| 摘要 |
<p>The aerosol comprises a foaming liquid product contg. a propellant such as a gas under pressure, contained for example, in a reservoir provided with a spray jet and a control valve. The liquid has the necessary properties for removing paint, lacquer, inks, tars, without attacking the surface to be cleaned. The pref. active agent is methylene chloride and methanol. The compsn. pref. contains a cellulose deriv. thickener. The product provides a simple and effective means of removing graffiti and stains and reacts in 10-12 mins. with considerable advantage over present methods.</p> |
