POLYCARBOXY-TRIPHENYL PHOSPHATES

摘要

Polycarboxy-triphenyl phosphates are prepared by oxidizing corresponding polymethyltriphenyl phosphates. They are fire resistant and stable, and are useful not only as fire-retarding agents for high polymer materials but also as intermediates for various synthetic products. When these esters and hydrolyzed, corresponding aromatic hydroxycarboxylic acids can be obtained with advantages.