Composite liquid crystalline mixture

Details Composite liquid crystalline mixture Composite liquid crystalline mixture

2006-04-25

2006-04-25

Wu, Shean C. (Department: 1756)

Compositions

Liquid crystal compositions

C252S299100, C252S299500

Reexamination Certificate

active

07033523

ABSTRACT:
Described is a composite liquid crystalline mixture having a low refractive index and a chemical reactive power that makes it capable of minimizing an anchoring energy when in contact with silica. This mixture comprises:(a) low ordinary refractive index nematic liquid crystal of a single type or a mixture of low ordinary refractive index nematic liquid crystals of different types;(b) at least one reagent compound capable of reducing the anchoring energy via a chemical shielding process and from which originates a decoupling effect with a glass interface leading to the reduction of the anchoring energy and appropriately orienting a liquid crystal director at this interface; and(c) at least one low refractive index additive having a relatively low viscosity.The above mixture is useful in waveguide tuning applications.

REFERENCES:
patent: 5190688 (1993-03-01), Sage et al.
patent: 5963291 (1999-10-01), Wu et al.
patent: 6285812 (2001-09-01), Amundson et al.
patent: 6452573 (2002-09-01), Martinot-Lagarde et al.
patent: 2003/0103708 (2003-06-01), Galstian et al.

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