Cholesteric compositions

Details Cholesteric compositions Cholesteric compositions

C - Chemistry, Metallurgy

09

K

167/310

C09K 3/34 (1980.01) A61K 7/021 (1980.01)

Patent

CA 1176175

Winfried Schuberth and John F. Hanny CHOLESTERIC COMPOSITIONS ABSTRACT OF THE DISCLOSURE A combination of two or more shear-sensitive cholesteric compounds in a carrier (which can be a third cholesteric ester) creates a mixture of liquid crystals which may be colored or clear which when subjected to a rubbing action produce various colored crystal formulations due to the shearing of the crystals in the physical application of the formu- lation to a surface. A variety of colors from light red to dark blue can be created which disappear as the cholesteric esters are absorbed into the surface. During the application of these formulations a desirable color display is created which adds to the attractiveness of the system, particularly as cosmetic ingredients. Because the cholesteric materials are usually esters of cholesterol, they are readily taken up by the skin and are desirable components for cosmetic formulations.

382668

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