Method of manufacturing profiles

Details Method of manufacturing profiles Method of manufacturing profiles

B - Operations, Transporting

29

C

B29C 47/36 (2006.01) B29C 47/04 (2006.01) B29C 47/58 (2006.01)

Patent

CA 2069357

ABSTRACT OF THE DISCLOSURE A method for manufacturing profiles from molten polymer materials by way of extrusion wherein the melt stream of second polymer material is channelled in the direction of flow into the main melt stream before the actual shaping process takes place and wherein the united melt streams are shaped in the extrusion die to form a profile extrudate which can be cut to length and removed after cooling. The degree to which the second polymer material dilates in the main melt stream is controlled by defining the distance between the injection point and the point at which the united melt streams enter the extrusion die and/or by defining the cross-sectional dimensions of the clear injection aperture for the second polymer material.

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