AGENT AQUEOUS BINDER， THE USE OF A BINDER AGENT， AQUEOUS PROCESS FOR PRODUCING A MOLDED ARTICLE FROM A FIBROUS OR GRANULAR SUBSTRATES， and MOLDED ARTICLE

The invention relates to an aqueous binding agent for granular and/or fibrous substrates， containing as effective constituents a) at least one polymer product obtainable by radical polymerization and comprising = 5.5% by weight and = 20% by weight of an a，??-ethylenically unsaturated monocarboxylic or dicarboxylic acid in copolymerized form [polymer product A]， b) at least one polymer product obtainable by radical polymerization and comprising = 40% by weight of an a，??-ethylenically unsaturated monocarboxylic or dicarboxylic acid in copolymerized form [polymer product B]， and c) at least one polyol compound having at least two hydroxyl groups [polyol C]. The invention relates to an aqueous binding agent for granular and/or fibrous substrates， containing as effective constituents a) at least one polymer product obtainable by radical polymerization and comprising ≥ 5.5% by weight and ≤ 20% by weight of an α，??-ethylenically unsaturated monocarboxylic or dicarboxylic acid in copolymerized form [polymer product A]， b) at least one polymer product obtainable by radical polymerization and comprising ≥ 40% by weight of an α，??-ethylenically unsaturated monocarboxylic or dicarboxylic acid in copolymerized form [polymer product B]， and c) at least one polyol compound having at least two hydroxyl groups [polyol C].