Process for manufacturing a hollow body and the manufactured body
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United States of America Patent
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Jun 25, 2019
Grant Date -
Feb 25, 2016
app pub date -
Mar 24, 2014
filing date -
Mar 29, 2013
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Abstract
A process for manufacturing a diesel tank or filler pipe by an extrusion-blow molding machine configured to manufacture a gasoline tank or filler pipe. The extrusion-blow molding machine includes a coextrusion head including at least one extruder configured to provide during a first period of time a first material that is a barrier to liquids and/or gases, such that during the first period of time the coextrusion head produces a first multilayer parison from which the gasoline tank or filler pipe can be manufactured. The extruder is further configured to provide during a second period of time a second material distinct from the first material, such that during the second period of time the coextrusion head produces a second multilayer parison from which the diesel tank or filler pipe can be manufactured.
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