Cleaning and liquid contact with solids – Processes – Paints – varnishes – lacquers – or enamels – removal
Reexamination Certificate
2005-02-22
2005-02-22
Carrillo, Sharidan (Department: 1746)
Cleaning and liquid contact with solids
Processes
Paints, varnishes, lacquers, or enamels, removal
C134S010000, C134S012000, C134S040000, C210S702000, C210S708000, C210S712000, C210S723000, C210S732000, C210S734000
Reexamination Certificate
active
06858093
ABSTRACT:
A composition and method for treating oversprayed paints in paint spray booths is provided. The composition includes an aqueous solution of a compound such as chitosan, and a complex metal salt, such as aluminum chlorohydrate, capable of flocculating the oversprayed paint, and optionally, bentonite clay. The composition is useful for detackifying and flocculating oversprayed paint, and is particularly useful as a liquid concentrate for the addition to wash systems in paint spray booths for water-based and solvent-based paints. The composition is also useful in decreasing the time for phase separation of the organic phase and the aqueous phase in solvent-based removal processes.
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Albu Michael L.
Beauchamp Phillip J.
Carrillo Sharidan
PPG Industries Ohio Inc.
Uhl William J.
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