| 摘要 |
<p>This invention is directed to the discovery that ethylene - acid copolymers that have low melt flow index MFI (namely less than 100 g/10 min measured according to ASTM D1238 at 190 °C, 2.16kg) even with low acid content (such as less than 20 wt.%) can provide stable aqueous dispersions directly in aqueous media (i.e. free from any other solvent) with less than 1 wt.% non-dispersibles in single bases even at mild dispersion process conditions, at temperature less than 100 °C, atmospheric pressure, and with low agitation speed.</p> |
