B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 43/02 (2006.01) B29D 99/00 (2010.01) B29C 37/00 (2006.01) B29C 43/22 (2006.01) B29C 57/00 (2006.01) B29C 67/00 (2006.01) B29D 23/24 (2006.01) F16L 47/06 (2006.01)
Patent
CA 2147481
In a process of manufacturing shaped elements from synthetic thermoplastics, particularly polyolefins, such as polyethylene and polypropylene, wherein the plastic material is heated to a temperature above its softening tem- perature and is shaped in that state to form the shaped ele- ment and is subsequently cooled to a temperature below its softening temperature, the shaped elements are shaped in a hot state to form intermediate products having a certain oversize over the desired final dimensions and after they have been cooled are caused by a material-compacting pressing operation to assume the desired final dimensions, in which they are dimensionally stable.
Fetherstonhaugh & Co.
Schnallinger Helfried
LandOfFree
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