Use of organic carbonate modified prepolymers as reactants for the production of isocyanate-free and isothiocyanate-free alkoxysilane polymers

摘要

The present invention is the use of an organocarbonate-modified prepolymer having an average of at least 1.5 carbonate, thiocarbonate, carbamate or thiocarbamate groups bonded directly to the polymer backbone via oxygen atoms. Each of the above oxygen atoms includes a first, second or third hydroxyl group of the polymer skeleton, diorganocarbonate, diorganothiocarbonate, cyclic carbonate, cyclic thiocarbonate, N, N-diheterocyclourea derivative, And said use, derived from a reaction with a reactive compound selected from the group consisting of N, N-diheterocyclothiourea derivatives. The invention also relates to the production of alkoxysilane polymers.