The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 1981
Filed:
Jun. 23, 1980
Winfried Schuberth, West Carrollton, OH (US);
John F Hanny, Racine, WI (US);
American Thermometer Co., Inc., Dayton, OH (US);
Abstract
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 formulation 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.