| 摘要 |
PURPOSE: To provide a composition useful for removing stains from hard surfaces. CONSTITUTION: This composition contains reaction products of an alkylamine or dialkylamine with a phosphonic acid and/or an orthophosphoric acid. Stains are removed from hard surfaces by applying a liq. contg. 1-60 wt.% reaction products of an alkylamine with a phosphonic acid on hard surfaces. |
