Binder compositions and uses thereof

An uncured product comprising an assembly of fibrous material or cellulosic particulate or sheet material bonded with an aqueous curable binder composition comprising a carbohydrate compound, a first cross-linker selected from a carboxyl function bearing compound which forms esters with the carbohydrate compound, and a second cross-linker, the second cross-linker being different from the first and being capable of undergoing radical polymerization, and optionally a free radical initiator;

• wherein the carboxyl function bearing compound is selected from a monomeric polycarboxylic acid, and wherein the second cross-linker capable of undergoing radical polymerization is selected from an acrylamide monomer and a methacrylamide monomer, an acrylate monomer and a methacrylate monomer, an acrylic acid and its salts, acrylonitrile, a carbohydrate monomer, maleimide, and mixtures thereof.