Extruded, surface-textured, synthetic resin strands of...

Details Extruded, surface-textured, synthetic resin strands of... Extruded, surface-textured, synthetic resin strands of...

B - Operations, Transporting

29

C

18/777, 18/787

B29C 59/02 (2006.01) B29C 43/22 (2006.01)

Patent

CA 1142724

ABSTRACT OF THE DISCLOSURE What is disclosed are an extruded hollow strand of thermoplastic synthetic resin, particularly an acrylic glass, provided with a textured surface which is variable in the direction of extrusion, as well as a method for the preparation of such a textured strand by extruding a thermoplastic synthetic resin through an extrusion nozzle provided with one or more core pieces, introducing the extruded hollow strand into a calibration or forming apparatus together with a flexible band provided with a negative surface structure, cooling the hollow strand --in contact with the flexible band-- beneath the softening point of the synthetic resin within the calibration apparatus, and then separating the band and strand upon exiting from the calibration apparatus.

346165

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