Fluorescent coating
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United States of America Patent
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-
May 25, 1993
Grant Date -
N/A
app pub date -
Jul 9, 1991
filing date -
Jul 11, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fluorescing coating which fluoresces when illuminated with light within the ultraviolet wavelength range. The coating is intended primarily for road markings of different kinds and includes material (4;5) with pigment for emitting color when illuminated with light within the visible wavelength range and material which fluoresces when illuminated with light within the ultraviolet wavelength range. The coating further includes a binder (3). The invention is characterized in that the material which fluoresces when illuminated with light within the ultraviolet wavelength range consists of glass spheres (2) or glass pieces produced from a glass mass which has been doped with a dope additive such as to cause the glass in the glass spheres or glass pieces to fluoresce when illuminated with ultraviolet light.
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