US 12,115,708 B2
Apparatus and method for degassing a plasticized material
Guenther Klammer, Aschbach Markt (AT); and Thomas Koepplmayr, Marchtrenk (AT)
Assigned to ENGEL AUSTRIA GmbH, Schwertberg (AT)
Filed by ENGEL AUSTRIA GmbH, Schwertberg (AT)
Filed on Apr. 6, 2022, as Appl. No. 17/714,358.
Claims priority of application No. A 50251/2021 (AT), filed on Apr. 7, 2021.
Prior Publication US 2022/0324146 A1, Oct. 13, 2022
Int. Cl. B29C 45/63 (2006.01); B29B 7/42 (2006.01); B29B 7/48 (2006.01); B29B 7/84 (2006.01)
CPC B29C 45/63 (2013.01) [B29B 7/426 (2013.01); B29B 7/483 (2013.01); B29B 7/847 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An apparatus for degassing a plasticizable material, comprising:
at least one essentially vertical passage having a first inlet opening for a feed of the material in a plasticized state;
a plurality of substantially parallelly arranged vertical partial passages downstream of the at least one essentially vertical passage in a flow direction of the plasticized material so that a material flow flowing through the at least one essentially vertical passage is split up into partial flows by the vertical partial passages,
wherein the vertical partial passages open directly into a free space such that the plasticized material of the partial flows free-falls vertically from the partial passages into the free space, the free space having a vertical dimension which allows strands of the plasticized material to enlarge during free-fall such that gas dissolved in the plasticized material is released in the free space; and
a feed device having a second inlet opening, wherein the second inlet opening is provided in a region of the free space, and the feed device is configured to feed at least one additive or a further plasticizable material to the plasticized material via the second inlet opening,
wherein at least one of the partial passages has a taper.