C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/44 (2006.01) C11D 1/12 (2006.01) C11D 1/66 (2006.01) C11D 3/43 (2006.01) C11D 7/52 (2006.01)
Patent
CA 2056425
Stable, aqueous cleaner/degreaser compositions formulated in the form of totally water soluble solutions comprise: (a) at least one sparingly water soluble organic solvent characterized by: (i) having a water solubility in the range of approximately 0.2 to approximately 6 weight percent: (ii) not being a hydrocarbon or halocarbon; (iii) having one or more similar or dissimilar oxy- gen, nitrogen, sulfur or phosphorous containing functional groups; (iv) being a solvent for hydrophobic soilants; and (v) being present in an amount exceeding its aqueous solubility; (b) a solubilizing additive consisting of from approximately 0.1 to approx- imately 100 weight percent of a surfactant and from 0 to approximately 99.9 weight percent of a coupler, the solubilizing additive being present in an amount not exceeding approximately tenfold that required to completely solubilize the organic solvent; and (c) water. Such compositions exhibit markedly superior cleaning/degreasing efficacy over that achievable with compositions con- taining infinitely water soluble organic solvents such as butyl cellosolve.
Buckeye International Inc.
Smart & Biggar
LandOfFree
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