Abstract: The invention relates to a process for coating web substrates (10), the substrate (10) being coated over at least part of its area with a first adhesive (12) and thereafter the substrate (10) coated with the first adhesive (12) being coated over at least part of its area with at least one second, further adhesive (14). Provision is made for the first adhesive (12) to be still wet or not yet cured when it is coated with the further adhesive (14).

Abstract: A process for continuous production of self-adhesive articles, wherein a) one polyol component is placed in a container A and essentially one isocyanate component is placed in a container B, b) the polyol component and the isocyanate component are mixed in a mixer, c) the polyurethane composition thus mixed is applied to a backing material which is coated with a pressure-sensitive adhesive composition and moves optionally at constant speed, d) the laminate, comprising first backing material, pressure-sensitive adhesive composition and polyurethane composition, is passed through a heat tunnel, for a time which is less than that required for complete curing of the polyurethane, but sufficient for the curves of storage modulus (G?) and loss modulus (G?) of the polyurethane composition, as a function of curing time, to cross each other, e) the laminate is wound up in a winding station.