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发明授权
CN1891774B 用于抗刮性面漆的含低聚碳酸酯的涂料组合物 失效 - 权利终止 转让

用于抗刮性面漆的含低聚碳酸酯的涂料组合物
摘要：
提供一种包含多异氰酸酯、脂族低聚碳酸酯多元醇和聚丙烯酸酯多元醇的涂料组合物。该涂料组合物包含：A)由a)和b)组成的多元醇组分，其中，a)1重量％至50重量％的数均分子量Mn为200至5000克/摩尔的脂族低聚碳酸酯多元醇，b)50重量％至99重量％的羟基官能聚丙烯酸酯多元醇；B)一种或多种平均NCO官能度≥2.0的OH-活性(多)异氰酸酯交联剂。还提供制备该涂料的方法。
摘要（英）：

Provided a polyisocyanate-containing coating used as scratch-resistant top coat material, especially a top coat material for automobiles. This coating composition comprising (A) a polyol component comprising (a) 1 to 50 pts.wt. of an aliphatic oligocarbonate polyol having a number-average mol.wt. Mn of 200 to 5,000 g/mol and (b) 50 to 99 wt.% of a hydroxy functional polyacrylate polyol, and (B) one or more OH reactive (poly) isocyanate cross-linking agent having an average NCO functional value of >=2.0. The present invention also provides a method of preparing the coating.

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