The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2012
Filed:
Aug. 12, 2010
David Fluck, Elkton, MD (US);
Amit Sehgal, Marlton, NJ (US);
Satyen Trivedi, East Windsor, NJ (US);
Rhodia Operations, Aubervilliers, FR;
Abstract
A method for treating a contaminated substrate comprising the steps of contacting an emulsion to a substrate surface soiled with one or more contaminants, the emulsion comprising a blend of dibasic esters, whereby the emulsion is capable of emulsifying all or some of the contaminants, forming a resulting emulsion; removing substantially all of the resulting emulsion from the substrate surface; and, optionally, in recovering the contaminant, adding an amount of water or a solvent to the resulting emulsion effective to form at least a first phase layer comprising a substantial amount of the contaminant and a second phase layer comprising a substantial amount of the emulsion. The dibasic esters can be a blend of adipic, glutaric, and succinic diacids, and, in one particular embodiment, the blend comprises dialkyl methylglutarate and dialkyl ethylsuccinate, wherein the alkyl groups individually comprise a C-Chydrocarbon group. The one or more surfactants and additional components can be added.