B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 3/28 (2006.01) B29C 43/30 (2006.01) B29C 47/06 (2006.01) B29C 47/32 (2006.01) B29C 47/88 (2006.01) B29C 69/02 (2006.01) B29D 11/00 (2006.01) B44F 1/02 (2006.01) G02B 5/28 (2006.01)
Patent
CA 2130809
2130809 9316876 PCTABS00025 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 and decorative trims, and may also find use in security applications such as credit cards, credit card emblems, or on currency.
Schrenk Walter J.
Wheatley John A.
Wisniewski David M.
Smart & Biggar
The Dow Chemical Company
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