| 摘要 |
<p>Water-based adhesion promoter composition comprises an amino silane (I), or an amino siloxane (I') produced by condensing (I) with another silane, together with a mercapto silane (II) and optionally an alkylsilane (III). The weight ratio of (III) to (I) or (I') is 0-45:100 or the molar ratio of (III) to (I) or (I') is 0-0.6:1. Water-based adhesion promoter composition comprises an amino silane of formula (I), or an amino siloxane (I') produced by condensing (I) with another silane, together with a mercapto silane of formula (II) and optionally an alkylsilane (III). The weight ratio of (III) to (I) or (I') is 0-45:100 or the molar ratio of (III) to (I) or (I') is 0-0.6:1. R 1>[Si(OR 2>) 3 - a(R 3>) a] n (I) R 1>'[Si(OR 2>') 3 - b(R 3>') b] m (II) R 1>a n-valent organic group with at least one primary or secondary amino group; R 1>' : a m-valent organic group with at least one mercapto group; R 2>, R 2>' : H, 1-4C alkyl or acyl; R 3>, R 3>' : H or 1-10C alkyl; a, b : 0-2; n, m : 1-4. Independent claims are also included for: (1) kit comprising two components in separate compartments separated by a partition, where one component comprises (I) or (I') and (II) and the other component comprises water; (2) glueing or sealing method comprising applying a composition as above to a first substrate (S1), applying an adhesive or sealant to the flashed-off composition and contacting the adhesive or sealant with a second substrate (S2); or applying a composition as above to S1, applying an adhesive or sealant to S2 and contacting the adhesive or sealant with the flashed-off composition on S1; or applying a composition as above to S1, flashing off the composition and applying an adhesive or selant between S1 and S2; (3) article produced by the above method; (4) use of mercapto silanes for improving the adhesion of moisture-curable one-part polyurethane adhesives to silver or silver-based compositions or alloys.</p> |
