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Process for the production of heat crosslinkable weather resistant polyurethane powder coatings and coatings obtained therefrom
Process for the production of heat crosslinkable weather resistant polyurethane powder coatings and coatings obtained therefrom
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机译:制备可热交联的耐候性聚氨酯粉末涂料的方法以及由此获得的涂料
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摘要
High reactivity polyurethane powder paints contain: (A) isocyanates at least partially capped with 1,2,4-triazole, comprising mixtures of (cyclo)aliphatic diisocyanate trimers (i.e. isocyanato-isocyanurates); (B) polymers with hydroxyl groups; and (C) optional standard auxiliary agents and additives. The use of these heat-curable, storage-stable, transparent and pigment-containing paints for coating substrates, preferably heat-sensitive work surfaces, is also claimed.
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