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公开(公告)号：US06726960B1
公开(公告)日：2004-04-27
申请号：US08919448
申请日：1997-08-28
IPC分类号： B66C32687
CPC分类号： B05D7/14 , Y10T428/31663 , Y10T428/31692
摘要： This invention relates to the coating of steel parts with organic polymeric materials for resistance to corrosion, abrasion, impact, salt solutions of high and low pH (both in liquid as well as vapor state) and corrosive atmospheric gases under the environment of high relative humidity and ambient conditions of temperature and pressure. To obtain secure and permanent adhesion of the coating on the steel article a polymeric coating is formulated so as to achieve chemical grafting to the steel face. This involves the use of monomers, prepolymers, catalyst and a graft initiator system. The monomers are preferably polyfunctional and when applied onto a metallic substrate, react via graft polymerization with the metal to form a polymerized layer coated onto the surface of the steel substrate. The monomers and prepolymers are so selected that when polymerized onto steel the coating has substantially zero moisture vapor-gas transmission rate and consequently acts as a barrier to moisture, oxygen and other gases from coming in contact with the surface of the steel substrate thereby improving the protective potential of the coating. Fillers may be included in the coating material to enhance physical or wear characteristics. Other components that can be added are slip agents, wetting agents, thixotropic promoters and adhesion promoters. This coating process is particularly advantageous for use with steel parts used in the manufacture of cranes
摘要翻译： 本发明涉及在高相对湿度环境下耐腐蚀，耐磨，冲击，耐高低pH值（液体以及蒸汽状态）和腐蚀性大气中的有机聚合材料的钢部件的涂覆 和环境温度和压力条件。 为了获得涂层对钢制品的牢固和永久的粘合，配制聚合物涂层，以实现对钢表面的化学接枝。 这包括使用单体，预聚物，催化剂和接枝引发剂体系。 单体优选是多官能的，并且当施加到金属基材上时，通过接枝聚合与金属反应以形成涂覆在钢基材表面上的聚合层。 单体和预聚物是这样选择的：当聚合到钢上时，涂层具有基本上为零的水蒸汽 - 气体传输速率，并且因此用作阻止水分，氧气和其它气体与钢基材表面的接触，从而改善了 涂层的保护电位。 填料可以包括在涂料中以增强物理或磨损特性。 可以添加的其他组分是滑爽剂，润湿剂，触变促进剂和粘合促进剂。 该涂覆方法对于用于制造起重机的钢部件是特别有利的
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