Phosphorescent highway paint composition

Details Phosphorescent highway paint composition Phosphorescent highway paint composition

1994-06-09

1995-12-05

Szekely, Peter A.

Coating processes

Coating pavement or the earth

Striping, marking, or increasing reflectivity

25230136, 427157, 523172, 524420, 524529, B05D 506, C08K 330, C08L 7504, C09K 1102

Patent

active

054727375

ABSTRACT:
A water based luminescent highway or roadway paint composition that contains a fine powdered luminescent substance which does not require an organic solvent, a colored paint dispersion, and a polyurethane resin which is water compatible and which imparts an extended surface life under normal traffic conditions. The luminescent substance may be either a phosphorescent material or a combination of a phosphorescent and a fluorescent material. When the fluorescent material is present in the luminescent substance a daytime luminescence or reflectivity or coloration is produced in addition to the phosphorescence produced at night when light (head lights of an automobile) shine on the paint composition marking the median highway stripe or the highway edges.

REFERENCES:
patent: 1407534 (1919-09-01), Hering
patent: 1637963 (1927-08-01), Sauvage
patent: 2436182 (1948-02-01), Schmidling
patent: 3935158 (1976-01-01), Watanabe
patent: 4812492 (1989-03-01), Eckes et al.
patent: 5256725 (1993-10-01), Eranian et al.

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