| 摘要 |
A processor (1) for a molten polymer composition comprises at least one screw (10) rotatably arranged within an enclosure (11) having an inner wall (12) fitting the at least one screw in a portion, at least, of the enclosure; the processor comprises a means (14) for degassing said molten polymer; the means for degassing comprises at least one ram (14) for reciprocating movement for displacement between a first (FP) and a second (SP) position; the ram has a front face (143) shaped in conformity with the inner wall of the enclosure in the fitting portion thereof; the front face of the ram forms part of the inner wall in the fitting portion of the enclosure when the ram is in the first position (FP) and provides an opening (121) of the inner wall when in the second position (SP); the ram has a passage (144) for connecting the opening of the wall with a degassing outlet (16) when in the second position (SP). |
