Device for degassing of a two-component multiphase polymer-monomer material and use thereof in a degassing extruder
AssigneeRohm Co., Ltd.
InventorsThomas Wick, Jan Müller, Olaf Pickenäcker
Life of this patent
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Abstract
A device can be used for the degassing of a two-component multiphase polymer-monomer material. A corresponding degassing extruder contains the degassing device. The device for degassing contains at least one nozzle part having a convergent geometry, at least one constant part, and at least one diffusor part having a divergent geometry. The diffusor part contains at least three zones each having a divergent geometry, and the opening angles of the zones are specifically adapted in order to improve the separation of components of the polymer material. A process for degassing a polymer material uses the degassing device.
Claims15
A device for degassing a polymer material, comprising:
- at least one nozzle part having a convergent geometry,
- at least one constant part, and
- at least one diffusor part having a divergent geometry,
- wherein the at least one diffusor part comprises
- a first zone Z1, having a first length L1 and a first opening angle A1,
- a second zone Z2, having a second length L2 and a second opening angle A2, and
- a third zone Z3, having a third length L3 and a third opening angle A3,
- wherein each of the first zone Z1, the second zone Z2, and the third zone Z3 exhibit a divergent geometry, and wherein the following applies:
- A
-
- 1
- <
- A
-
- 2
- <
- A
-
- 3
- ,
- wherein for a ratio of length and opening angle in the at least one diffusor part, the following applies
- L
-
- 1
- /
- A
-
- 1
- >
- L
-
- 2
- /
- A
-
- 2
- >
- L
-
- 3
- /
- A
- 3.
Dependencies are inferred from the claim text.