The use of an amidine of formula (I) and/or a conversion product thereof as a catalyst for the crosslinking of a composition based on silane group-containing polymers. The amidine of formula (I) and the conversion products thereof are essentially odorless at room temperature and non-volatile and accelerate the crosslinking of the composition very well without impairing the storage stability of the composition, and are very compatible in the composition. As a result, the compositions do not have a tendency to separate, migrate or evaporate the catalyst.
                            使用式(I)的脒和/或其转化产物作为催化剂,用于基于含
硅烷基聚合物的组合物的交联。式(I)的脒及其转化产物在室温下基本无味且不挥发,能很好地加速组合物的交联而不影响组合物的储存稳定性,并且在组合物中具有很好的相容性。因此,组合物不会出现催化剂分离、迁移或挥发的趋势。