Patent ID: 7879155
Filing Date: 2011-02-01
Classification: B08B,B09B,B29B,B29K,B29L,C08J,C09D,Y02P,Y02W

Abstract:
1. A process for removing a paint coating from a plastic automobile component comprising the steps of: providing a plastic automobile component at least partially coated with paint; immersing the plastic automobile component into a first non-hazardous aqueous solution comprising: at least one aromatic alcohol; an alpha-hydroxy acid; an anionic surfactant; 2-mercaptobenzothiazole or salts thereof; a xylene; and water for from about five minutes to about 120 minutes and wherein the xylene comprises from about 0.1% to about 1.0% by weight of the solution; and removing the paint from the plastic automobile component using the immersing step; and wherein plastic automobile component is rinsed in water and the water collected after the rinsing is liquid waste and wherein the liquid waste is neutralized with a base such that, after treatment with the base, the liquid waste has undetectable concentrations of acetone, bromobenzene, benzene, bromodichloromethane, bromoform, bromomethane, 2-butanone, carbon tetrachloride, chlorobenzene, chlorodibromomethane, chloroethane, chloroform, chloromethane, 2-chlorotoluene, 4-chlorotoluene, cis-1,2 dichloroethene, trans-1,2-dichloroethene, dibromomethane, 1,2-dibromo-3-chloropropane, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene, 1,1-dichloroethane, 1,2-dichloroethane, 1,1-dichloroethene, 1,2-dichloropropane, 1,3-dichloropropane, 2,2-dichloropropane, 1,1-dichloropropene, cis-1,3-dichloropropene, trans-1,3-dichloropropene, ethylbenzene, ethylenedibromide, fluorotrichloromethane, 2-hexanone, hexachlorobutadiene, isopropylbenzene, 4-methyl-2-pentanone, methylene chloride, methyl-t-butylether, n-butylbenzene, n-propylbenzene, naphthalene, m-xylene, p-xylene, p-isopropyltoluene, o-xylene, sec-butylbenzene, styrene, tert-butylbenzene, tetrachloroethene, 1,1,1,2-tetrachloroethane, 1,1,2,2-tetrachloroethane, toluene, 1,2,3-trichlorobenzene, 1,2,4-trichlorobenzene, 1,1,1-trichloroethane, 1,1,2-trichloroethane, trichloroethane, 1,2,3-trichloropropane, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, and vinyl chloride.