Disclosed is a low-temperature curable composition comprising: (A) at least one curable component selected from an epoxy resin and a blocked isocyanate, and (B) an amine-based latent curing agent, wherein a temperature peak of a reaction of the amine-based latent curing agent (B) with a bisphenol A type epoxy resin is between 70° C. and 110° C.

The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components, and a thermally activatable amine curative, and has a solids content of 90% or greater. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; and an optional second hydroxyl-containing compound having a single OH group. The first hydroxyl-containing compound has more than one OH group and the optional second hydroxyl-containing compound is a primary alcohol or a secondary alcohol. The present disclosure also provides a two-part composition, in which a polymeric material is included in the first part and the second part includes at least one liquid amine. Further, a method of adhering two substrates is provided, including obtaining a two-part composition; combining at least a portion of the first part with at least a portion of the second part to form a mixture; disposing at least a portion of the mixture on a first substrate; and contacting a second substrate with the mixture disposed on the first substrate. The disclosure also provides a polymeric material and a method of curing a two-part composition. Advantageously, two-part compositions according to the present disclosure can be used as coatings and adhesive systems having a two-step cure with handling and performance similar to existing two-part urethane systems, but with less sensitivity to water.

The present invention relates to a coating composition, a coating method and use of the composition, and a product coated with the coating composition. The coating composition comprises: (a) an isocyanate-reactive component comprising: (a1) at least one polyaspartic ester, and (a2) optionally a polyetheraspartic ester; (b) an isocyanate component comprising: (b1) at least one isocyanate prepolymer having an isocyanate group equivalent of 300 to 1100, and (b2) at least one isocyanate oligomer containing not less than two isocyanate groups, the weight ratio of the isocyanate prepolymer (b1) to the isocyanate oligomer (b2) being from 1:4 to 4:1; (c) a catalyst; and (d) optionally an additive; wherein the coating composition has a molar ratio of isocyanate groups to isocyanate-reactive groups of 1.5:1 to 8:1. The coating composition provided by the present invention has a long pot life, and the resulting coating has the advantages of fast drying and high hardness.

To provide an acrylic sol composition capable of reducing deterioration of physical properties of a sealing material due to moisture absorption after being left in a high-temperature and high-humidity atmosphere for a long time, and also suppressing oxygen inhibition. An acrylic sol composition contains an acrylic resin, an ultraviolet curing resin, a blocked isocyanate resin, and a filler, wherein, with respect to 100 parts by weight of the acrylic resin, 80 to 150 parts by weight of the ultraviolet curing resin, 50 to 110 parts by weight of an amine-based blocked isocyanate resin as the blocked isocyanate resin, and 100 to 180 parts by weight of silica as the filler are contained.

To provide an acrylic sol composition capable of reducing deterioration of physical properties of a sealing material due to moisture absorption after being left in a high-temperature and high-humidity atmosphere for a long time, and also suppressing oxygen inhibition. An acrylic sol composition contains an acrylic resin, an ultraviolet curing resin, a blocked isocyanate resin, and a filler, wherein, with respect to 100 parts by weight of the acrylic resin, 80 to 150 parts by weight of the ultraviolet curing resin, 50 to 110 parts by weight of an amine-based blocked isocyanate resin as the blocked isocyanate resin, and 100 to 180 parts by weight of silica as the filler are contained.

A new polyurethane (PU) adhesive composition with encapsulated hardeners having unique properties in automotive related applications.

A new polyurethane (PU) adhesive composition with encapsulated hardeners having unique properties in automotive related applications.

The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components, and a thermally activatable amine curative, and has a solids content of 90% or greater. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; and an optional second hydroxyl-containing compound having a single OH group. The first hydroxyl-containing compound has more than one OH group and the optional second hydroxyl-containing compound is a primary alcohol or a secondary alcohol. The present disclosure also provides a two-part composition, in which a polymeric material is included in the first part and the second part includes at least one liquid amine. Further, a method of adhering two substrates is provided, including obtaining a two-part composition; combining at least a portion of the first part with at least a portion of the second part to form a mixture; disposing at least a portion of the mixture on a first substrate; and contacting a second substrate with the mixture disposed on the first substrate. The disclosure also provides a polymeric material and a method of curing a two-part composition. Advantageously, two-part compositions according to the present disclosure can be used as coatings and adhesive systems having a two-step cure with handling and performance similar to existing two-part urethane systems, but with less sensitivity to water.

This invention relates to a fine powder-coated amine comprising a solid amine having a melting point equal to or higher than 50 C. and a mean particle size equal to or smaller than 20 m. The fine powder-coated amine has an amount of heat in the second absorption peak measured by a differential scanning calorimeter equal to or less than 220 J/g, and the surface of the solid amine is coated with fine powder having a mean particle size equal to or smaller than 2 m.

This invention relates to a fine powder-coated amine comprising a solid amine having a melting point equal to or higher than 50 C. and a mean particle size equal to or smaller than 20 m. The fine powder-coated amine has an amount of heat in the second absorption peak measured by a differential scanning calorimeter equal to or less than 220 J/g, and the surface of the solid amine is coated with fine powder having a mean particle size equal to or smaller than 2 m.