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:
Oct. 27, 2015
Filed:
Mar. 30, 2011
Deborah Charlson, Maineville, OH (US);
Lisa Clapp, Cincinnati, OH (US);
David J. Kozak, Fairfield, OH (US);
Paul Merchak, Loveland, OH (US);
Mark Ortalano, Cincinnati, OH (US);
Russell J. Schwartz, Cincinnati, OH (US);
Deborah Charlson, Maineville, OH (US);
Lisa Clapp, Cincinnati, OH (US);
David J. Kozak, Fairfield, OH (US);
Paul Merchak, Loveland, OH (US);
Mark Ortalano, Cincinnati, OH (US);
Russell J. Schwartz, Cincinnati, OH (US);
Sun Chemical Corporation, Parsippany, NJ (US);
Abstract
The present invention provides a reversible piezochromic system that changes appearance upon application of a mechanical force. The reversible piezochromic system includes a cavity defined by a first substrate and a second substrate. The cavity includes at least a first fluid. The first fluid spreads when a mechanical force is applied to the system. The relaxation time of the first fluid depends upon the internal forces of the system. These internal forces at least include the surface energy differences between the substrates and the fluid or fluids, and the rheological properties of the fluid or fluids.