Apparatus for coating thermoplastic film

Details Apparatus for coating thermoplastic film Apparatus for coating thermoplastic film

1979-06-11

1981-02-03

Thurlow, Jeffery R.

Plastic article or earthenware shaping or treating: apparatus

Immersed shaping orifice discharging directly into liquid...

Additional downstream means for treating product by fluid

15624412, 264514, 264173, 425 72R, 425 95, 425104, 425147, 427173, B05C 300, B05C 904

Patent

active

042485762

ABSTRACT:
A method and an apparatus for effecting in a continuous manner the three operations of extruding, biaxially stretching and surface coating a seamless tubing of thermoplastic resin such as polyethylene, polypropylene, polyethylene terephthalate, etc. The coating material in a molten state is applied to the tubing while a formative state and prior stretching. A coated film is obtained which is dimensionally stable and is useful for food packaging.

REFERENCES:
patent: 3160917 (1964-12-01), Berggren et al.
patent: 3160918 (1964-12-01), Berggren et al.
patent: 3170011 (1965-02-01), Cheney et al.
patent: 3193547 (1965-07-01), Schott, Jr.
patent: 3576658 (1971-04-01), Notomi et al.
patent: 3709642 (1973-01-01), Stannard
patent: 3822333 (1974-07-01), Haruta et al.

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