| 摘要 |
Homogeneous liquid hard surface cleaning detergents are comprised of surfactant, hydrotrope, 10.1-19% sequestering builder, and 6-15% of solvent having a molar volume below about 200 cm<3>/gm . mol and Hansen's solubility parameters as follows: polarity parameter from zero to about 3.5 (cal./cm<3>)@ and hydrogen bonding parameter from zero to about 6 (cal./cm<3>)@. For solvents whose parameters are below about 2, an auxiliary solvent is often needed for solubilization in the formula. A preferred solvent is diethylene glycol mono-n-butyl ether. Cleaning performance at these concurrent high levels of builder and solvent is outstanding, especially for bathroom surfaces such as tubs and walls. |
