(354a) Isocyanatoorganosilanes – Chemistry and Process Technology
AIChE Annual Meeting
2015
2015 AIChE Annual Meeting Proceedings
Process Development Division
Innovation, Scale-up, and Technology Commercialization
Tuesday, November 10, 2015 - 12:30pm to 12:51pm
Isocyanatoorganosilanes, commonly used in industrial settings as adhesion promoters between organic polymers and inorganic materials, are of great commercial interest in the coatings, adhesives and sealants markets. Isocyanatosilanes can be made through three different routes: 1) corresponding carbamatosilane thermal cracking with loss of methanol, 2) phosgenation of a corresponding aminosilane or 3) reaction of a chloropropylsilane with cyanate salts. Commercial isocyanatoorganosilanes are primarily made via thermal cracking of corresponding carbamatoorganosilanes. Other routes have not been commercialized due to either safety issues or economical inefficiency. The advantages and disadvantages of these routes, as well as a patent literature review, will be discussed.