Apparatus and method for extruding ethylene polymers

Details Apparatus and method for extruding ethylene polymers Apparatus and method for extruding ethylene polymers

1980-11-12

1982-05-11

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Miscellaneous

264176R, 366 88, 366 89, 425208, 526124, 526125, B29F 306

Patent

active

043293131

ABSTRACT:
A novel extruder screw having at least three segments wherein the pitch remains constant in each segment and changes abruptly from one segment to the following segment and wherein the pitch ratio divided by the depth ratio is greater than 2/3.

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