公开(公告)号：US6015871A

公开(公告)日：2000-01-18

申请号：US88234

申请日：1998-06-01

申请人： Homayoun Jamasbi ,  Kenneth Everett Wohltmann ,  Joseph John Spanier

发明人： Homayoun Jamasbi ,  Kenneth Everett Wohltmann ,  Joseph John Spanier

IPC分类号： C09D157/00 ,  C08F261/10 ,  C08F269/00 ,  C08G18/40 ,  C08G18/63 ,  C09D161/20 ,  C09D175/04 ,  C09D175/06 ,  C08G18/62 ,  C09D175/16

CPC分类号： C08F261/10 ,  C08F269/00 ,  C08G18/4063 ,  C08G18/631 ,  C09D175/04 ,  C09D175/06

摘要： The present invention is directed to a low VOC ultra high solids thermosetting coating composition. A polymeric component of the composition includes a low molecular weight polymer polymerized from a monomer mixture containing less than 45 percent by weight of at least one active hydrogen containing monomer. The polymerization takes place in the presence of a reactive diluent. By including the reactive diluent in the polymeric component of the composition, the amount of solvent used in the composition can be substantially reduced, while still providing a pot mix of the composition with a viscosity sufficient to permit efficient coating application. The coatings from the composition are durable; glossy; impact and solvent resistant; and adherent to a wide variety of substrates, such as automobile bumpers, road surfaces and office equipment. The surface of these coatings when subjected to scuffing or surface marring action can be substantially restored to its original condition by simply buffing or polishing the marred or scuffed surface. The invention is also directed to include a combination of chemicals in the thermosetting composition containing an isocyanate cross linking component. Such a combination simultaneously increases the pot life of the pot mix while decreasing the drying time of a coating from the pot mix at ambient temperature over a wide variety of substrate surfaces.

摘要翻译： 本发明涉及一种低VOC超高固含量热固性涂料组合物。 组合物的聚合物组分包括由含有少于45重量％的至少一种含活性氢单体的单体混合物聚合的低分子量聚合物。 聚合反应在反应性稀释剂的存在下进行。 通过将反应性稀释剂包括在组合物的聚合物组分中，组合物中使用的溶剂的量可以大大降低，同时仍然提供组合物的罐混合物，其粘度足以允许有效的涂布应用。 组合物的涂层是耐用的; 光滑; 耐冲击和耐溶剂; 并附着在各种基材上，例如汽车保险杠，路面和办公设备。 当经受磨损或表面损伤作用时，这些涂层的表面可以通过简单地抛光或抛光磨损或磨损的表面而基本恢复到其原始状态。 本发明还涉及包含含有异氰酸酯交联组分的热固性组合物中的化学物质的组合。 这种组合同时增加了罐混合物的适用期，同时在环境温度下在多种基材表面上降低了来自罐混合物的涂料的干燥时间。