POLYURETHANE-CONTAINING SEALANT FOR INSULATING DOUBLE-GLAZED WINDOW Russian patent published in 2016 - IPC C08G18/28 C08G18/36 C08G18/77 C08G18/78 C03C27/10 C03C17/30 

FIELD: chemistry.

SUBSTANCE: versions of invention relate to insulating elements, in particular to insulating elements which have polyurethane-containing sealings. Described is method for obtaining insulating element, which includes formation of, at least, one isocyanate-reactionable side, and, at least, one isocyanate-reactionable side contains, at least, one hydrophobic polyol, which has average functionality from approximately 2 to approximately 6; at least, one chain extender, which has two isocyanate-reactionable groups per a molecule and equivalent weight on isocyanate-reactionable group less than 400; at least, one filling agent, where, at least, one filling agent is represented by, at least, one representative from barium sulphate (BaSO₄), aluminium oxide (Al₂O₃), aluminium hydroxide (Al(OH)₃), magnesium hydroxide (Mg(OH)₂), calcium carbonate(CaCO₃),, mica and talc; and interaction of, at least, one isocyanate-reactionable side with, at least, one first isocyanate in presence of, at least, one adhesion promoter, and, at least, one adhesion promoter contains, at least, product of interaction of, at least, one secondary aminoalkoxysilane and, at least, one second isocyanate, and product of interaction has on average, at least, one silane group and, at least, one isocyanate group per molecule; and application of, at least, one isocyanate-reactionable side, of , at least, one first isocyanate and, at least, one adhesion promoter between, at least, parts of first surface and second surface. Also described is insulating element, which has: first surface; construction sealing, located on, at least, parts of first surface, where construction sealing contains product of interaction of: at least, one first isocyanate; at least, one isocyanate-reactionable side described above; and, at least, one said adhesion promoter; and second surface, located on construction sealing.

EFFECT: obtaining polyurethane-containing sealants, which have improved characteristics of adhesion to glass.

25 cl, 6 ex, 1 tbl