Compositions – Liquid crystal compositions
Reexamination Certificate
2006-05-26
2010-06-15
Visconti, Geraldina (Department: 1795)
Compositions
Liquid crystal compositions
C252S299500, C252S587000, C430S020000, C430S270100, C428S001100, C359S244000
Reexamination Certificate
active
07736532
ABSTRACT:
Provided is a composition comprising a nonmicellar twisted nematic liquid crystal having cholesteric near infrared-reflecting properties and at least one near infrared absorptive material. This composition reduces the transmission of near infrared radiation. The composition can be used as a layer, optionally in conjunction with polymeric films, polymeric sheets, rigid sheets, and the like, to form multilayer laminates. In some embodiments these multilayer laminates are useful as solar control windows or window films to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building.
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Goldfinger Marc B.
Hayes Richard A.
Lewittes Mark E.
Marsh Wayne E.
Silverman Lee A.
E.I. du Pont de Nemours and Company
Visconti Geraldina
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