SINGLE-SCREW EXTRUDER WITH GROOVED INFEED SYSTEM
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United States of America Patent
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Mar 26, 2015
app pub date -
Apr 18, 2013
filing date -
Apr 21, 2012
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Abstract
A single-screw extruder includes a grooved infeed system, a cylinder, and an extruder screw rotatably supported in the cylinder. The extruder screw has a softening zone, a main plasticizing zone, and a post-plasticizing zone and is at least double-threaded in the area of the main plasticizing zone. The cylinder at least partially has at least one groove extending substantially in the longitudinal direction in the region of the main plasticizing zone.
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