Patent ID: 8901047

Claim:
A binder for binding bulk materials and loose formations, wherein the binder comprises (A) a heterocondensate of at least one hydrolyzable silicon compound and at least one metal, phosphorus or boron compound, the metal being selected from Al, Ge, Sn, Pb, Ti, Mg, Li, V, Nb, Ta, Zr and Hf, (B) at least one organic polymerizable or polycondensable organic monomer or oligomer selected from monomers or oligomers which on polymerization afford polyisocyanates, melamine resins, polyesters or epoxy resins, and from monomers or oligomers of mono-, bi- or polyfunctional acrylates and methacrylates, styrene, styrene derivatives, vinylpyridine, and vinylbenzenesulfonic acid, (C) a buffer to adjust a pH of the binder to a value of from 4 to 6, and, optionally, a complexing agent.