| 摘要 |
The invention relates to a process for the production of a foam composite element, comprising the steps of providing a facing, applying adhesion promoter to the facing, and applying a foam layer comprising polyurethane and/or polyisocyanurate to the adhesion promoter, characterised in that the adhesion promoter comprises allophanate-modified polyisocyanate. The invention relates further to the use of allophanate-modified polyisocyanate as adhesion promoter in the production of foam composite elements, and to foam composite elements obtained by the process according to the invention. |
