A polyurea composition including a first component A with at least one isocyanate-functional polyurethane polymer P1 and a second component B including a blocked amine BA and optionally a polyamine PA having a molecular weight in the range from 60 to 500 g/mol. The polyurea composition further includes a silane S1 selected from the list consisting of isocyanatosilanes S1-1 and epoxy silanes S1-2 as well as an aminosilane S2 and an aggregate AG of an at 23° C. solid thermoset. The polyurea composition is notable for high surface roughness and for reliable and long-term bonding of the aggregates to the coating with no need for sealing. Further, the polyurea composition has enough adhesion to the substrate that the application of a primer layer on the substrate prior to application is not necessary.

A composition having at least one polyisocyanate and/or at least one isocyanate-group-containing polyurethane polymer and at least one latent hardener having aldimino group(s) of formula (I)—as an elastic adhesive, sealant or coating, which is applied on at least one plasticiser migration sensitive substrate and/or is provided with at least one covering layer and a composite obtained therefrom. The method is characterized in that porous material or stress-crackforming plastics can be used without restriction as substrates and very different materials can be used without restriction as covering layers, without the occurrence of damage associated with plasticiser migration from the composition, such as bleeding, discoloring, spotting, softening, swelling or detachment.

A composition having at least one polyisocyanate and/or at least one isocyanate-group-containing polyurethane polymer and at least one latent hardener having aldimino group(s) of formula (I)—as an elastic adhesive, sealant or coating, which is applied on at least one plasticiser migration sensitive substrate and/or is provided with at least one covering layer and a composite obtained therefrom. The method is characterized in that porous material or stress-crackforming plastics can be used without restriction as substrates and very different materials can be used without restriction as covering layers, without the occurrence of damage associated with plasticiser migration from the composition, such as bleeding, discoloring, spotting, softening, swelling or detachment.

A polyurea composition including a first component A with at least one isocyanate-functional polyurethane polymer P1 and a second component B including a blocked amine BA and optionally a polyamine PA having a molecular weight in the range from 60 to 500 g/mol. The polyurea composition further includes a silane S1 selected from the list consisting of isocyanatosilanes S1-1 and epoxy silanes S1-2 as well as an aminosilane S2 and an aggregate AG of an at 23° C. solid thermoset. The polyurea composition is notable for high surface roughness and for reliable and long-term bonding of the aggregates to the coating with no need for sealing. Further, the polyurea composition has enough adhesion to the substrate that the application of a primer layer on the substrate prior to application is not necessary.

A polyurea composition including a first component A with at least one isocyanate-functional polyurethane polymer P1 and a second component B including a blocked amine BA and optionally a polyamine PA having a molecular weight in the range from 60 to 500 g/mol. The polyurea composition further includes a silane S1 selected from the list consisting of isocyanatosilanes S1-1 and epoxy silanes S1-2 as well as an aminosilane S2 and an aggregate AG of an at 23° C. solid thermoset. The polyurea composition is notable for high surface roughness and for reliable and long-term bonding of the aggregates to the coating with no need for sealing. Further, the polyurea composition has enough adhesion to the substrate that the application of a primer layer on the substrate prior to application is not necessary.

A moisture-curing polyurethane composition including: at least one isocyanate-functional polymer with a content of monomeric isophorone diisocyanate of below 0.5 weight-%, obtained from the reaction of isophorone diisocyanate and at least one polyol, and at least one aldimine of formula (I). The composition has a low toxicity, good shelf life stability and cures quickly to an elastic material of low surface tack and good mechanical properties, particularly in terms of high tensile strength and modulus of elasticity at high elongation. It enables coatings, sealants and adhesives with excellent stability under outdoor weathering conditions and high UV load. The aldimine of formula (I) allows to overcome the drawbacks caused by the removal of most of the monomeric isophorone diisocyanate in terms of cure speed, surface tackiness and final strength of such compositions.

A moisture-curing polyurethane composition including: at least one isocyanate-functional polymer with a content of monomeric isophorone diisocyanate of below 0.5 weight-%, obtained from the reaction of isophorone diisocyanate and at least one polyol, and at least one aldimine of formula (I). The composition has a low toxicity, good shelf life stability and cures quickly to an elastic material of low surface tack and good mechanical properties, particularly in terms of high tensile strength and modulus of elasticity at high elongation. It enables coatings, sealants and adhesives with excellent stability under outdoor weathering conditions and high UV load. The aldimine of formula (I) allows to overcome the drawbacks caused by the removal of most of the monomeric isophorone diisocyanate in terms of cure speed, surface tackiness and final strength of such compositions.

Imine, obtainable by reaction of (i) an amino-functionalised polyoxyalkylene, the polyoxyalkylene chains of which are a copolymer of oxyethylene and oxypropylene units, those polyoxyalkylene chains carrying primary amino groups (preferably two terminal primary amino groups per molecule), and (ii) a ketone and/or aldehyde having a hydrogen atom at the carbon atom in the alpha-position to the carbonyl carbon; and various subjects of the invention based thereon, especially in coating systems or adhesive systems.

Imine, obtainable by reaction of (i) an amino-functionalised polyoxyalkylene, the polyoxyalkylene chains of which are a copolymer of oxyethylene and oxypropylene units, those polyoxyalkylene chains carrying primary amino groups (preferably two terminal primary amino groups per molecule), and (ii) a ketone and/or aldehyde having a hydrogen atom at the carbon atom in the alpha-position to the carbonyl carbon; and various subjects of the invention based thereon, especially in coating systems or adhesive systems.

The present invention relates to a composition comprising a first component containing at least one polyol, and a second component containing at least one polyisocyanate, the composition further comprising at least one aldimine of formula (I). The composition exhibits a long open time and fast curing without odor immissions, wherein a bubble-free, elastic material having a non-tacky surface and good strength, extensibility, elasticity and resistance is produced, which does not tend to problems arising with plasticizer migration.