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    Planetary roller extruder with a degassing section
    3.
    发明授权
    Planetary roller extruder with a degassing section 有权

    公开(公告)号：US11613060B2

    公开(公告)日：2023-03-28

    申请号：US16560614

    申请日：2019-09-04

    Applicant: Entex Rust & Mitschke GmbH

    Inventor： Harald Rust

    IPC: B29C48/76 ,  B29C48/655 ,  B29C48/44 ,  B29C48/285 ,  B29B7/48 ,  B29B7/74 ,  B29B7/84 ,  B29C48/435 ,  B29C48/25 ,  B29C48/68 ,  B29C48/685 ,  B29C48/80 ,  B29C48/875

    Abstract: A planetary extruder for producing and processing polymers includes a degassing section. The extruder includes a housing and a bushing arranged therein. The bushing has an internal toothing with a pitch diameter and a root circle. An externally toothed central spindle is arranged within the housing. Planetary spindles rotate about the central spindle between the central spindle and the bushing. A heat transfer fluid is guided through fluid channels which extend helically along an outer surface of the bushing and guide the heat transfer fluid axially. A degassing opening is provided to which a negative pressure is applied for degassing. A minimum radial thickness (t) of the bushing between the root circle of the internal toothing on an inside of the bushing and a bottom of the fluid channels on an outside of the bushing is selected based on the pitch diameter (d) of the internal toothing.

    Feeder module in planetary roller extruder design
    5.
    发明授权
    Feeder module in planetary roller extruder design 有权

    公开(公告)号：US11485298B2

    公开(公告)日：2022-11-01

    申请号：US16462217

    申请日：2018-07-03

    Applicant: Entex Rust & Mitschke GmbH

    Inventor： Harald Rust

    IPC: B29C48/655 ,  B60R13/08 ,  B29C48/44 ,  B29C48/285 ,  B29B7/48 ,  B29B7/74 ,  B29B7/84 ,  B29C48/435 ,  B29C48/60 ,  B60N3/04

    Abstract: A planetary roller extruder section forms a feed part of an extruder. The planetary roller extruder has an internally toothed housing and an externally toothed central spindle disposed centrally within and at a distance from the housing. Planetary spindles are arranged to rotate in a void between the central spindle and the housing. Each planetary spindle has an external toothing meshing with both the housing and the central spindle. At least one planetary spindle has two axially spaced areas with less than a full set of teeth. Those axially spaced areas include a first area having a first number of teeth and a second area having a second number of teeth. The second number of teeth is less than a full set of teeth and more than the first number of teeth.

    Method for Producing Thermally Crosslinkable Polymers in a Planetary Roller Extruder
    7.
    发明申请
    Method for Producing Thermally Crosslinkable Polymers in a Planetary Roller Extruder 审中-公开

    公开(公告)号：US20200055214A1

    公开(公告)日：2020-02-20

    申请号：US16487928

    申请日：2018-02-21

    Applicant: Entex Rust & Mitschke GmbH

    Inventor： Harald Rust ,  Klaus Massow

    IPC: B29C35/04 ,  B29C48/00 ,  B29C48/14 ,  B29C48/25 ,  B29C48/29 ,  B29C48/35 ,  B29C48/76

    Abstract: A method for producing thermally crosslinkable polymers in a planetary roller extruder is presented. The planetary roller extruder has a filling part and a compounding part made of a roller cylinder region that comprises at least two, preferably at least three coupled roller cylinders, planetary spindles of which are driven by a common central spindle. The polymers are supplied in a plasticized state. The filling part is supplied with a vacuum. The flow temperatures of the central spindle and the at least two roller cylinders under a vacuum are set such that the polymers to be degassed remain in the plasticized state. One or more liquids, such as thermal crosslinkers, crosslinking accelerators, dye solutions, or dye dispersions, are metered to the plasticized polymers downstream of the vacuum degassing, preferably in a continuous manner. Finally, the resulting mixture is directly supplied to a coating assembly.

    Feeder Module in Planetary Roller Extruder Design
    8.
    发明申请
    Feeder Module in Planetary Roller Extruder Design 审中-公开

    公开(公告)号：US20190329450A1

    公开(公告)日：2019-10-31

    申请号：US16462217

    申请日：2018-07-03

    Applicant: Entex Rust & Mitschke GmbH

    Inventor： Harald Rust

    IPC: B29B7/48 ,  B29B7/74 ,  B29B7/84 ,  B29C48/285 ,  B29C48/44 ,  B29C48/59 ,  B29C48/655

    Abstract: A planetary roller extruder section forms a feed part of an extruder. The planetary roller extruder has an internally toothed housing and an externally toothed central spindle disposed centrally within and at a distance from the housing. Planetary spindles are arranged to rotate in a void between the central spindle and the housing. Each planetary spindle has an external toothing meshing with both the housing and the central spindle. At least one planetary spindle has two axially spaced areas with less than a full set of teeth. Those axially spaced areas include a first area having a first number of teeth and a second area having a second number of teeth. The second number of teeth is less than a full set of teeth and more than the first number of teeth.

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