B-stageable aqueous binder compositions
AssigneeOwens Corning Intellectual Capital, LLC
InventorsGert Mueller, Andrew Broderick, Xiujuan Zhang, Liang Chen
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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.
Claims15
An aqueous binder composition comprising:
- from 15% by weight to 37% by weight of a monomeric polyol having at least four-five 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,
- wherein a ratio of molar equivalents of carboxylic acid groups to hydroxyl groups is between 0.32/1 and 0.92/1, wherein the aqueous binder composition has a pH of 2.2 to 4.0,
- wherein the monomeric polyol is selected from the group consisting of sugar alcohol, dimeric condensation product of a sugar alcohol, and oligomeric condensation product of a sugar alcohol,
- wherein the aqueous binder composition is free of polyvinyl alcohol,
- wherein the aqueous binder composition comprises 40% or less binder solids, and
- wherein after curing the aqueous binder composition at 400° F. for 3.5 minutes, the cured binder composition includes less than 3 wt. % of water-soluble material, as determined by extracting any water-soluble materials with deionized water for 3 hours at ambient condition using about 1000 g of deionized water per about 1 gram of the cured binder.
Dependencies are inferred from the claim text.