Formaldehyde-free binder compositions are described that include an aldehyde or ketone, a reaction product between a polyamine and an organic anhydride, and an acidic compound. The acidic compound may be an organic acid, an acidic catalyst, or both. The acidic compound is supplied in quantities that lower the pH of the binder composition to about 5 or less. The binder compositions may be used in methods of binding fiberglass and the resulting fiberglass products have an improved tensile strength due to the addition of the acidic compound.

Described herein is a coating composition including a) from 25 to 50% by weight of a polymeric binder selected from polyacrylates (A1) and/or polyesters (A2) with a crosslinkable amount of hydroxyl groups, as component (A), b) from 15 to 25% by weight of a crosslinking agent having functional groups that are reactive to OH groups, as component (B), and c) from 35 to 50% by weight of at least one monomeric and/or oligomeric reactive diluent with at least one olefinic double bond, as component (C), where the weight percentage is based on the total weight of the coating composition. This coating composition has not only low VOC but also high hardness after curing. Also described herein are a preparation method of the coating composition and a method of use thereof.

Described herein is a coating composition including a) from 25 to 50% by weight of a polymeric binder selected from polyacrylates (A1) and/or polyesters (A2) with a crosslinkable amount of hydroxyl groups, as component (A), b) from 15 to 25% by weight of a crosslinking agent having functional groups that are reactive to OH groups, as component (B), and c) from 35 to 50% by weight of at least one monomeric and/or oligomeric reactive diluent with at least one olefinic double bond, as component (C), where the weight percentage is based on the total weight of the coating composition. This coating composition has not only low VOC but also high hardness after curing. Also described herein are a preparation method of the coating composition and a method of use thereof.

A wood treatment method for reducing fungal growth utilizes a treatment solution comprising an aldehyde, a carrier solvent, an organic co-solvent, at least one surfactant, and at least one acid, base, or salt. In embodiments, the carrier solvent may comprise water and the organic co-solvent may comprise an alcohol or acetone. The aldehyde is impregnated into the wood, where it reacts with thiamine and other amino acids to promote cross-linking, reducing the porosity of the wood and thereby reducing the ability of various microbes and fungi to access the interior of the wood as a nutrient source.

Formaldehyde-free binder compositions are described that include an aldehyde or ketone, a reaction product between a polyamine and an organic anhydride, and an acidic compound. The acidic compound may be an organic acid, an acidic catalyst, or both. The acidic compound is supplied in quantities that lower the pH of the binder composition to about 5 or less. The binder compositions may be used in methods of binding fiberglass and the resulting fiberglass products have an improved tensile strength due to the addition of the acidic compound.

Formaldehyde-free binder compositions are described that include an aldehyde or ketone, a reaction product between a polyamine and an organic anhydride, and an acidic compound. The acidic compound may be an organic acid, an acidic catalyst, or both. The acidic compound is supplied in quantities that lower the pH of the binder composition to about 5 or less. The binder compositions may be used in methods of binding fiberglass and the resulting fiberglass products have an improved tensile strength due to the addition of the acidic compound.

Formaldehyde-free binder compositions are described that include an aldehyde or ketone, a reaction product between a polyamine and an organic anhydride, and an acidic compound. The acidic compound may be an organic acid, an acidic catalyst, or both. The acidic compound is supplied in quantities that lower the pH of the binder composition to about 5 or less. The binder compositions may be used in methods of binding fiberglass and the resulting fiberglass products have an improved tensile strength due to the addition of the acidic compound.

Formaldehyde-free binder compositions are described that include an aldehyde or ketone, a reaction product between a polyamine and an organic anhydride, and an acidic compound. The acidic compound may be an organic acid, an acidic catalyst, or both. The acidic compound is supplied in quantities that lower the pH of the binder composition to about 5 or less. The binder compositions may be used in methods of binding fiberglass and the resulting fiberglass products have an improved tensile strength due to the addition of the acidic compound.

Formaldehyde-free binder compositions are described that include an aldehyde or ketone, a reaction product between a polyamine and an organic anhydride, and an acidic compound. The acidic compound may be an organic acid, an acidic catalyst, or both. The acidic compound is supplied in quantities that lower the pH of the binder composition to about 5 or less. The binder compositions may be used in methods of binding fiberglass and the resulting fiberglass products have an improved tensile strength due to the addition of the acidic compound.

Formaldehyde-free binder compositions are described that include an aldehyde or ketone, a reaction product between a polyamine and an organic anhydride, and an acidic compound. The acidic compound may be an organic acid, an acidic catalyst, or both. The acidic compound is supplied in quantities that lower the pH of the binder composition to about 5 or less. The binder compositions may be used in methods of binding fiberglass and the resulting fiberglass products have an improved tensile strength due to the addition of the acidic compound.