公开(公告)号：US06284846B1

公开(公告)日：2001-09-04

申请号：US09431789

申请日：1999-11-02

申请人： Ronald R. Ambrose ,  William H Retsch ,  Anthony M. Chasser

发明人： Ronald R. Ambrose ,  William H Retsch ,  Anthony M. Chasser

IPC分类号： C09D17506

CPC分类号： C08G18/8067 ,  C08G18/423 ,  C08G18/8016 ,  C08G2150/20 ,  C09D167/02 ,  C08L2666/36

摘要： The invention provides powder coatings that produce consistent finishes when cured, and are stable when uncured. These powder coatings of the invention include novel film forming systems. The novel film forming system, in turn, includes a polymer component and a crosslinker component. In one embodiment, the crosslinker component is novel; and, in another embodiment, both the crosslinker and polymer components are novel. The novel crosslinker component includes a novel, polyfunctional isocyanate compound which is at least partially blocked with at least one of the following: a polyhydroxy aromatic compound, or a mixture of a polyhydroxy aromatic compound and a hydroxy-functional ester compound. The novel polymer component which can be used when practicing certain embodiments of this invention includes a novel polyester polyol. This novel polyester polyol includes the reaction product of a cycloaliphatic component and a polyfunctional isocyanurate component.

摘要翻译： 本发明提供了当固化时产生一致的表面处理的粉末涂料，并且在未固化时是稳定的。 本发明的这些粉末涂料包括新的成膜体系。 新型成膜体系又包括聚合物组分和交联剂组分。 在一个实施方案中，交联剂组分是新颖的; 并且在另一个实施方案中，交联剂和聚合物组分都是新颖的。 该新颖的交联剂组分包括一种新的多官能异氰酸酯化合物，其至少部分被至少一种以下的一种阻塞：多羟基芳族化合物或多羟基芳族化合物和羟基官能酯化合物的混合物。 当实施本发明的某些实施方案时可以使用的新型聚合物组分包括新的聚酯多元醇。 该新型聚酯多元醇包括脂环族组分与多官能异氰脲酸酯组分的反应产物。