| 摘要 |
The invention concerns a method for providing a substrate with a coating with high impact strength properties, characterised in that it consists in applying on said substrate an aqueous masked (poly)isocyanate emulsion having a droplet average size less than 10 mum, advantageously less than 5 mum, preferably less than 1 mum, and in reacting it with a polyol in conditions leading to crosslinking of the (poly)isocyanate with the polyol.
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