Patent ID: 8916669

Claim:
A method of producing a hydrosilylated polyoxyalkylene polymer having at least one crosslinkable silyl group and at least one hydroxyl group in each molecule, the method comprising: providing a polyoxyalkylene polymer having at least one unsaturated group and at least one alcoholic hydroxyl group in each molecule, wherein: the polyoxyalkylene polymer includes an impurity double metal cyanide complex mixed therein, and the polyoxyalkylene polymer has not been treated with a metal-coordinating compound and has not been purified to significantly remove the impurity double metal cyanide complex, the impurity double metal cyanide complex including an organic complexing agent; and adding to the polyoxyalkylene polymer a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule so as to provide hydrosilylation reactants and a hydrosilylation catalyst to thereby carry out a hydrosilylation reaction, wherein: the hydrosilyation reaction is performed in an absence of a metal-coordinating compound and without removing or treating the double metal cyanide complex present in the hydrosilylation reactants, and the hydrosilyation reaction has a hydrosilylation efficiency of at least about 70% as determined by 1 H-NMR.