Method of making liquid crystal material

Details Method of making liquid crystal material Method of making liquid crystal material

C - Chemistry, Metallurgy

09

K

C09K 19/54 (2006.01) B01J 13/14 (2006.01)

Patent

CA 2160782

An encapsulated liquid crystal material which contains a liquid crystal composition dispersed in a containment medium and is responsive to an applied electric field to transform from a first visual state to a second visual state is made by: (a) providing a liquid crystal composition having an ordinary and an extraordinary refractive index; (b) providing a prepolymer material in which the liquid crystal composition is substantially immiscible and which is polymerizable into a containment medium having a refractive index which is substantially matched with the ordinary refractive index of the liquid crystal composition; (c) forming a dispersion of the liquid crystal composition in the prepolymer material, the dispersion having a mean volume diameter of less than µm; and (d) polymerizing the prepolymer material to form the encapsulated liquid crystal material.

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