| 摘要 |
<p>Use of a composition (Q) comprising at least a polyaldimine compound (I), and at least a polyisocyanate as primer for an adhesive agent and sealing agent, is claimed. Use of a composition (Q) comprising at least a polyaldimine compound of formula (A-(N=CH-C(Y 1>)(Y 2>)(Y 3>)) n) (I), and at least a polyisocyanate as primer for an adhesive agent and sealing agent, is claimed. A : a primary aliphatic amine after removing n primary amino group; either Y 1>, Y 2>an univalent 1-4C hydrocarbon; or Y 1>Y 2>a bivalent 4-5C hydrocarbon; Y 3>1-8C hydrocarbon optionally with cyclic portion and/or optionally with at least a heteroatom, preferably O in the form of ether-, ester- or aldehyde group; and n : 2 or 3. Independent claims are included for: (1) a process for adhering a substrate S1 with a substrate S2 comprising applying (Q) on the substrate S1, degassing (Q), applying a polyurethane adhesive on degassed (Q) and/or on a substrate S2, contacting the adhesive present on (Q) with a substrate S2, and/or the adhesive present on the substrate S2 within the open time of the adhesive and hardening the adhesive, where the substrate S2 consists of the same or different material of the substrate S1; and (2) a process for sealing the substrate S1 and S2 comprising applying (Q) on the substrates (S1) and (S2), degassing (Q) and applying the polyurethane sealant between the substrate (S1) and (S2), such that the polyurethane sealant is contacted with the substrates S1 and S2, where the substrate S1 and substrate S2 is a piece.</p> |
