Process of controlling organic coatings in aqueous spray...

Details Process of controlling organic coatings in aqueous spray... Process of controlling organic coatings in aqueous spray...

B - Operations, Transporting

08

B

117/57

B08B 3/08 (2006.01) C09D 7/00 (2006.01)

Patent

CA 1114685

PROCESS OF CONTROLLING ORGANIC COATINGS IN AQUEOUS SPRAY BOOTH SYSTEMS ABSTRACT A process is described wherein oversprayed organic coatings are controlled in an aqueous spray booth system by adding to the water spray supply an effective amount of a mixture of (1) a long chain surface active nitrogen derivative and (2) at least one member selected from the class of polyvalent water soluble or dispersible metal salts, nonionic high molecular weight polymers, anionic high molecular weight polymers, or a blend of nonionic and anionic high molecular weight polymers. The mixture is added to the water in the proportions of from about 0.05% by weight to 2% by weight of the solution. The method, which works with solvent-borne coatings and water-borne coatings results in rendering the organic coatings non- sticky, non-tacky and separable as a readily handled sludge.

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