Patent ID: 8702892

Claim:
A method of bonding two substrates S1 and S2 by means of adhesives, comprising: (i) treating a surface of the substrate S1 with an air-plasma at atmospheric ambient pressure at least in a region to be bonded; (ii) applying an adhesive to the air-plasma-pretreated surface of the substrate S1 or to a surface of the substrate S2; (iii) joining the substrate S2 with the air-plasma-pretreated surface of the substrate S1 within the adhesive's open time; and (iv) curing the adhesive, wherein the substrate S1 is a thermoplastic film comprising at least one copolymer CP of at least two monomers selected from the group consisting of vinyl acetate, vinyl alcohol, styrene, ethylene, propylene, butadiene, esters of (meth)acrylic acid, and mixtures thereof, and in addition to the copolymer CP, at least one chlorosulfonated polyethylene, and the surface of the thermoplastic film is not subjected to further treatments.