Process to remove a layer of thermoplastic material deposited on

Details Process to remove a layer of thermoplastic material deposited on Process to remove a layer of thermoplastic material deposited on

1992-03-02

1993-12-28

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Utilizing special inert gaseous atmosphere or flushing mold...

264139, 264500, 427271, 427348, 156268, 156497, B05D 304

Patent

active

052737012

ABSTRACT:
To remove a layer of thermoplastic material, particularly of polyethylene, adhering to a substrate, particularly a strip of aluminum, there is directed against a region of the layer of thermoplastic material (2) a shaped jet (10) of hot inert gas, containing for example principally helium, to melt the thermoplastic material and the jet is displaced relative to the coated substrate to push back (11) the melted thermoplastic material. The gas or the gaseous between 300.degree. C. and 700.degree. C., by an electric resistance (20), adjacent the ejection nozzle (4).

REFERENCES:
patent: 2396946 (1946-03-01), Grupe
patent: 3924794 (1975-12-01), Allen et al.
patent: 4416919 (1983-11-01), Beck
patent: 4834826 (1989-05-01), Abe et al.
patent: 4975303 (1990-12-01), McKinnon

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