HOT MELT ADHESIVE COMPOUNDS WITH GOOD ADHESION ON POLAR AND APOLAR SUBSTRATES

摘要

Hot melt adhesive composition comprises: at least one thermoplastic silane grafted poly-alpha -olefin that is solid at 25[deg] C; and at least one reaction product (RP) of a polyisocyanate having an isocyanate-reactive silane, where the isocyanate-reactive silane comprises exactly one group reactive to an isocyanate group, consisting of a hydroxyl-, a mercapto- or an amino-group, where the reaction product has a weight average molecular weight of less than 1500 g/mole. An independent claim is included for a composite body (1) comprising a first substrate (2), which is polyolefin, a hot melt adhesive composition (4) or crosslinked hot melt adhesive composition (5), which is crosslinked using water, and a second substrate (3), which is a polar plastic or metal or glass, where the hot melt adhesive composition or the crosslinked hot melt adhesive composition is arranged between the first and second substrates.