Fluorescing covering for roads, parking areas, etc. which fluore

Details Fluorescing covering for roads, parking areas, etc. which fluore Fluorescing covering for roads, parking areas, etc. which fluore

1997-07-29

1999-07-20

Koslow, Melissa

Compositions

Inorganic luminescent compositions with organic...

25230136, 427137, 106 3104, C09K 1108, C09K 1154, C09K 1106, E01F 904

Patent

active

059252871

ABSTRACT:
The invention relates to a fluorescing covering for roads, parking places, etc. which fluoresces when being illuminated with ultraviolet light. In addition to the fluorescing agent, the covering comprises a colouring pigment or a soluble colorant which filtrates the fluorescing light and dissipates only light having a desired wavelength. This colouring pigment or colorant also reflects light having a desired wavelength and absorbs light having a non-desired wavelength also from daylight or some other conventional light source.

REFERENCES:
patent: 3105954 (1963-10-01), Gill, Jr.
patent: 3253146 (1966-05-01), De Vries
patent: 5213711 (1993-05-01), Fast et al.
Barnett et al, "The Emission Characteristics of Fluorescent Pigments", Jour. Opt. Soc. Amer., vol. 39, No. 8, pp. 663-669, Aug. 1949.

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