Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers
Reexamination Certificate
2005-07-26
2005-07-26
Mulcahy, Peter D. (Department: 1713)
Stock material or miscellaneous articles
Composite
Of addition polymer from unsaturated monomers
C428S500000, C524S232000, C524S318000, C524S322000, C524S394000, C264S176100, C264S211000
Reexamination Certificate
active
06921581
ABSTRACT:
A plastic film comprised of a polymer material, fragrance, and a waxy chemical composition for imparting to the film substantial impermeability to odors. A method for producing such films including the steps of: adding a liquid fragrance to highly porous polymer pellets; adding a waxy chemical composition to the fragrance and polymer; blending the polymer, fragrance, and waxy composition mixture; adding additional polymer to the blended mixture; extruding the resultant composition, thereby forming pellets; mixing the pellets with additional polymer; and forming a film therefrom. A plastic film, produced according to this method, for packaging or for masking unpleasant odors, comprising polyethylene or polypropylene, a fragrance, and a bis fatty-acid amide is also disclosed.
REFERENCES:
patent: 5496865 (1996-03-01), Heese et al.
patent: H2104 (2004-05-01), Ramesh
patent: 1538085 (1979-01-01), None
patent: 2194791 (1988-03-01), None
patent: WO 98/30621 (1998-07-01), None
Van Gelder David
Voss Sharon
Mulcahy Peter D.
Nixon & Vanderhye P.C.
Sakit Ltd.
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