| abstract |
The present invention relates to mixtures which can be prepared by reacting (av) methanesulfonic acid, (bv) at least one ester of phosphorus oxyacids and at least one (cv) silane. The present invention also relates to the use of said mixture as an additive for the polyisocyanate component of a two-component binder system for the production of polyurethane resins. The present invention also relates to the use of a polyisocyanate-containing solution used as a component of a molding material binder system and a polyisocyanate-containing solution as a polyisocyanate component of a two-component binder system for the production of a polyurethane resin, 2-component binder systems. |