Abstract: Provided is a polyaspartic composition comprising a reaction product of a polyamine with a Michael addition receptor, a pigment, and from >0% to ?3% of a phosphoric acid ester dispersant, wherein the percentage is calculated as (weight of dispersant solids/weight of pigment solids)×100. The inventive polyaspartic compositions may be reacted with a polyisocyanate to provide coatings, adhesives, sealants, composites, castings, and films having a stable initial gloss. Also provided is a method of increasing 60° gloss in a cured polyurea or polyurethane composition, the method comprising reacting a polyisocyanate with the inventive polyaspartic composition to form a reaction product and curing the reaction product, wherein 60° gloss of the cured polyurea or polyurethane composition is ?80%. The high 60° gloss is maintained over at least one-week, and in some cases over at least four weeks, at 40° C. and 80% relative humidity.

Abstract: The present invention provides a hybrid two component coating composition comprising as component I, (A) an N-alkoxysilylalkyl-aspartic acid ester, (B) a polysiloxane having a molecular weight in the range of from about 400 to 10,000, and optionally (C) at least one hydrolyzable silane; and as component II, (D) a polyisocyanate having an average NCO functionality of 2.5 to 5.5 and an isocyanate content, based on solids, of 9 to 50 wt % and containing aliphatic polyisocyanates; and (E) a catalyst. Methods of making and applying the hybrid coating composition are also provided.

Abstract: Two-component coating systems and compositions are disclosed. The coating compositions form crosslinked polyurea coatings and have relatively long pot life and relatively short dry time. The coating compositions include a polyisocyanate, a polyaspartic ester, and a polyetheraspartic ester.

Abstract: Two-component coating systems and compositions are disclosed. The coating compositions form crosslinked polyurea coatings and have relatively long pot life and relatively short dry time. The coating compositions include a polyisocyanate, a polyaspartic ester, and a polyetheraspartic ester.

Abstract: The present invention provides a hybrid two component coating composition comprising as component I, (A) an N-alkoxysilylalkyl-aspartic acid ester, (B) a polysiloxane having a molecular weight in the range of from about 400 to 10,000, and optionally (C) at least one hydrolyzable silane; and as component II, (D) a polyisocyanate having an average NCO functionality of 2.5 to 5.5 and an isocyanate content, based on solids, of 9 to 50 wt % and containing aliphatic polyisocyanates; and (E) a catalyst. Methods of making and applying the hybrid coating composition are also provided.

Abstract: Two-component coating compositions, methods for their preparation and use are disclosed. The two-component coating compositions include an isocyanate-functional component and an isocyanate-reactive component comprising a hydroxyl-functional polymer. The isocyanate-functional component includes: (a) an aliphatic polyisocyanate containing allophanate structural units; and (b) a cycloaliphatic polyisocyanate comprising an allophanate group and an isocyanurate trimer group.

Abstract: The present invention provides a hybrid two component coating composition comprising as component I, (A) an N-alkoxysilylalkyl-aspartic acid ester, (B) a polysiloxane having a molecular weight in the range of from about 400 to 10,000, and optionally (C) at least one hydrolyzable silane; and as component II, (D) a polyisocyanate having an average NCO functionality of 2.5 to 5.5 and an isocyanate content, based on solids, of 9 to 50 wt % and containing aliphatic polyisocyanates; and (E) a catalyst. Methods of making and applying the hybrid coating composition are also provided.

Abstract: The present invention provides a hybrid two component coating composition comprising as component I, (A) an N-alkoxysilylalkyl-aspartic acid ester, (B) a polysiloxane having a molecular weight in the range of from about 400 to 10,000, and optionally (C) at least one hydrolyzable silane; and as component II, (D) a polyisocyanate having an average NCO functionality of 2.5 to 5.5 and an isocyanate content, based on solids, of 9 to 50 wt % and containing aliphatic polyisocyanates; and (E) a catalyst. Methods of making and applying the hybrid coating composition are also provided.

Abstract: The present invention provides a two-component coating composition comprising as component I (a) an acrylate modified amine functional polyaspartic acid ester having an acrylate/acid ester mixture of greater than 2 to 30 wt. % acrylate; (b) at least one moisture scavenger; (c) at least one deaerator; (d) at least one plasticizer; and optionally (e) a short chain polyol having a hydroxyl value of >100; and as component II one or more aliphatic polyisocyanates. Methods of preparing the coating composition, methods of coating a substrate, and coated substrates are also provided. The coating is particularly suitable as a gel coat.

Abstract: The present disclosure is directed to an aliphatic isocyanate-based moisture-curable resin. The disclosed resin may include an aliphatic isocyanate functional material and an cycloaliphatic isocyanate functional material. The resin may be used to formulate a coating composition that may exhibit no substantial sag when applied at a wet film thickness of at least 6 mils, and no substantial blistering when cured to a dry film thickness of at least 6 mils.

Abstract: The present disclosure is directed to an aliphatic isocyanate-based moisture-curable resin. The disclosed resin may include an aliphatic isocyanate functional material and an cycloaliphatic isocyanate functional material. The resin may be used to formulate a coating composition that may exhibit no substantial sag when applied at a wet film thickness of at least 6 mils, and no substantial blistering when cured to a dry film thickness of at least 6 mils.