专利名称：Surface preparation and polymeric coating
of continuous-strip flat-rolled steel andcoated product
发明人：John A. Sinsel,Mark V. Loen,Michael S. Bailey申请号：US11511278申请日：20060829
公开号：US20070077415A1公开日：20070405
专利附图：
摘要：Engineered composite coated flat-rolled steel strip is produced in continuousline operations, in which flat-rolled steel strip, free of surface iron oxide, having a metallic
corrosion-protective coating, is polymer coated in continuous-line operations in which aplurality of adherent thin-film layers of polymeric material are deposited on a stripsurface. In a dual-surface polymeric coating embodiment, each surface is separately-pretreated for surface adhesion, solidified, and polymeric overhang is removed. Finishprocessing re-melts the polymer coating and rapidly cools that coating through glass-transition temperature to establish amorphous characteristics in the polymeric coatingmaterials. An anhydride-modified polypropylene, first contacts the strip, an intermediatelayer can include about fifteen to twenty five percent, by weight, polybutylene with thebalance polypropylene; an outer surface polymeric layer includes about five to tenpercent, by weight, polybutylene with the balance polypropylene.
申请人：John A. Sinsel,Mark V. Loen,Michael S. Bailey
地址：Weirton WV US,Maricopa AZ US,Landenberg PA US
国籍：US,US,US
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