C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 7/30 (2006.01) C07C 43/12 (2006.01) C07D 207/10 (2006.01) C07D 211/38 (2006.01) C07D 265/30 (2006.01) C11D 7/50 (2006.01) C11D 11/00 (2006.01) C23G 5/032 (2006.01) D06L 1/02 (2006.01) C11D 7/28 (2006.01) C11D 7/32 (2006.01) C11D 7/34 (2006.01)
Patent
CA 2239523
A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene- containing perfluoroalkane compound, the compound optionally containing additional catenary heteroatoms. The compounds exhibit good solvency properties while being environmentally acceptable.
Ce procédé sert à enlever les agents contaminants de la surface d'un substrat et consiste à mettre ce substrat en contact avec une composition nettoyante comprenant au moins un composé perfluoroalcane à substitution mono, di ou trialcoxy, un composé perfluorocycloalcane, un composé perfluoroalcane contenant perfluorocycloalkyle ou un composé perfluoroalcane contenant perfluorocycloalkylène, ce composé renfermant éventuellement des hétéroatomes caténaires additionnels. De tels composés possèdent de bonnes propriétés dissolvantes tout en étant acceptables pour l'environnement.
Flynn Richard M.
Grenfell Mark W.
Milbrath Dean S.
Moore George G. I.
Owens John G.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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