FIELD: chemistry.
SUBSTANCE: present invention relates to a curable composition consisting of two components K1 and K2, which contain (a) at least one aromatic polyisocyanate P, which contains isocyanate groups, (b) at least one dialdimine A of formula 
, where X is a diamine residue DA with two primary amino groups after separating said two amino groups; and Y1 and Y2 are independently a univalent hydrocarbon residue with 1-12 C atoms; and Y3 is a univalent hydrocarbon residue which optionally has at least one heteroatom, particularly oxygen in form of an ether, a carbonyl or ester group, and (c) compounds which are reactive with respect to isocyanate groups, particularly water and/or polyols and/or polyamines, under the condition that at least one of the two primary amino groups of diamine DA is an aliphatic amino group, and that two primary amino groups of diamine DA differ from each other either by the number of hydrogen atoms at the carbon atoms (Cα), which are in the α-position to the corresponding amino group, at least one, or the number hydrogen atoms at the carbon atoms (Cβ), which are in the β-to the corresponding amino group, at least two. Described also is a curable composition obtained after reacting said composition with water, use of the disclosed compositions as an adhesive, a sealant, filling compound or coating, methods of gluing, sealing and coating using said curable composition, and an article which is glued, sealed or coated using said methods.
EFFECT: obtaining moisture-curable polyurethane compositions which are stable during storage, are characterised by long curing time before gluing and high rate of hardening and harden without bubbles.
23 cl, 10 tbl, 24 ex
