Curable coating compositions containing carmamate-functional compounds
    7.
    发明授权
    Curable coating compositions containing carmamate-functional compounds 有权
    含有氨基甲酸酯官能化合物的可固化涂料组合物

    公开(公告)号:US6106951A

    公开(公告)日:2000-08-22

    申请号:US198472

    申请日:1998-11-24

    摘要: The invention provides a process that includes a first step of reacting the hydroxyl groups of a acrylic resin having hydroxyl groups and carbamate groups with a compound that converts the hydroxyl groups to new groups unreactive with an aminoplast crosslinker; a second step of combining the acrylic resin reaction product with at least an aminoplast crosslinker to form a coating composition; and a third step of applying the coating composition to a substrate and curing the applied coating layer, in which substantially no ether linkages are formed. Aminoplast crosslinkers are desirable for other reasons such as providing high solids coatings having excellent appearance that cure under moderate conditions. Avoiding the ether linkages that could be formed by reaction of aminoplast crosslinkers with hydroxyl groups improves the resistance of the cured coating to environmental etch.

    摘要翻译: 本发明提供了一种方法,其包括使具有羟基的丙烯酸树脂和氨基甲酸酯基团的羟基与将羟基转化为不与氨基塑料交联剂反应的新基团的化合物的第一步骤; 将丙烯酸树脂反应产物与至少一种氨基塑料交联剂组合以形成涂料组合物的第二步骤; 以及第三步骤,将涂料组合物施加到基材上并固化涂覆的涂层,其中基本上不形成醚键。 氨基塑料交联剂由于其它原因是理想的,例如提供在中等条件下固化的具有优异外观的高固含量涂层。 避免通过氨基塑料交联剂与羟基反应形成的醚键可以改善固化涂层对环境蚀刻的阻力。

    Hindered amine light stabilizer, methods of making, and compositions
    9.
    发明授权
    Hindered amine light stabilizer, methods of making, and compositions 失效
    受阻胺光稳定剂,制备方法和组合物

    公开(公告)号:US07538130B2

    公开(公告)日:2009-05-26

    申请号:US11234898

    申请日:2005-09-26

    CPC分类号: C08K5/35

    摘要: A compound in which n is 0, 1, 2, or 3; R1, R2, R7, and R8 are each independently alkyl group, including cycloalkyl, an alkylaryl group, or an aryl group, optionally with one or more heteroatoms, with the proviso that R1 and R2 can together form a cycloalkylene group and, independently, R7 and R8 can together form a cycloalkylene group; Y is an oxygen free radical, a sulfur free radical, OR9 or SR9; R3, R4, R5, R6, and R9 are each independently H or an alkyl group, a cycloalkyl group, an aryl group, or an alkylaryl group, optionally with one or more heteroatoms; and compositions, such as basecoat and clearcoat coating compositions, containing such compounds.

    摘要翻译: n为0,1,2或3的化合物; R 1,R 2,R 7和R 8各自独立地为烷基,包括环烷基,烷基芳基或芳基,任选具有一个或多个杂原子,条件是R 1和R 2可以一起形成亚环烷基, R7和R8可以一起形成亚环烷基; Y是氧自由基,无硫自由基,OR9或SR9; R 3,R 4,R 5,R 6和R 9各自独立地为H或烷基,环烷基,芳基或烷基芳基,任选具有一个或多个杂原子; 以及含有这些化合物的组合物,如底漆和透明涂料涂料组合物。

    Curable coating composition with improved durability
    10.
    发明授权
    Curable coating composition with improved durability 有权
    可固化涂料组合物具有改善的耐久性

    公开(公告)号:US06391390B1

    公开(公告)日:2002-05-21

    申请号:US09532763

    申请日:2000-03-22

    IPC分类号: C09D13304

    CPC分类号: C09D7/65 C08L33/062

    摘要: The present invention provides a curable coating composition that includes a film-forming polymer, a polymeric additive having at least one bound surface protecting group, and a crosslinker that is reactive with the film-forming polymer. The polymeric additive is substantially free of groups reactive with the crosslinker and has comonomer units with aryl groups, alkyl groups having, on average, four or more carbon atoms, or combinations of the aryl and alkyl groups. When the coating composition is cured to form a cured coating layer, the concentration of the polymeric additive in the upper about 50% of the cured coating layer thickness is at least about 10% higher than the concentration of the polymeric additive in the rest of the cured coating layer.

    摘要翻译: 本发明提供一种可固化涂料组合物,其包括成膜聚合物,具有至少一个结合表面保护基的聚合物添加剂和与成膜聚合物反应的交联剂。 聚合物添加剂基本上不含与交联剂反应的基团,并且具有芳基,具有平均四个以上碳原子的烷基或芳基和烷基的组合的共聚单体单元。 当涂料组合物固化以形成固化的涂层时,聚合物添加剂在固化涂层厚度的约50%的浓度比其余的聚合物添加剂的浓度高至少约10% 固化涂层。