Abrasive backing and abrasive support with at least two layers of a support material, and prepared abrasive articles therefrom

Abrasive backing comprising a carrier material of at least one wet- or dry-laid nonwoven based on natural and / or synthetic fibers, characterized in that the carrier material is impregnated on one side with a thermally curable polymer solution and on the opposite side with an aqueous polymer dispersion, wherein the thermally curable polymer solution, the thickness of the carrier material penetrates at least 50% and at most 80%, while the aqueous polymer dispersion penetrates the thickness of the substrate to at least 25% and at most 50%.