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US 2014/0209545 A1Published application
Apparatus and Method for Purifying Thermoplastic Polymers
AssigneeKrones AG
InventorsThomas Friedlaender, Klaus-Karl Wasmuht, Jörg Zacharias, Stephan Mayr
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Abstract
A method for purifying thermoplastic polymers, comprising a step of filtering a polymer melt by way of a filter means, characterized in that said filter means is at least temporarily heated to a temperature which is higher than that of the polymer melt.
Claims10
1-6. (canceled)
A method for purifying thermoplastic polymers, comprising
- polymer melt by way of a filter means, wherein the filter means is heated at least temporarily to a temperature, which is higher than that of the polymer melt, and
- the heating of the filter means to a temperature, which is higher than that of the polymer melt, is performed only over a limited time period.
Dependencies are inferred from the claim text.