Processing extruded thermoplastic polymer

Details Processing extruded thermoplastic polymer Processing extruded thermoplastic polymer

1977-04-06

1978-09-19

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264150, 264159, 264177R, 264237, 264284, 264346, B29D 704

Patent

active

041154959

ABSTRACT:
Method and apparatus for processing extruded thermoplastic material for use in house siding by advancing a hollow extrudate from the die member through cooling and sizing baths followed by stress relieving the extrudate and then cutting the extrudate into separate finished strips for final processing and packing.

REFERENCES:
patent: 2375827 (1945-05-01), Slaughter
patent: 2976567 (1961-03-01), Jones et al.
patent: 3281516 (1966-10-01), Southwick
patent: 3430994 (1969-03-01), Keeler
patent: 3454693 (1969-07-01), Crenshaw
patent: 3555135 (1971-01-01), Paul
patent: 3886250 (1975-05-01), Danko
patent: 3899561 (1975-08-01), Heilmayr

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