Hot-melt adhesives with longer open time

摘要

Hot melt adhesive composition comprises: at least one thermoplastic, at 25[deg] C solid silane grafted poly-alpha -olefin; and at least one soft resin with a melting point or softening point of -10[deg] C to 40[deg] C. Independent claims are included for: (1) a composite body comprising: a first substrate (S1), which is a polyolefin film, a foam or a fabric; the hot melt adhesive composition or crosslinked hot melt adhesive composition; and a second substrate (S2), where the composition or the crosslinked hot melt adhesive composition are arranged between the first substrate (S1) and second substrate (S2); and (2) a process for producing the composite body, comprising: (i) melting the composition; (ii) applying the molten composition on a polyolefin film (S1); heating the polyolefin film; and (iv) contacting the second substrate (S2) with the molten hot melt adhesive composition.