Title: Retroflective article with dual reflector
Application Number: 95193109 Application Date: 1995.04.25
Publication Number: 1148421 Publication Date: 1997.04.23
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: E01F9/04;G02B5/128
Applicant(s) Name: Minnesota Mining and Mfg. Co. Address:
Inventor(s) Name: K. A. Hachey;T. P. Hedblom;D. C. May
Attorney & Agent: BAI YIHUA
Abstract:
    The retroreflective article comprises transparent microspheres (21) and both specular (31) and diffuse (29) reflective pigments dispersed in a binder layer. The utilization of both types of pigments results in improved retroreflectivity over a greater range of entrance angles than if only one or the other pigment alone were used.
Time: 8
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