the polymeric composition in a concentration of between about 60% and about 95% by weight; and a second copolymer of ethylene-vinyl acetate having a vinyl acetate content of at least about 28% by weight, based on the total weight of the ethylene-vinyl acetate copolymer, said second copolymer present in a concentration of between about 5% and about 40% by weight, said percentages by weight based on the total weight of the polymeric composition. This polymeric composition is particularly useful when fabricated into a film, which has excellent impact strength.
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: June 20, 1995
    Assignee: Quantum Chemical Corporation
    Inventors: Francis M. Mirabella, Stephen Imfeld, Michael L. Opacich, Edward M. Kajiwara