SCRATCH RESISTANT THERMOSETTING COATING COMPOSITIONS

This invention relates to a carbamate functional thermosetting coating with a composition comprised of a carbamate-functional acrylic and/or polyester polyol and an alkylated melamine-formaldehyde cross linker modified by an aliphatic polyester and an alkylated melamine. The polyester polyol is made of monomers including a 2,4,4-tetraalkylcyclobutane-1,3-diol and an aliphatic diacid. These polyester polyols can be used in blends with hydroxyl-functional or carbamate-functional acrylic resins or serve as the primary film former in a coating formulation. 本发明涉及一种氨基甲酸酯官能化的热固性涂层，其组成包括氨基甲酸酯官能化的丙烯酸和/或聚酯多元醇以及用脂族聚酯和烷基化三聚氰胺改性的烷基化三聚氰胺-甲醛交联剂。聚酯多元醇由包括2,4,4-四烷基环丁烷-1,3-二醇和脂族二酸的单体制成。这些聚酯多元醇可与羟基官能化的或氨基甲酸酯官能化的丙烯酸树脂共混使用，或在涂层配方中用作主要成膜剂。