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AssigneeThe Dow Chemical Company
InventorsJohn A. Wheatley, Walter J. Schrenk, David M. Wisniewski
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A multilayered reflective polymeric body of alternating layers of polymers wherein at least a portion of the layers are in a folded-over relationship is provided along with a coextrusion apparatus and method of preparing the multilayer polymeric body. The reflective polymeric body includes at least first and second diverse polymeric materials having a sufficient number of alternating layers of the first and second polymeric materials such that a portion of the light incident on the body is reflected. The first and second polymeric materials differ from each other in refractive index by at least about 0.03. The reflective body is thermoformable and may be fabricated into wall panels, dishware, decorative trims, and the like, and may also find use in security applications such as credit cards, credit card emblems, or on currency.
A multilayer reflective polymeric body of at least first and second diverse generally transparent polymeric materials, arranged in a sufficient number of alternating layers of said first and second polymeric materials such that at least 30% of the light incident on said body is reflected, wherein said first and second polymeric materials differ from each other in refractive index by at least about 0.03, and wherein at least a portion of said reflective polymeric body includes at least some of said alternating layers in a folded-over relationship.
Dependencies are inferred from the claim text.