Additives for binder compositions in fibrous insulation products

Abstract

A low-tack aqueous binder composition is disclosed that includes at least 30.0% by weight of a polymeric crosslinking agent comprising at least two carboxylic acid groups, based on the total solids content of the binder composition; 10.0% to 50.0% by weight of a polyol having at least two hydroxyl groups, based on the total solids content of the binder composition; wherein the polyol comprises a sugar alcohol, an alkanolamine, pentaerythritol, or mixtures thereof; 1.5% to 15.0% by weight of an additive blend comprising one or more process additives, based on the total solids content of the binder composition; and 0 to 3.0% by weight of a silane coupling agent, based on the total solids content of the binder composition. The aqueous binder composition has an uncured pH between 4.0 and 7.0 and an uncured a peak tack force of no greater than 80 grams at 60% binder solids.

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