Mixture of liquid-crystal compounds, system of three liquid-crystal mixtures and their use
AssigneeBraster SA
InventorsJacek Bernard Stępień, Henryk Jaremek, Grzegorz Franciszek Pielak
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Abstract
Three organic compounds mixtures of liquid-crystal properties, which when mixed together in a precisely determined weight ratio, may show an ability to form thermo-optically active mesophases of established, narrow range thermooptical transitions separation, every 0.5° C., in the temperature range: from 31.8° C. to 32.8° C., from 32.8° C. to 33.8° C., and from 33.8° C. to 34.8° C. and system including these mixtures. The use of these mixtures and the system containing the above mentioned mixtures for colorimetric detection of temperature differentiation on the surface of biological objects in a narrow range of temperatures.
Claims11
A mixture of liquid-crystal compounds, wherein it comprises cholesteryl pelargonate in amount from 48.61% to 52.53% by weight, cholesteryl oleyl carbonate in amount from 46.47% to 50.39% by weight, cholesteryl propionate in amount from 0.18% to 0.28% by weight, cholesteryl chloride in amount from 0.16% to 0.20% by weight and 4,4′-dipentylazoxybenzene in amount from 0.52% to 0.66% by weight.
Dependencies are inferred from the claim text.