公开(公告)号：US06762272B1

公开(公告)日：2004-07-13

申请号：US09497176

申请日：2000-02-03

申请人： Pierre Ardaud ,  Francis John Williams ,  Jean-Marie Bernard ,  Bernard Vogin

发明人： Pierre Ardaud ,  Francis John Williams ,  Jean-Marie Bernard ,  Bernard Vogin

IPC分类号： C08G1840

CPC分类号： C08G18/80 ,  C08G18/42 ,  C09D175/04

摘要： Provided is a composition useful for obtaining a high gloss coating, for example, a high gloss paint. The composition includes an isocyanate which is at least partially masked by one or more masking agent, and having a degree of liberation with respect to the masking agent at 120 ° C. of 5 % or less. A polyol has a glass transition temperature of about 40° C. or more, a hydroxyl number of about 20 mg KOH/g or more and an average molecular weight Mn of about 500 g/mol or more. Also provided is a process for preparing the composition, wherein the isocyanate, the polyol and any other components are preblended in a blender. The polyol and other meltable components of the blend are melted, homogenized and dispersed in an extruder having one or more screws. Further provided are paint compositions, wherein the paint is a high gloss paint. The compositions are environmentally friendly and result in high gloss coatings having beneficial mechanical properties.

摘要翻译： 提供了可用于获得高光泽涂层的组合物，例如高光泽涂料。 该组合物包含至少部分被一种或多种掩蔽剂掩蔽并且在120℃下相对于掩蔽剂释放度为5％以下的异氰酸酯。 多元醇的玻璃化转变温度为约40℃以上，羟值为约20mg KOH / g以上，平均分子量Mn为约500g / mol以上。 还提供了制备组合物的方法，其中异氰酸酯，多元醇和任何其它组分在混合器中预混合。 将共混物的多元醇和其它可熔组分熔融均质并分散在具有一个或多个螺杆的挤出机中。 还提供了油漆组合物，其中油漆是高光泽油漆。 组合物是环境友好的，并且导致具有有益机械性能的高光泽涂层。