SEMIFINISHED PRODUCT FOR PRODUCING A PLASTIC TUBE AND TUBE OF PLASTIC PRODUCED FROM IT
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United States of America Patent
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Issued Date -
Apr 23, 2009
app pub date -
Nov 23, 2006
filing date -
Dec 20, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A description is given of a semifinished product (20) for producing plastic tubes comprising a substantially cylindrical body (1), the one longitudinal end of which goes over into a head part (2) with a closable squeezing-out opening and the other longitudinal end (5) of which is formed in an open manner. The semifinished product (20) is produced in an extrusion blow-moulding process, in which an extruded parison of plastic comprising one or more layers is inflated in a blow mould in conformity with the cavity of the blow mould. The squeezing-out opening provided in the head part (2) is provided with a one-way closure (27), which has been created during the inflation process within the blow mould. A plastic tube comprising an elongated body (1) which is sealed by a pinch/weld portion (6) is also disclosed.
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