Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Producing multilayer work or article
Patent
1980-07-25
1983-01-25
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Producing multilayer work or article
264567, 264568, B29C 1704
Patent
active
043702937
ABSTRACT:
The present invention relates to a method and apparatus for the manufacture of oriented plastic film, in particular polyester film, by the inflation in two steps of an extruded seamless tube of plastic material. The present invention also relates to the laminate manufactured in accordance with the method.
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Tetra Pak Developpement SA
Woo Jay H.
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