Patent ID: 8034872

Claim:
A composition comprising at least one of hydrolysates or condensates of epoxy-and silane-functional oligomers and polymers, prepared by at least one of hydrolyzing or condensing at least one of an oligomer or polymer (A), wherein the oligomer or polymer (A) is selected from the group consisting of copolymers of olefinically unsaturated monomers, containing at least one epoxide group (a1) and at least one hydrolyzable silane group (a2), wherein the number-average molecular weight of the oligomer or polymer (A) is from 800to 3000 daltons, wherein the hydrolyzing or condensing is conducted in the presence of nanoparticles having a primary particle size of from 5 to 50 nm, which nanoparticles are metals of oxides, oxide hydrates, sulfates, hydroxides or phosphates oxides, and wherein the metals are selected from the group consisting of boron, aluminum, gallium, silicon, germanium, tin, arsenic, antimony, silver, zinc, titanium, zirconium, hafnium, vanadium, niobium, tantalum, molybdenum, tungsten, and cerium, and wherein the hydrolysis and/or condensation takes place in a sol-gel process by reaction with water in the presence of an organic or inorganic acid.