Method and device for continuously modifying a polymer melt made of non-extracted polyamide 6 with one or more additives
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United States of America Patent
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Jan 26, 2021
Grant Date -
Sep 6, 2018
app pub date -
Jul 27, 2016
filing date -
Oct 1, 2015
priority date (Note) -
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Abstract
A method and a device for admixing additives into a polymer melt made of non-extracted polyamide 6 are disclosed. The polymer melt is combined in a highly concentrated form with an additional melt flow without additives and mixed therewith. Additionally, a part of the melt is branched off from a main melt flow (3), wherein the sub-melt flow (4) is transported into a dispersing device (5) and is supplied and mixed with one or more additives (12). The side-melt flow (4) with additives is then returned into the main melt flow (3), mixed with the main melt flow, and subsequently supplied for further processing.
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