B-stageable aqueous binder compositions

Abstract

An aqueous binder composition is disclosed that includes 5.0% by weight to 50.0% by weight of a monomeric polyol having at least four hydroxyl groups, based on the total solids content of the aqueous binder composition; and at least 50.0% by weight of a cross-linking agent comprising a polymeric polycarboxylic acid having at least two carboxylic acid groups, based on the total solids content of the aqueous binder composition. The aqueous binder composition includes a ratio of molar equivalents of carboxylic acid groups to hydroxyl groups is between 0.15 / 1.0 and 2.23 / 1 and has a pH of 2.2 to 4.0 and a viscosity at 40% solids and 25 C of 10 cP to 60 cP.

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