Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – With prevention of equipment fouling accumulations or deposits
Patent
1994-03-11
1995-10-17
Thurlow, Jeffery R.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
With prevention of equipment fouling accumulations or deposits
264143, 264323, 26421123, 425308, 425382R, 425461, B29C 4712
Patent
active
054588367
ABSTRACT:
An improved die, containing one or more orifices, for the extrusion of polymers is disclosed wherein the orifices are flared at the polymer discharge end, and the orifices have certain relative dimensions and configurations. The dies are useful for producing items such as films, shaped profiles, sheets, fibers, strands, etc. Also disclosed are a process for using the die, and an extrusion apparatus containing such a die.
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Rakestraw Julie A.
Waggoner Marion G.
E. I. Du Pont de Nemours and Company
Thurlow Jeffery R.
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