Oriented polymeric sheets exhibiting dichroism and articles containing the same
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United States of America Patent
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Aug 4, 2015
Grant Date -
Dec 20, 2007
app pub date -
Jul 18, 2007
filing date -
Jul 1, 2003
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Abstract
Provided is an oriented polymeric sheet comprising a photochromic-dichroic material, wherein the sheet exhibits dichroism in an activated state. Also provided is a multilayer composite comprising at least a support layer; and an oriented thermoplastic polymeric sheet having two opposing surfaces and comprising a photochromic-dichroic material. The sheet exhibits dichroism in an activated state. At least one surface of the sheet is connected to at least a portion of the support layer. The present invention also relates to an optical element comprising the multilayer composite. Related methods also are disclosed.
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