Retroreflective pavement marking

Details Retroreflective pavement marking Retroreflective pavement marking

G - Physics

02

B

G02B 5/128 (2006.01) E01F 9/04 (2006.01)

Patent

CA 2147710

Retroreflective pavement marking sheet exhibiting improved retroreflective brightness at high incidence angles, the sheet comprising a binder layer having first and second major surfaces and plurality of microspheres partially embedded in and partially protruding from the first major surface, the binder layer comprising a binder material and pigment particles, wherein: (1) the binder layer comprises a selected quantity of pigment particles, (2) the microspheres have a selected average index of refraction, (3) the microspheres are present in selected quantity, and in some embodiments the microspheres are embedded to a selected depth. Flat and patterned pavement markings are disclosed.

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