| abstract |
a) 1 bis 10 Gew.% eines Aminoalkyltrialkoxysilanes, vorzugsweise y-Aminopropyltriethoxysilan b) 1 bis 20 Gew.% eines feinteiligen Polyvinylchloridpulvers und/oder c) 0,1 bis 5 Gew.% einer amorphen, hydrophoben Kieselsäure und d) 98 bis 65 Gew.% mindestens eines organischen Lösungsmittels, vorzugsweise einer Methylenchlorid enthaltenden Lösungsmittelmischung. The invention relates to adhesion promoters which contain, based on the total weight, a) 1 to 10% by weight of an aminoalkyltrialkoxysilane, preferably y-aminopropyltriethoxysilane b) 1 to 20% by weight of a finely divided polyvinyl chloride powder and / or c) 0.1 to 5% by weight of an amorphous, hydrophobic silica and d) 98 to 65% by weight of at least one organic solvent, preferably a solvent mixture containing methylene chloride. n n n The adhesion promoters are suitable for connecting cellular or non-cellular polyurethanes with solid cover layers. |