Method for the production of thermoplastic hollow articles
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United States of America Patent
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Oct 17, 2013
app pub date -
Mar 15, 2011
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Apr 27, 2010
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Abstract
The invention relates to a method for producing thermoplastic hollow articles, comprising: producing web-shaped or plate-shaped parisons from melted plastic in such a way that the parisons receive a specific wall thickness profile; cooling the parisons to obtain dimensionally stable semifinished products that still have the same wall thickness profile; heating the semifinished products and shaping the heated semifinished products into parts of a hollow article; and welding the semifinished products together to obtain a substantially closed hollow article.
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