Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With means applying wave energy or electrical energy...
Patent
1996-05-15
1997-10-14
Stemmer, Daniel
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With means applying wave energy or electrical energy...
15624417, 15624423, 1562726, 156500, 264469, 4251748E, B32B 3130, B29B 1308
Patent
active
056767919
ABSTRACT:
The invention describes a device and a process for producing extrusion-coated laminates. The extrusion device contains an extruder nozzle with nozzle lip, a cooling roller and a contact roller, wherein the cooling roller and the contact roller form a roller gap and the extruder nozzle is directed towards the roller gap. A melt of thermoplastic plastics, which enters the roller gap while forming a coating film and is joined to a substrate film in the roller gap, emerges from the nozzle lip. A device for improving the adhesion of the coating film to the substrate is thus disposed in the region between the extruder nozzle and the roller gap at a slight distance from the film. The device is a corona treatment station which has a discharge electrode at high voltage and an electrically earthed counter-electrode on only one side of the coating film.
REFERENCES:
patent: 3323965 (1967-06-01), Hanle
patent: 3371002 (1968-02-01), Reddeman
patent: 3743830 (1973-07-01), Takahashi et al.
patent: 3865665 (1975-02-01), Masion
patent: 3930923 (1976-01-01), Elliot
patent: 4216000 (1980-08-01), Kofold
patent: 4244894 (1981-01-01), Segransan
patent: 4344104 (1982-08-01), Hubets
patent: 4424549 (1984-01-01), Ensing
patent: 5038036 (1991-08-01), Kouguchi
Kirk-Othmer Encyclopedia of Chemical Technology, Third Edition,pp. 683-696, (1981).
Alusuisse Technology & Management Ltd.
Stemmer Daniel
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