C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 7/28 (2006.01) B08B 3/08 (2006.01) C11D 7/24 (2006.01) C11D 7/26 (2006.01) C23G 5/024 (2006.01)
Patent
CA 2530180
The present invention provides a method for cleaning and rinsing an article, with excellent cleaning and rinsing performance. The present invention provides a method for cleaning and rinsing an article, characterized by comprising a cleaning step of contacting an article having a contaminant attached, with a hydrocarbon solvent containing an aromatic hydrocarbon or a glycol ether, and a rinsing step of contacting it with a fluorinated ether, wherein the fluorinated ether is a compound represented by the formula 1: R1-O-R2 Formula 1 wherein each of R1 and R2 which are independent of each other, is a fluorinated alkyl group, wherein the number of fluorine atoms contained in each of R1 and R2 is at least one, and the total number of carbon atoms contained in R1 and R2 is from 4 to 8.
L'invention concerne un procédé permettant de nettoyer/rincer des articles, qui met en oeuvre d'excellentes propriétés de nettoyage et de rinçage. Ledit procédé comprend une étape de nettoyage dans laquelle un article auquel un contaminant adhère est mis en contact avec un solvant hydrocarboné contenant un hydrocarbure aromatique ou un glycol éther; et une étape de rinçage dans laquelle l'article est mis en contact avec un éther contenant un fluor caractérisé en ce que cet éther est un composé représenté par la formule (1) suivante: R?1¿-O-R?2¿. Dans cette formule, R?1¿ et R?2¿ représentent indépendamment un groupe alkyle contenant un fluor et contiennent un ou plusieurs atome(s) de fluor, et le nombre totale d'atomes de fluor contenus par R1 et R2 étant de 4-8.
Hanada Tsuyoshi
Okamoto Hidekazu
Shigematsu Maki
Tsuzaki Masaaki
Asahi Glass Company Limited
Smart & Biggar
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