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    • 99. 发明授权
    • Aqueous microemulsions comprising alkoxylated alcohol nonionic
surfactant in substainially water-insoluble solvent and oil
    • 水性微乳液,其包含在不规则的水不溶性溶剂和油中的烷氧基化醇非离子表面活性剂
    • US5736500A
    • 1998-04-07
    • US413069
    • 1995-03-29
    • Donald Michael FarnworthAlexander Martin
    • Donald Michael FarnworthAlexander Martin
    • C11D1/66C11D1/02C11D1/72C11D1/83C11D3/18C11D3/20C11D3/43C11D17/00C11D17/08C11D3/44
    • C11D3/43C11D1/72C11D1/83C11D17/0021C11D1/02
    • Improved microemulsions having a lower level of solvent, a lower level of oil, a more robust formulation and/or exhibiting equivalent if not better performance on fatty soils can be obtained by simultaneous selection of specific surfactants, specific oils and specific solvents. When all three of these components are selected in the manner described herein, a synergistic benefit is attained. The present invention provides a liquid, aqueous cleaning composition in the form of a stable emulsion having a dispersed phase diameter of 10-100 nanometres comprising: a) at least 30 wt % water, b) at least l wt % but not more than 40 wt % of a surfactant system comprising at least one alkoxylated alcohol nonionic surfactant and not more than 10 wt % on alkoxylated alcohol nonionic surfactant of anionic surfactant, c) at least 2 wt % but not more than 20 wt % of a solvent having a solubility of less than 12% w/w in water, and, d) at least 0.2 wt % but less than 10 wt % of a substantially water-insoluble oil which is a solvent for fats.
    • 通过同时选择特定的表面活性剂,特定油和特定溶剂,可以获得具有较低水平的溶剂,较低水平的油,更稳定的制剂和/或在脂肪土壤上显示相当的(如果不是更好的性能)的改进的微乳液。 当以本文所述的方式选择这三种组分时,可获得协同效益。 本发明提供了具有10-100纳米分散相直径的稳定乳液形式的液体水性清洁组合物,其包含:a)至少30重量%的水,b)至少1重量%但不超过40重量% wt%的包含至少一种烷氧基化醇非离子表面活性剂和不大于10重量%的阴离子表面活性剂的烷氧基化醇非离子表面活性剂的表面活性剂体系,c)至少2重量%但不大于20重量%的具有溶解度的溶剂 在水中小于12%w / w,以及​​d)作为脂肪溶剂的基本上不溶于水的油的至少0.2wt%但小于10wt%。