发明授权
US08713882B2 Roofing product with zoned functional compositions and methods of making the same 有权
具有分区功能组合物的屋面产品及其制造方法

Roofing product with zoned functional compositions and methods of making the same
摘要:
A roofing product having at least two separate zones, with one of the zones having one or more certain functional characteristics such as flame retardancy, solar reflectivity, weather resistance, selected coloring, heat stabilization, algae resistance, and/or solar collection for electrical generation, and another of the zones not having such functional feature(s). The different zones can be present in core or capstock material. The product can be made by any of various processes, such as co-extrusion, forming, molding, coinjection, shot injection moldings, multiple step injection moldings and/lamination.
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