Method for producing an oriented tubular film

Details Method for producing an oriented tubular film Method for producing an oriented tubular film

1979-04-25

1981-04-21

Lawrence, Evan K.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264130, 264134, 264557, 427428, B29D 904

Patent

active

042632528

ABSTRACT:
A method for coating an axially moving tubular form by depositing a coating medium on a surface of the form, and spreading the deposited medium around at least part of the surface in a direction transverse to the movement of the form. The technique is suitable for the deposition of a uniform coating of a flowable medium on to a tubular film-forming substrate--particularly in the production of antistatic polyolefin films.

REFERENCES:
patent: 1796691 (1931-03-01), Jansen
patent: 1871917 (1932-08-01), Rocca
patent: 2022009 (1935-11-01), Rocca
patent: 3036931 (1962-05-01), Kell
patent: 3068516 (1962-12-01), Hofer
patent: 3363530 (1968-01-01), Rice
patent: 3389009 (1968-06-01), McNulty et al.
patent: 3690294 (1972-09-01), Harper
patent: 3819776 (1974-06-01), Robinson et al.

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