flexible substrate, sheet type, use of flexible substrate, sheet type, and, process to produce a flexible substrate, sheet type.

摘要

flexible substrate, sheet type, use of flexible substrate, sheet type, and, process to produce a flexible substrate, sheet type. there is described a flexible, smooth substrate with an abrasive surface obtained by applying an aqueous solution or dispersion of at least one pre-condensate of a thermally curable resin on the top side and / or at the base of a flexible, smooth substrate in an amount in the range from 0.1 to 90% by weight with respect to the uncoated, dry substrate; cross-linking the pre-condensate and drying the treated substrate, characterized in that the aqueous solution or dispersion of at least one pre-condensate of a thermally curable resin comprises (i) a polymeric thickener selected from the group consisting of: biopolymers, associative thickeners and completely synthetic thickeners in an amount of 0.01% by weight to 1-% by weight and optionally (ii) a curing agent that only catalyzes further condensation of the thermally curable resin at temperatures greater than about 60 ° c.