B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/770
B29C 47/02 (2006.01) B29B 13/06 (2006.01)
Patent
CA 1169618
ABSTRACT OF THE DISCLOSURE A steel pipe is jacketed by concurrent extrusion of an ethylene hose concentric with a copolymer hose serving as an adhesive, the pipe passing through the extruder head at an approxi- mately 10% higher speed. The copolymer is predried, and the pipe is preferably pre-coated with thermosetting resin, such as phenol resin or an epoxy resin.
392069
Glissmann Karl-Heinz
Stucke Walter
Fetherstonhaugh & Co.
Mannesmann Aktiengesellschaft
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