EP1516720

• BASF Aktiengesellschaftsince Feb 4, 2005

Laminate (IA) comprises (i) a first covering layer, (ii) an adhesion promoter layer containing polyurethane with a density of 400-1200 g/l, (iii) a foam layer containing polyisocyanurate with a density of 20-300 g/l, (iv) optionally a second adhesion promoter layer containing polyurethane with a density of 400-1200 g/l and thickness of 50-500 mu m and (v) a second covering layer. Independent claims are also included for the following: (1) production of laminate (IB) comprising (i) a first covering layer, (ii) a reactive adhesion promoter layer containing polyurethane with a density of 400-1200 g/l, (iii) a foam layer containing polyisocyanurate with a density of 30-100 g/l, (iv) optionally a second adhesion promoter layer containing polyurethane with a density of 400-1200 g/l and (v) a second covering layer; (2) use of a polyurethane adhesion promoter to improve the adhesion between layers of a laminate containing a polyisocyanurate foam and covering layers.