Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Reexamination Certificate
2007-06-08
2010-12-07
Del Sole, Joseph S (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
C264S211180, C264S205000, C264S17800F
Reexamination Certificate
active
07846363
ABSTRACT:
A process for preparing ultra-high molecular weight poly(alpha-olefin) (UHMWPO) multi-filament yarns having improved tensile properties at higher productivity. The process includes drawing a solution yarn, then drawing a gel yarn and then drawing a dry yarn continuously in sequence to form a partially oriented yarn, winding up the partially oriented yarn, unrolling the yarn, drawing the partially oriented yarn to form a highly oriented yarn, cooling the highly oriented yarn under tension and winding up the highly oriented yarn.
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Arnett Charles R.
Hermes John E.
Tam Thomas Y-T.
Young John A.
Zhou Qiang
Brown, II David N
Del Sole Joseph S
Honeywell International , Inc.
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