B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/733
B29C 47/60 (2006.01) B29C 47/00 (2006.01)
Patent
CA 1161232
12646 AN APPARATUS AND METHOD FOR EXTRUDING ETHYLENE POLYMERS ABSTRACT OF THE DISCLOSURE A novel extruder screw having at least three segments wherein the pitch remains constant in each segment and changes abruptly from one segment to the following segment and wherein the pitch ratio divided by the depth ratio is greater than 2/3.
389146
Burnett Archibald L.
Miller John C.
Hopley William G.
Union Carbide Corporation
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