| 摘要 |
<p>A process for post-treatment of a sizing agent containing residual amounts of organic solvent from the manufacture of said sizing agent to substantially reduce or eliminate the solvent therefrom, wherein a substantially aqueous medium is added to the sizing agent, the mixture thus formed is subjected to an intense mixing operation by means of a dispersing mixer (1), and the aqueous medium is evaporated from the mixture at atmospheric or sub-atmospheric pressure and at a temperature where the sizing agent is in a molten state, the evaporating aqueous medium entrained said organic solvent and other volatile organic compounds to remove the same from the sizing agent. A post-treated sizing agent made by the post-treatment processes.</p> |
