Adjusting outer polymer layer viscosity by cooling in screw...

Details Adjusting outer polymer layer viscosity by cooling in screw... Adjusting outer polymer layer viscosity by cooling in screw...

C - Chemistry, Metallurgy

08

J

18/501

C08J 3/12 (2006.01)

Patent

CA 1047721

ABSTRACT OF THE DISCLOSURE Granular homo- and co-polymerized olefins especially suitable for foil extrusion processing are provided by melting the homo- or copolymers, homogenizing the melt and extruding the polymer while adjusting the volumetric leakage flow in the discharge zone by means of regulating the viscosity of that portion of the outer layer by cooling of the polymerizate which is subject to leakage flow, to a constant value.

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