FIELD: chemistry.
SUBSTANCE: invention relates to the method for curing a mixture of a basic mass and a curing agent based on sulfur-containing polymers, according to which the "on-demand" curing takes place so fast that the formation time of the sealing mass surface without tackiness after the beginning of curing is 0.05 to 5 minutes. The method for applying a layer of a mixture B or a curing sealing mass formed therefrom onto a substrate. The mixture B and the sealing mass contain sulfur-containing polymers, where the mixture B is an uncured mixture consisting of a basic mass A and an isocyanate-containing curing agent, the basic mass A is not cured, and contains a base polymer with mercapto end groups based on polythioether, polysulfide, their copolymers or/and their mixtures, the uncured basic mass A, the curing agent, or both, comprise, at least, one photoinitiator based on α-amino ketone, isocyanate used as the curing agent, contained in mixture B, has an average functionality in the range of 1.5 to 3.2, the basic mass A, the mixture B and the sealing mass are free from (meth) acrylate-based compounds/polymers, from molecules of, at least, one photoinitiator under the action of a high-energy actinic radiation, at least, one tertiary amine-based radical is disrupted, from which, in particular, the active catalyst is formed due to the accession of the hydrogen atom, that catalyzes curing of the sealing mass, and the mixture B after exposure to high-energy actinic radiation is cured in the temperature interval of +5 to +60°C. After curing has begun, it is called the sealing mass. In addition, the invention relates to the respective basic mass A, the mixtures B, the curing agent and the sealing mass system, as well as aircraft containing them.
EFFECT: improving the properties of compounds.
50 cl, 14 tbl
