C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 7/50 (2006.01) C11D 3/16 (2006.01) C11D 3/39 (2006.01) C11D 3/43 (2006.01)
Patent
CA 2504646
A cleaning composition is presented which surprisingly exhibit increased cleaning performance as the amount of solubilizing coupler is increased beyond that necessary to fully solubilize a very slightly water-soluble organic solvent component. The composition comprises: a) an organic solvent having a surface tension of no more than about 30 dynes/cm at 0.1 weight percent in water, and which has a water solubility of between 0.002 and 0.200 percent by weight; b) an amine oxide coupler present at a weight which is at least three times that required to completely solubilize the organic solvent, said coupler increasing the cleaning ability of the composition, as the concentration of the coupler increases; c) a first organic acid capable of producing a pH in water no higher than 5.0 the first organic acid selected from the group consisting of acids within the general formula R4COOH where R4 is selected from the group consisting of C2-C20 hydroxyalkyl groups and alkyl groups; and d) a second organic acid capable of producing a pH in water ranging from 5.0 to 6.9 the organic solvent and the second organic acid present in a weight ratio ranging from 1.0:1.0 to 2.0:1.0 said second acid selected from the group consisting of organic acids within the general formula R5COOH wherein R5 is selected from the group consisting of C1-C5 alkyl groups. A method of use of the composition to remove soap scum is also described.
Liu Augustine
Mlinar Jerry W.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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