Process for extruding and quenching a polymeric film

Details Process for extruding and quenching a polymeric film Process for extruding and quenching a polymeric film

1975-07-28

1977-07-26

Arnold, Donald J.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

264 26, 264176R, 264210R, 264216, B29F 302

Patent

active

040383547

ABSTRACT:
Quenching molten polymeric films, especially polyester films, on casting surfaces by means of a combination of electrostatic and suction pinning.

REFERENCES:
patent: 3154608 (1964-10-01), Aronsen
patent: 3223757 (1965-12-01), Owens et al.
patent: 3374303 (1968-03-01), Metz
patent: 3427686 (1969-02-01), Busby
patent: 3520964 (1970-07-01), Metz
patent: 3820929 (1974-06-01), Busby et al.

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