Road structure – process – or apparatus – Traffic director
Patent
1995-06-29
1997-10-14
Lisehora, James
Road structure, process, or apparatus
Traffic director
404 14, 404 20, 428172, 428173, E01F 908
Patent
active
056764880
ABSTRACT:
A pavement marking and a method of making a pavement marking, where retroreflectivity and skid-resistance can be independently controlled while making efficient use of the optical elements and skid-resistant particles. One illustrative embodiment includes two topcoats on a base sheet having first and second major surfaces, the first major surface having a plurality of protuberances located thereon which are separated by valleys. A first topcoat is attached to the first major surface of the base sheet and a second topcoat is selectively located on the protuberances. A first mixture of optical elements and/or skid-resistant particles is attached to, e.g., partially embedded in, the first topcoat and a second mixture of optical elements and/or skid-resistant particles is attached to, e.g., partially embedded in, the second topcoat.
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Griswold Gary L.
Jordan Robert H.
Kirn Walter N.
Lisehora James
Minnesota Mining and Manufacturing Company
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