Adhesion promoter to the material-locking connection of a polymeric organic material with an inorganic substrate and method of material bond connection of a polymeric organic material with an inorganic substrate by using the bonding agent

Adhesion promoter to the material-locking connection of a polymeric organic material with an inorganic substrate, wherein the adhesion promoter comprises protected isocyanate compounds which are represented by the following general formula: R wherein R