Hot melt adhesive composition has good adhesion to polar and nonpolar substrates

摘要

1. The hot melt adhesive composition, soderzhaschayaa) at least one thermoplastic silane-grafted poly-α-olefin (P), which is a solid at 25 ° C; b) at least one reaction product (RP) of the polyisocyanate and isocyanate-reactive silane (S); which is capable of reacting with an isocyanate silane (S) contains only one isocyanate-reactive group selected from the group consisting of a hydroxyl group, a mercapto group and an amino group and wherein said reaction product has a molecular m Assa mMENU 1500 g / mol.2. Hot melt adhesive composition according to claim 1, characterized in that the silane-grafted poly-α-olefin (P) is comprised between 60 ° C softening point to 160 ° C, in particular from 80 ° C to 140 ° C, preferably from 90 ° C to 120 ° C.3. Hot melt adhesive composition according to claims 1 or 2, characterized in that the poly-α-olefin (P) is a silane grafted silane grafted copolymer or terpolymer, composed of at least one monomer selected from the group consisting of ethylene , propylene, butylene and izobutilena.4. Hot melt adhesive composition according to claim 1 or 2, characterized in that the poly-α-olefin (P) is a silane grafted silane grafted atactic poly-α-olefin (APAO) .5. Hot melt adhesive composition according to claim 1 or 2, characterized in that the poly-α-olefin (P) obtained by grafting silanes onto poly-α-olefin which, in turn, prepared by the Ziegler-Natta.6. Hot melt adhesive composition according to claim 1 or 2, characterized in that said hot melt adhesive composition comprises at least two different grafted