Method and apparatus for making film

Details Method and apparatus for making film Method and apparatus for making film

1974-08-12

1979-11-27

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264565, 425 72R, 4253261, B29D 2304, B29F 308

Patent

active

041761553

ABSTRACT:
The present invention is concerned with the art of manufacturing film from synthetic thermoplastic resinous materials, and more particularly relates to an improved method and apparatus for the manufacture of thermoplastic resinous film in tubular form.

REFERENCES:
patent: 2987767 (1961-06-01), Berry et al.
patent: 3170011 (1965-02-01), Cheney et al.
patent: 3329999 (1967-07-01), Cook
patent: 3331901 (1967-07-01), Thomas

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