| 摘要 |
<p>This invention relates to a novel, efficient, economic and general-purpose process for isolating monophenolic-bisaryl triazine compounds from polyphenolic-triazines compounds and other impurities. More specifically, this invention relates to a process for isolating the monophenolic-bisaryl triazine compounds by contracting it with a base, an alcohol or a hydrocarbon solvent.</p> |
