The invention relates to a composition which forms an insulating layer and which contains a binder based on polyurea. The inventive composition, which has a relatively high expansion rate, allows application, in a simple and rapid manner, of coatings having the layer thickness required for the particular fire resistance time, it being possible to reduce the layer thickness to a minimum and nevertheless to achieve high insulating action. The inventive composition is particularly suitable for fire protection, especially as a coating for metallic and nonmetallic substrates, for instance steel components such as pillars, beams and bars, for increasing the fire resistance time.

The invention relates to a coating composition comprising: a) at least one alkyd binder with an oil content of at least 45 wt % and at most 85 wt %, a modified alkyd binder, or a combination thereof; b) at least one amine or imine component selected from the group comprising: polyaspartic acids and esters thereof, (meth)acrylate/aspartate amines, aldimines, ketimines, and combinations thereof; and c) at least one isocyanate compound.

Disclosed are polyurea compositions and methods for using such composition as sealants, such as construction sealants.

A curable clear coat component for use in a two-component clear coat coating composition system is provided. The curable clear coat component comprises A) a polyaspartic acid ester or a hydroxyl functional binder or a combination of both, and B) an antioxidant component comprising B1) a sterically hindered phenol antioxidant, and B2) an organophosphite antioxidant.

To provide a polymer material having properties that allow the polymer material to replace a polyimide and a polyamide synthesized from a petroleum raw material, said polymer material being synthesized from a raw material derived from natural molecules. [Solution] This polymer material is obtained by polymerizing a polymer raw material comprising a dimer of 4-amino cinnamic acid or a dimer of a 4-amino cinnamic acid derivative, which are natural molecules, wherein the carboxyl group is protected by an alkyl chain. The TGA curve of a polyamide acid (PAA-1) and a polyimide (PI-1) according to the present invention is shown in FIG. 5.

The present invention relates to an aqueous polyurethane dispersion and a process for preparing the same, an adhesive containing the same, and an adhesion article obtained by bonding with the adhesive. The aqueous polyurethane dispersion comprises a polyurethane having an anionic group dispersed therein, the polyurethane has a fusion enthalpy of 3 J/g-100 J/g at 20° C.-100° C. of the first temperature rising curve measured with the DSC according to DIN 65467, a weight-average molecular weight of 31,000-95,000, and the aqueous polyurethane dispersion has an acid value of 0.5 mg KOH/g-8.5 mg KOH/g. The adhesive comprising the aqueous polyurethane dispersion of the present invention has an excellent initial bonding force.

The present invention provides compositions comprising the reaction product of an aliphatic diisocyanate, and a reactive intermediate made from one selected from the group consisting of oxazolidinones, benzoic sulfimides (saccharins), 1H-indole-2,3-diones (isatins), succinamides, N-hydroxysuccinamides, 4-hydroxy-3-methoxybenzaldehydes (vanillins), α-ketoamides, piperazines, benzofuranones, 3,4-dihydroxycyclobut-3-ene-1,2-diones (squaric acids), squaric acid esters, α-ketoamides, anilines, and α-ketoamide, phenols. The aliphatic diisocyanate comprises one selected from the group consisting of isocyanurates, biurets, iminooxadiazine diones, urethanes, uretdiones, carbodiimides, and allophanates. The resulting compositions may be useful in producing coatings, adhesives, sealants, castings, composites and films having durability, color stability, high gloss, and chemical resistance properties similar to those made from polyurethane.

This invention relates to a coating composition, a method for coating of a metallic substrate as well as the use of the coating in a two-component coating composition.

The present invention relates to a polyurea system, the use of such a polyurea system for sealing, linking, gluing, or covering of cellular tissue, and a dosing system having two chambers for a polyurea system such as this. The polyurea system comprises as components: A) an isocyanate-functioning prepolymer, which can be derived by reacting aliphatic isocyanates with polyoles, and B) an amino-functioning ester of aspartic acid. According to the invention, water and/or tertiary amine is added to the system, in order to increase the reacting speed of the prepolymer with the amino-functioning ester of aspartic acid while decreasing the setting time at the same time.

The present invention relates to a polyurea system, the use of such a polyurea system for sealing, linking, gluing, or covering of cellular tissue, and a dosing system having two chambers for a polyurea system such as this. The polyurea system comprises as components: A) an isocyanate-functioning prepolymer, which can be derived by reacting aliphatic isocyanates with polyoles, and B) an amino-functioning ester of aspartic acid. According to the invention, water and/or tertiary amine is added to the system, in order to increase the reacting speed of the prepolymer with the amino-functioning ester of aspartic acid while decreasing the setting time at the same time.