Patent ID: 6136220
Filing Date: 2000-10-24
Classification: B01D,B01F,C02F,C09D,Y10S

Abstract:
An aqueous composition for treating paint spray booth water comprising:about 30 to 60 percent by weight of water soluble cationic polymer having a molecular weight of about 1000 to about 600,000,about 0.1 to about 5 percent by weight of nonionic surfactant having an HLB of about 9 to 15, andabout 0.1 to about 5 percent by weight of amphoteric surfactant,wherein the water soluble cationic polymer comprises a condensation product of dimethylamine and epichlorohydrin, a condensation product of dimethylamine, epichlorohydrin, and ethylenediamine, or polydiallyldimethyl ammonium chloride, andwherein the amphoteric surfactant comprises a monosodium salt of alkyl imino acid, an iminodipropionate amphoteric, a sodium salt of capryl imidazoline derivative or a 2-alkyl imidazoline amphoteric.