| 摘要 |
<p>Use of one-component aqueous polyurethane dispersion composition (A), as primer for the adhesion of plastic foil by means of an aqueous one-component polyurethane dispersion adhesive (B), where: (A) exhibits a polyurethane (P1)-, carbodiimide- and/or carboxyl group; (B) exhibits polyurethane (P2), carbodiimide group and/or carboxyl group; (A) and (B) are connected with each other, by heating at greater than 50[deg]C and via polyaddition reaction. Independent claims are included for: (1) a primer coated plastic foil, obtained by applying and drying off (A) on the plastic foil; (2) a composite body comprising the plastic foil; a reacted primer (obtained from (A)), a reacted adhesive (obtained from (B)), and a substrate, where the reacted primer is arranged between the plastic film and the reacted adhesive, and the reacted adhesive is arranged between the reacted primer and substrate; and (3) a method for the preparation of the composite material comprising (i) applying (A) on the plastic foil, (ii) drying off of (A) to form dried polyurethane dispersion composition (A-1), (iii) applying (B) on the substrate, (iv) drying off of (B) to form dried polyurethane dispersion adhesive (B-1), (v) heating the plastic foil with (A-1) and (vi) contacting (A-1) with (B-1), where the steps (iv) and (v) takes place successively or simultaneously.</p> |
