Device for degassing and filtering plastic melts

Details Device for degassing and filtering plastic melts Device for degassing and filtering plastic melts

2011-01-11

2011-01-11

Soohoo, Tony G (Department: 1797)

Agitating

Rubber or heavy plastic working

With specified vent means

C366S079000, C366S087000, C366S088000, C366S090000, C425S203000, C425S204000, C425S208000, C425S209000, C096S216000, C096S217000

Reexamination Certificate

active

07866876

ABSTRACT:
The invention relates to a device for the extrusion of thermoplastic synthetic material featuring an extruder screw (2) which is mounted on a housing (1) including a plasticizing section (P) at the inlet side, a degassing section which is mounted upstream on a discharge section (A) and a conveying outlet (3) operating in the opposite direction which is located between the plasticizing section (P) and the degassing section (E). A flow channel (5) that contains a melt filter (4) is bridged over by at least one of the conveying outlets (3) in the opposite direction. To create favorable production conditions, the extruder screw (2) forms a similar conveying outlet (7) operating in the same direction between the conveying outlet (3) in the opposite direction and the downstream port (6) of the flow channel (5). The housing (1) has at least one degassing vent (8) at the transition area of the conveying outlet (3) operating in the opposite direction and the conveying outlet (7) operating in the same direction.

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