SILANE TERMINATED POLYCARBONATE-POLYESTER COPOLYMERS FOR COATING, ADHESIVES, SEALANT AND ELASTOMER APPLICATIONS

摘要

Crosslinkable silyl group-containing polymers that may be made using polycarbonate-polyester copolymer polyols and methods for making the same are provided. The crosslinkable silane-terminated polymer is the reaction product of a polycarbonate-polyester copolymer polyol and an isocyanate capped hydrosilylated polymer. The isocyanate capped hydrosilylated polymer is the reaction product of at least one isocyanate and a hydrosilylated polymer. The hydrosilylated polymer is the reaction product of a polymer having at least one unsaturated group and at least one alcohol hydroxyl group in each molecule and a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule. The crosslinkable silane-terminated polymer exhibits improved viscosity properties, UV stability and weatherability.