Method and apparatus for continuously producing resin films and

Details Method and apparatus for continuously producing resin films and Method and apparatus for continuously producing resin films and

1990-03-14

1991-12-24

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264216, 264345, 425 74, 425 75, 425224, B29C 4150

Patent

active

050750640

ABSTRACT:
For continuous production of a resin film having a plain surface, a resin solution cast in film form over an endless belt is pre-hardened by a gas stream supplied for flow in a direction generally parallel to the surface of the endless belt, and then a jet of gas is blown in the direction of movement of the endless belt whereby the resin is hardened. In the process for resin film production wherein the resin film is cast over the endless belt and then pre-hardened by a parallel gas stream, the cast film being then hardened by a jet of gas, the installation for production is divided by partitions so as to enable various stages to be operated independently.

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patent: 4342718 (1982-08-01), Caratsch
patent: 4473523 (1984-09-01), Sasaki et al.
patent: 4664859 (1987-05-01), Knoop

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