SYNTHESIS OF BIURETS AND ISOCYANATES WITH ALKOXYSILANE FUNCTIONS, FORMULATIONS CONTAINING SAME AND USE THEREOF

摘要

The invention relates to a composition and a method of preparing one such composition and an isocyanatoalkoxysilane. The polyisocyanate composition contains at least two different oligomeric compounds comprising at least three units and at most five units selected from aminoalkylsilane units and diamine units and at least one function selected from isocyanate functions and from those derived therefrom. The invention is characterised in that one of the aforementioned compounds comprises at least two aminoalkylsilane units and in that another compound comprises at least two diamene units. The invention is suitable for coatings.