申请人:SIKA TECHNOLOGY AG
公开号:US20170081348A1
公开(公告)日:2017-03-23
A silane of the formula (I) containing at least one aliphatic amidine group- or guanidine group-containing alkoxy group, to a method for producing same, to conversion products thereof, and to the use thereof as a catalyst in curable compositions, in particular based on silane group-containing polymers. The silane of the formula (I) is largely odorless and non-volatile at room temperature. The silane accelerates the hydrolysis and condensation reaction of silane groups very effectively without impairing the storage stability of silane group-containing polymers. Additionally, the silane is very tolerable in silane group-containing compositions, whereby such compositions are not prone to separate, migrate, or evaporate the catalyst.
公式(I)中含有至少一个脂肪族酰胺基或含有酰胺基的胍基的烷氧基团的硅烷,以及生产同类产物的方法,以及将其用作固化组合物中的催化剂的用途,特别是基于含硅烷基的聚合物。公式(I)中的硅烷在室温下基本无味且不挥发。该硅烷有效加速硅烷基的水解和缩合反应,而不会影响含硅烷基聚合物的储存稳定性。此外,该硅烷在含硅烷基的组合物中具有很高的耐受性,因此这些组合物不容易分离、迁移或挥发出催化剂。