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:
May. 13, 2025
Filed:
Jul. 16, 2020
Avery Dennison Corporation, Glendale, CA (US);
Michael E. Hannington, Madison, OH (US);
Nipa Joshi, Schaumburg, IL (US);
Guang-Xue Wei, Buffalo Grove, IL (US);
Avery Dennison Corporation, Mentor, OH (US);
Abstract
Provided herein is a retroreflective film comprising one or more layers (or coating layers) including a small quantity of fluorescent dye that shifts color readings (e.g., chromaticity coordinates) in specific regions located within a color space to comply with industry standards (e.g., United States, Europe, China and Brazil) while improving luminance factor and maintaining retroreflectivity. The one or more layers (or coating layers) of the retroreflective film includes a fluorescent dye from 0.0001 wt. % to 0.05 wt. %, based on the total weight of the layer, and exhibits a color reading that is situated in the color space defined by CIE chromaticity coordinates (0.305, 0.315), (0.335, 0.345), (0.325, 0.355) and (0.295, 0.325). The retroreflective film also achieves a good balance of high luminance and retroreflectivity.