C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/4116, 400/64
C08F 10/02 (2006.01) B29C 47/00 (2006.01) B29C 47/36 (2006.01) C08J 5/18 (2006.01) C08K 5/14 (2006.01) C08K 5/5425 (2006.01) C08L 23/04 (2006.01)
Patent
CA 2019164
F4825L METHOD FOR IMPROVING THE PROCESSING CHARACTERISTICS OF POLYETHYLENE BLENDS ABSTRACT OF THE DISCLOSURE A method for improving the processing characteristics of a polyethylene blend comprised of at least two polyethylene components having at least one dissimilar rheological property. The method comprises the steps of (a) establishing a functional relationship between free radical generator dosage and a rheological property for at least one polyethylene component of the polyethylene blend; (b) determining a free radical generator dosage from said relationship for use with at least one polyethylene component, said dosage level sufficient to enable the polyethylene component so treated to exhibit a rheological property substantially similar to that of all components present in the blend; (c) treating at least one polyethylene component at the dosage of free radical generator determined in step (b); and (d) blending the polyethylene component in melt form. A process for the extrusion of films from blends of polyethylenes is also provided.
Anzini David J.
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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