FIELD: chemistry.
SUBSTANCE: present invention relates to a single-component primer composition for substrates made from glass and/or plastic, having setting time of at least 1 month. Said composition includes: a base primer composition including (a) an isocyanate functional prepolymer derived from the reaction of an aliphatic polyisocyanate and a polyol, and which is partially reacted with an amino group of a secondary aminosilane, wherein the aminosilane includes two or three methoxy groups bound to a silicon atom, two or three ethoxy groups bound to a silicon atom, or a combination thereof; (b) an isocyanate functional prepolymer with an isocyanate content greater than 1%, which is the reaction product of an aromatic polyisocyanate and a polyol of Mn>300; and (c) at least one solvent for the components (a) and (b); and an ingredient including an oxazolidine ring or derivative thereof; a second adduct (i) of an aromatic polyisocyanate and (ii) mercaptosilane, aminosilane or both; a film-forming polymer. The invention also describes glued structure having a glass or plastic panel, containing the said composition, a method of gluing the glass panel to the frame of a vehicle, comprising a step for applying said composition and a glued structure made using said method.
EFFECT: obtaining primer with long setting time, which exhibits excellent stability during storage, during application of which the surface does not swell.
13 cl, 4 tbl
