Moisture curable polyurethane polymers

Abstract From the Canadian patent

Methods for making a moisture curable polyurethane polymer having terminal isocyanate groups and pendant alkoxysilane groups by reacting an isocyanatosilane adduct having terminal isocyanate groups and at least one hydrolyzable alkoxy group bonded to silicon with a, polyisocyanate and a polyol; moisture curable polymers made by said methods; sealant compositions directly adherent to a non-porous substrate such as glass or metal without the use of a primer, said compositions comprising such a moisture curable polymer in combination with a filler: and methods for curing and using such sealant compositions.