FIELD: chemistry.
SUBSTANCE: invention relates to compositions containing sulphur-containing polymers, such as polythioethers and polysulphides, polyepoxides and controlled release amine catalysts, used in aerospace sealing materials. Composition contains a sulphur-containing polymer, selected from a sulphur-containing polymer with a terminal thiol group, blocked sulphur-containing polymer with a terminal thiol group and combinations thereof, polyepoxy hardener and a controlled release amine catalyst, including a matrix sealing substance containing an amine catalyst.
EFFECT: invention provides a controlled rate of hardening of composition and a long shelf life in storage.
19 cl, 7 tbl, 2 dwg, 7 ex
