Compositions – Organic luminescent material containing compositions – Inspection penetrant compositions
Patent
1998-08-20
2000-12-26
Koslow, C. Melissa
Compositions
Organic luminescent material containing compositions
Inspection penetrant compositions
25230116, 252 68, 252964, C09K 1106
Patent
active
061653845
ABSTRACT:
A fluorescent dye composition for inclusion in a fluid for leak detection applications is provided which is responsive to a broad range of UVA, blue, and UVA-blue light sources. The composition comprises a mixture of a perylene dye, a naphthalimide dye, and a hydrocarbon-based fluid, wherein the combination of the perylene dye, the naphthalimide dye and the hydrocarbon-based fluid are miscible in the fluid. A fluorescent dye composition is also provided that is effective for all automotive working fluids, including heavy lubricants and transmission fluids, synthetic lubricants and internal combustion oils, refrigerants, liquid and gaseous fuels, and hydraulic fluids. A fluorescent dye composition is also provided containing only a combination of perylene dye and naphthalimide dye.
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Cooper B. William
Duerr John T.
Koslow C. Melissa
Spectronics Corporation
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