High performance composite coating

专利名称：High performance composite coating发明人：Dennis Wong,Jiri Holub,Joseph G. Mordarski申请号：US07/741598申请日：19910807公开号：US05178902A公开日：19930112

摘要：Two methods are provided for applying and forming a protective compositecoating on a metallic substrate. In the first method, the substrate is heated to a

temperature between about 175° C. and 275. degree. C. and a powdered coating of epoxyresin between 100 and 400 microns thick is applied to the outer surface of the heatedsubstrate. A premixed powder coating of epoxy resin and polyolefin is applied directlyonto the epoxy resin coating, forming an interlayer of interspersed domains of epoxy andpolyolefin between about 100 and 400 microns in thickness. On to this, powderedpolyolefin is sprayed to produce a polyolefin sheath coating for the metallic substratebetween 200 and 1000 microns in thickness. In the second embodiment of the method,the interlayer is formed by spraying pure epoxy resin powder and polyolefin powderfrom separate sources simultaneously onto the substrate. By these methods, a metallicsubstrate coated with a composite epoxy/polyolefin protective coating is produced. Aparticular advantage of the methods results from the fact that the powders are appliedin a common spray booth through which the substrate is advanced.

申请人：SHAW INDUSTRIES LTD.

代理机构：Ridout & Maybee

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