Cleaning and liquid contact with solids – Processes – Paints – varnishes – lacquers – or enamels – removal
Patent
1992-07-15
1994-08-02
Breneman, R. Bruce
Cleaning and liquid contact with solids
Processes
Paints, varnishes, lacquers, or enamels, removal
134 10, 134 12, 252DIG8, 252153, 252162, 252170, 252171, 252173, 252544, B08B 700, C09D 900, C11D 750
Patent
active
053342550
ABSTRACT:
Methods for removing and reclaiming excess paint from a paint spray booth includes entraining over-sprayed paint particles in a stream of air passing though the pain spray booth and causing the entrained over sprayed paint particles to come into contact with a flowing flood sheet within the paint spray booth such that a substantial portion of the paint particles are solubilized within the flowing aqueous flood sheet and are thereby removed from the stream of air. The solubilized paint particles are then separated and collected from the aqueous flood sheet so as to be reclaimed for future use, whereas the aqueous flood sheet is then recycled to the paint spray booth after the paint particles have been separated therefrom. To permit the reclamation of paint particles, the flood sheet includes an aqueous paint carrier having at least one of an aprotic heterocyclic oxygenate, a C.sub.4 -C.sub.6, lactone or a cyclic carbonate together with at least one organic solvent.
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James Lawrence E.
Walsh William C.
BASF Corporation
Breneman R. Bruce
El-Arini Zeinab
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