| 摘要 |
<p>One-component moisture-curing composition (I) comprises at least an isocyanate-containing polyurethane polymer (P1), which has an average molecular weight of at least 4000 g/mol, and at least a polyaldimine (A), where the content of isocyanate groups is up to 3.5 wt.%, based on the sum of the isocyanate-containing constituent. One-component moisture-curing composition (I) comprises at least an isocyanate-containing polyurethane polymer (P1), which has an average molecular weight of at least 4000 g/mol, and at least a polyaldimine (A) of the formula (X-[N=CH-C(Y 1>)(Y 2>)(Y 3>)] n) or (X-[N=CH-Y 4>] n), where the content of isocyanate groups is up to 3.5 wt.%, based on the sum of the isocyanate-containing constituent. X : residue of a n-functional polyamine with aliphatic primary amino group (containing a mean amine-equivalent weight of at least 180 (preferably 220) g/equivalent, after the removal of n-amino group); either Y 1>, Y 2> : univalent 1-12C hydrocarbon; or Y 1>Y 2> : bivalent 4-20C hydrocarbon residue (substituted optionally by 5-8C (preferably 6C) carbocyclic); Y 3> : univalent hydrocarbon (optionally having at least a heteroatom, preferably oxygen in the form of ether-, carbonyl- or ester groups); Y 4> : optionally substituted 5-8C (preferably 6C) aryl- or heteroaryl-group, C(=O)-R 2> or optionally substituted 6C alkenyl- or arylalkenyl group; R 2> : H or alkoxy group; and n : 2 or 3. Independent claims are included for: (1) a procedure for sealing, comprising applying (I) between a substrate S1 and a substrate S2 and hardening (I) by contacting with moisture, where the substrates S1 and S2 are same or different from one another; and (2) a sealed article, which is produced by the sealing procedure.</p> |
