Process for eliminating surface melt fracture during extrusion o

Details Process for eliminating surface melt fracture during extrusion o Process for eliminating surface melt fracture during extrusion o

1984-07-03

1985-11-19

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Utilizing special inert gaseous atmosphere or flushing mold...

264169, 264176R, 264564, 264211, 425378R, 425379R, 425380, 425461, 425467, B29F 304

Patent

active

045541205

ABSTRACT:
A process and apparatus as provided for substantially eliminating surface melt fracture during extrusion of a thermoplastic polymer such as a molten narrow molecular weight distribution, linear, ethylene copolymer, by using a die having a die land region defining opposing surfaces at least one of which is fabricated from an alloy containing 5 to 95 parts by weight zinc and 95 to 5 parts by weight of copper.

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