Patent ID: 8030416

Claim:
A method for producing an organic-inorganic hybrid vitreous material comprising a composite of a polycondensate of an organoalkoxysilane and an organic polymer, the method comprising the steps of: (a) dissolving the polycondensate of the organoalkoxysilane represented by R 1 n Si(OR 2 ) 4-n , where R 1 is an organic group, R 2 is a C 1 -C 5 alkyl group, and n is 1-2, and the organic polymer in a solvent to prepare a solution; (b) adding a titanium complex, as a compatibility increasing agent for the polycondensate of the organoalkoxysilane and the organic polymer, to the solution; and (c) distilling the solvent out of the solution such that the polycondensate of the organoalkoxysilane is 40-70 wt % and the organic polymer is 30-60 wt %, based on the total weight of the composite.