B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/514, 190/26.1
B29D 23/03 (1980.01)
Patent
CA 1120221
ABSTRACT A multi-layer blow oriented container is produced by providing a multi-layer tubular structure periodically heat sealing opposite sides of the tubular structure to one another at preselected locations along the length thereof, severing sections of the tubular form to provide a multiplicity of generally cylindrical preforms heating and blow orienting the cylindrical preform into a desired configuration. In the preferred embodiment the tubular structure contains a crosslinkable layer which is crosslinked after heat sealing to Provide crosslinked heat seal areas.
318915
Smart & Biggar
W.r. Grace & Co.,-Conn.
LandOfFree
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