发明授权
US08460588B2 Cross directional zoned bicomponent films, film laminates, and systems and methods for manufacture of the same 有权
横向分区双组分薄膜,薄膜层压板及其制造方法

Cross directional zoned bicomponent films, film laminates, and systems and methods for manufacture of the same
摘要:
Coextruded films provide cross directional zoned multiple components side-by-side to one another. Systems and methods relate to coextruding such films. During coextrusion, a first polymer conjoins with a second polymer while a temperature differential is maintained between the first and second polymers. This temperature differential is selected to reduce a difference between the viscosities of the first and second polymers making the viscosity of the first polymer close enough to the viscosity of the second polymer to avoid separation upon coextrusion. Further, the films may form a layer in subsequent lamination to other material layers.
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