Lamination process for coatings

Details Lamination process for coatings Lamination process for coatings

B - Operations, Transporting

32

B

B32B 37/24 (2006.01) B05C 5/02 (2006.01)

Patent

CA 2189024

A method of preparing a laminate that includes the steps of (a) introducing a first substrate having first and second surfaces and supported at two or more points into a lamination zone located between two of the support points (the first substrate being unsupported throughout the lamination zone); and (b) introducing a second substrate having first and second surfaces into the lamination zone (the second substrate passing around a lamination bar to position the first surfaces of the substrates in a facing relationship with each other). At least one of the first surfaces is provided with coating which is most preferably a solvent-free polymerization coating. Next, in step (c), the lamination bar is depressed to laminate the second substrate to the first substrate.

Un procédé de préparation d'un stratifié consiste à: (a) introduire un premier substrat possédant des première et seconde surfaces et supporté au niveau d'un ou plusieurs points dans une zone de stratification située entre deux des points de support (le premier substrat n'étant pas supporté dans la zone de stratification); et (b) introduire un second substrat possédant des première et seconde surfaces dans la zone de stratification (le second substrat passant autour d'une barre de stratification pour positionner les premières surfaces des substrats de manière opposée l'une par rapport à l'autre). Au moins une des premières surfaces est pourvue d'un revêtement qui est le revêtement préféré obtenu par polymérisation et exempt de solvant. Ensuite, (c) abaisser la barre de stratification pour stratifier le second substrat sur le premier.

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