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US 12,570,820 B2Granted
Foamed polymeric composition
Assignee3M Innovative Properties Company
InventorsThomas Apeldorn, Michael Kempf, Jeffrey P. Kalish
Life of this patent
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Abstract
The present disclosure relates to an extrusion apparatus comprising: a) a planetary roller extruder; b) a melt pump arranged downstream of the extruder; c) optionally, a fluid feeding equipment; d) a static cooling mixer equipment arranged downstream of the melt pump; e) a foaming equipment arranged downstream of the static cooling mixer equipment. The present disclosure also relates to a process of manufacturing a foamed polymeric composition and uses thereof.
Claims5
An extrusion apparatus comprising:
- a) a planetary roller extruder;
- b) a melt pump arranged downstream of the planetary roller extruder;
- c) optionally, a fluid feeding equipment;
- d) a two-part static cooling mixer equipment arranged downstream of the melt pump, the two-part static cooling mixer equipment comprised of:
- a static mixer having mixing elements that are either electrically heated or not actively temperature controlled;
- and
- a cooling mixer directly arranged downstream of the static mixer and having mixing elements that are hollow and temperature controlled by oil;
- and
- e) a foaming equipment arranged downstream of the static cooling mixer equipment.
6 more elements
Dependencies are inferred from the claim text.