B-stageable aqueous binder compositions

A fibrous product comprising:

• a plurality of randomly oriented fibers;
• and
• a cured binder formed from a binder composition comprising:
• a sugar alcohol;
• and
• a polymeric polycarboxylic acid,
• wherein the sugar alcohol and polymeric polycarboxylic acid are present in amounts such that a ratio of the number of molar equivalents of carboxylic acid groups to the number of molar equivalents of hydroxyl groups is from 0.32/1 to about 0.92/1, and
• wherein the cured binder comprises no greater than 6 wt. % of water-soluble material, and wherein the fibrous product has a crosslink density that is greater than a comparative fibrous product formed with a binder composition including a polymeric polycarboxylic acid and both a sugar alcohol and a polymeric polyol.