| 摘要 |
A compsn. comprising (i) at least one opt. masked polyisocyanate (I) in the form of an aq. emulsion with an average particle size d50 of 0.1-10 mm., pref. less than 2 and greater than 0.2 mm. and (ii) at least one polyhydroxylated polymer (II), esp. a polyol, in the form of an aq. dispersion with an average particle size d50 of 10-200 nm., whereby the (I) is present in an amt. of at least 5/6R-20 pref. at least 5/6R-18 and esp.5/6R-16 wt.% where R = d50(I)/d50(II). Coating obtained from above composition is also claimed. |
