| 摘要 |
<p>1,230,172. Organic dispersions. ALBRIGHT & WILSON (MFG.) Ltd. 21 Feb., 1969 [28 Feb., 1968], No. 9655/68. Heading B1V. [Also in Divisions C1 and and C7] Alluvial silt, kaolin or size are dispersed in water using a composition comprising an aminomethylene phosphonic acid or an alkali metal or ammonium salt thereof and one of adipic, succinic, azelaic, suberic, sebacic, pimelic, glutaric and hydroxypolycarboxylic acids, such as citric or tartaric acid, or an alkali metal or ammonium salt thereof. Preferred phosphonic acids are amino tris (methylene phosphonic acid) and ethylene diamine tetrakis (methylene phosphonic acid).</p> |
