| 摘要 |
<p>The present invention relates to the preparation of organophosphorus compounds, especially 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO) and derivatives thereof, which have been known for many years in the prior art. They are preferably used as additives for polymers. Especially the use of DOPO and derivatives thereof as flame retardants for polymers, for example polyesters, polyamides, epoxy resins, has been found to be advantageous.</p> |
