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    • 9. 发明申请
    • PROCESS FOR REMOVING FINE PARTICULATE SOIL FROM HARD SURFACES
    • 从硬表面去除细颗粒土的方法
    • WO01054836A1
    • 2001-08-02
    • PCT/US2001/002870
    • 2001-01-29
    • B08B7/00C09D5/00C11D1/88C11D3/22C11D3/37C11D3/384C11D11/00B08B3/00B08B3/14C23D17/00
    • C11D1/88B08B7/0014C09D5/008C11D3/222C11D3/3719C11D3/3753C11D3/3776C11D3/384C11D11/0023C11D11/0035C11D11/0058
    • Many prior art processes for cleaning predominantly organic hard surfaces have been found to be considerably less effective in removing very fine particles on such surfaces than are the best cleaners for metallic surfaces. However, it has been found, and forms the basis of this invention, that fine particles can be removed effectively from organic surfaces by an indirect process of first forming a thin solid coating over the surface and then removing the solid coating, into which the fine particles that formerly contaminated the surface to be cleaned have presumably become incorporated. Substantially hydrolyzed poly (vinyl acetate) has been found particularly useful for forming the thin solid coating when this coating is to be removed by treatment with an acidic aqueous solution; acrylate polymers are preferred if the solid coating is to be removed by an alkaline aqueous solution. In either instance, in order to obtain good wetting without damaging the surface to be cleaned, the material that forms the bulk of the solid coating is preferably applied to the surface to be cleaned in an aqueous solution or dispersion that also contains surfactant molecules that include imidazoline moieties. A method of quantifying the degree of removal of solid particles is also provided.
    • 已经发现用于清洁主要有机硬表面的许多现有技术方法在除去金属表面的最佳清洁剂之后,在除去这些表面上的非常细小的颗粒方面相当不太有效。 然而,已经发现并形成本发明的基础,可以通过间接方法从有机表面有效地除去细颗粒,所述间接方法首先在表面上形成薄的固体涂层,然后除去固体涂层,其中精细 以前被污染的待清洁表面的颗粒大概已被纳入。 已经发现基本上水解的聚(乙酸乙烯酯)在通过用酸性水溶液处理除去该涂层时可以形成薄的固体涂层; 丙烯酸酯聚合物是优选的,如果固体涂料要被碱性水溶液除去。 在任一情况下,为了获得良好的润湿性而不损坏要清洁的表面,形成固体涂层的主体的材料优选地应用于还含有表面活性剂分子的水溶液或分散体中的待清洁表面 咪唑啉部分。 还提供了定量固体颗粒去除程度的方法。