COHESION-REDUCED BINDER PRODUCTION AND USE THEREOF IN DETACHABLE ASSEMBLY ADHESIVES

摘要

The invention relates to binding agents containing polyurethanes with reduce d cohesion, the production and use thereof in assembly adhesives. The polyurethanes contained in said binding agents comprise silyl groups, which are cleaved on addition of moisture with an increase in molecular weight. Sa id assembly adhesives are characterised by a bonding agent content of less than 15 wt. %, a filler content in the total composition of more than 20 and less than 80 wt. % or 80 to 95 wt. % and a weight ratio of filler to binder of mo re than 1.44: 1.