Thermoset coating compositions having improved hardness
    198.
    发明授权
    Thermoset coating compositions having improved hardness 失效
    具有改善硬度的热固性涂料组合物

    公开(公告)号:US5681906A

    公开(公告)日:1997-10-28

    申请号:US424205

    申请日:1995-04-19

    Abstract: The present invention provides for amino-crosslinkable coating formulations based on a mixture of a di- or polyhydroxy functional polymeric component selected from the group consisting of diesters, polyesters, alkyd polymers, acrylic polymers and polycarbonate polymers, a crosslinking agent such as a methylol (alkoxymethyl) amino crosslinking agent, and a reactive additive which is the ester reaction product of a phenol carboxylic acid, preferably para-hydroxybenzoic acid, and an epoxy compound selected from glycidyl ethers, glycidyl esters, linear epoxies and aromatic epoxies. The crosslinkable compositions of this invention may be used to prepare curable coating and paint formulations, and also may contain other ingredients such as a crosslinking catalyst, fillers, pigments and the like. When cured, the coatings of this invention exhibit improved physical and chemical properties when compared with cured coatings which do not contain the ester reaction product additive.

    Abstract translation: 本发明提供了基于选自二酯,聚酯,醇酸聚合物,丙烯酸聚合物和聚碳酸酯聚合物的二元或多羟基官能聚合物组分的混合物的氨基可交联涂料配方,交联剂如羟甲基( 烷氧基甲基)氨基交联剂,以及作为酚羧酸,优选对羟基苯甲酸和选自缩水甘油醚,缩水甘油酯,直链环氧化合物和芳族环氧化合物的环氧化合物的酯反应产物的反应性添加剂。 本发明的可交联组合物可用于制备可固化涂料和涂料制剂,并且还可以含有其它成分如交联催化剂,填料,颜料等。 当固化时,与不含酯反应产物添加剂的固化涂层相比,本发明的涂层表现出改善的物理和化学性质。

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