| 摘要 |
<p>The invention relates to clear and thickening aqueous compositions containing at least two non-ionic surfactants and at least one polyurethane composition consisting of at least one alkyl, aryl or arylalkyl grouping or a mixture of such groupings, at least one polyalkylene glycol grouping and at least one isocyanate grouping selected from 1-decyl isocyanate, 1-dodecyl isocyanate, mirystyl isocyanate, palmityl isocyanate, stearyl isocyanate, 1,4-butane di-isocyanate, 1,6-hexane diisocyanate, cycloaliphatic diisocyanates, isophorone diisocyanate, 1,3- and 1,4-cyclohexane diisocyanate, 4,4'diisocyanatodicyclohexylmethane, 1-methyl-2,4-diisocyanatocyclohexane and a mixture thereof with 1-methyl-2,6-diisocyanatocyclohexane, hexamethylene diisocyanate biuret, hexamethylene diisocyanate trimer, isophorone diisocyanate trimer, and mixtures thereof. The invention further relates to the use of said compositions for thickening acidic aqueous formulations while preserving the clear nature thereof. The resulting thickened clear acidic aqueous formulations are also part of the invention.</p> |
