Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With viewing layer of specified composition
Reexamination Certificate
2006-05-26
2010-06-29
Chen, Vivian (Department: 1794)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
With viewing layer of specified composition
C428S001100, C428S001310, C428S001320, C428S001330, C428S001500, C428S001520, C428S001530, C428S001550, C428S001600, C428S001620, C428S212000, C428S412000, C428S413000, C428S414000, C428S415000, C428S417000, C428S426000, C428S429000, C428S430000, C428S438000, C428S439000, C428S441000, C428S442000, C428S447000, C428S449000, C428S451000, C428S480000, C428S483000, C428S500000, C428S515000, C428S522000, C428S523000, C359S350000, C252S299010, C252S582000, C252S587000, C349S001000, C349S016000
Reexamination Certificate
active
07744970
ABSTRACT:
Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet comprising a polymer with a modulus of 20,000 psi (138 MPa) or less. The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like.
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Goldfinger Marc B.
Hayes Richard A.
Silverman Lee A.
Chen Vivian
E. I. du Pont de Nemours and Company
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