Method for the manufacture of a foamed extrudate
AssigneePromix Solutions AG
InventorsChristian Schlummer, Christoph Willa, Rolf Heusser
Life of this patent
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Abstract
A method for producing a foamed extrudate comprises a device containing a main melting device and an auxiliary melting device. A first melt is generated in the main melting device, a second melt is generated in the auxiliary melting device from a meltable starting material. At least one reactive additive is added to the meltable starting material, wherein the at least one reactive additive being selected from the group consisting of a chemical blowing agent and an active nucleating agent is mixed in the auxiliary melting device with the second melt, so that an additive-containing second melt is obtained in the auxiliary melting device which is added to the first melt.
Claims16
A method for producing a foamed extrudate, comprising a main melting device and an auxiliary melting device, wherein a first melt is generated in the main melting device, wherein a second melt is generated in the auxiliary melting device from a meltable starting material, wherein at least one reactive additive is added to the meltable starting material, wherein the at least one reactive additive is selected from the group consisting of a chemical blowing agent and an active nucleating agent or wherein the reactive additive is contained in the meltable starting material, wherein the meltable starting material and the reactive additive are melted in the auxiliary melting device to form the second melt, so that an additive-containing second melt containing the reactive additive is obtained in the auxiliary melting device, which is added to the first melt produced in the main melting device.
Dependencies are inferred from the claim text.