| 摘要 |
<p>Laminating adhesive composition comprises a reaction product which contains isocyanate groups, and is obtained from the reaction of a) crystalline polyester polyol (P1) which is solid at room temperature, and has a molecular weight of 1500-9000 g/mol and a softening point of more than 100[deg] C; and b) polyester polyol (P2) which is solid at room temperature, and has molecular weight of 10000-50000 g/mol and softening point of more than 130[deg] C, with at least one polyisocyanate. Laminating adhesive composition comprises a reaction product which contains isocyanate groups and is obtained from the reaction of a) at least one crystalline polyester polyol (P1) which is solid at room temperature and has a molecular weight of 1500-9000 g/mol and a softening point of >= 100[deg] C; and b) at least one polyester polyol (P2) which is solid at room temperature and has a molecular weight of 10000-50000 g/mol and a softening point of more than 130[deg] C; c) optionally at least one polyol (P3); with d) at least one polyisocyanate (P4). The polyisocyanate (P4) is used in a stoichiometric excess in relation to the polyols (P1) and (P2) and (P3). An independent claim is included for method of laminating a support material (S) with a polymeric film (KF), involving i) applying a melted laminating adhesive composition (K) to the polymeric film; ii) heating the film; iii) contacting the adhesive composition on the film with the support material; or a1) applying a melted laminating adhesive composition to a support material; b1) heating a polymeric film; and c1) contacting the laminating adhesive composition on the support material with the polymeric film.</p> |
