METHOD FOR THE PRODUCTION OF HOLLOW BODIES FROM THERMOPLASTIC PLASTIC
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Apr 2, 2013
filing date -
Jun 20, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to a method for the production of hollow bodies from thermoplastic plastic. The method comprises the extrusion of at least two sheet-like preforms consisting of thermoplastic plastic, the introduction of the preforms into a preferably multipart molding die with a molding cavity which at least partially defines the contour of the hollow body to be manufactured, and the shaping of the preforms inside the die, using a vacuum and/or gas pressure in the first heat of the material. The method is distinguished in that at least two preforms to be shaped into a hollow body and to be connected are extruded successively, that is to say sequentially, in time and are shaped simultaneously.
First Claim
Other Claims data not available