Method for masking and removing stains from rugged solid surfaces
    8.
    发明授权
    Method for masking and removing stains from rugged solid surfaces 失效
    从坚固的固体表面掩蔽和去除污渍的方法

    公开(公告)号:US07375069B2

    公开(公告)日:2008-05-20

    申请号:US11710338

    申请日:2007-02-23

    申请人: Nazim Z. Muradov

    发明人: Nazim Z. Muradov

    IPC分类号: C11D9/20 C11D7/26 C11D7/20

    摘要: Methods, compositions and kits for masking and subsequent removal of oil, grease, rust and other stains from a variety of rough solid surfaces, including, but not limited to stone, concrete, asphalt, stucco brick, and ceramic. The methods include coating the stains with an opaque or translucent thin film of a composition that makes the stain practically indistinguishable against the background, exposing the coated stain to the elements, such as, sunlight, air, moisture, resulting in spontaneous transformation, degradation and subsequent removal of the stains from the solid surfaces. The compositions include a photocatalyst by itself or the photocatalyst combined with at least one of, a sensitizer, a dopant, a mediator, a co-reagent, a pigment and a binder. The role of a photocatalyst is to produce highly reactive species or radicals and initiate the degradation of a stain upon exposure to elements, such as, sunlight, air and ambient humidity. Artificial light sources can be used instead of sunlight.

    摘要翻译: 用于掩蔽和随后从各种粗糙固体表面除去油,油脂,锈和其他污渍的方法,组合物和试剂盒,包括但不限于石,混凝土,沥青,灰泥砖和陶瓷。 所述方法包括用不透明或半透明的组合物薄膜涂覆污渍,使得染色实际上与背景无法区分,将涂覆的污渍暴露于诸如阳光,空气,水分的元素,导致自发转化,降解和 随后从固体表面除去污渍。 组合物包括其自身的光催化剂或与敏化剂,掺杂剂,介体,共试剂,颜料和粘合剂中的至少一种组合的光催化剂。 光催化剂的作用是产生高度反应性的物质或自由基,并且在暴露于诸如阳光,空气和环境湿度的元素时引发污点的降解。 可以使用人造光源代替阳光。