Device for producing an obliquely oriented film of thermoplastic

Details Device for producing an obliquely oriented film of thermoplastic Device for producing an obliquely oriented film of thermoplastic

1976-01-02

1977-03-01

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Continuous filament forming or film casting means with...

425 72R, 264 95, 264209, B29C 1702, B29D 2304

Patent

active

040099750

ABSTRACT:
A device for producing an obliquely oriented film of thermoplastic synthetic resin comprising an extruder, an annular die for forming the resin extruded from the extruder, a first mandrel, a second mandrel, and drawing rolls for drawing the resinous film passed over the first mandrel and then second mandrel. Said first and second mandrels are rotated in the different directions from each other.

REFERENCES:
patent: 3280429 (1966-10-01), Haley
patent: 3522337 (1970-07-01), Ball
patent: 3577488 (1971-05-01), Bigland
patent: 3661482 (1972-05-01), Brown, Jr.
patent: 3752612 (1973-08-01), Van Duuren

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