Polycarboxy-triphenyl phosphates
Abstract
Abstract 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. WHEREIN N1, N2 AND N3 ARE INDIVIDUALLY ZERO OR AN INTEGER OF UP TO 2, AND N1 + N2 + N3 IS 2 OR MORE; M1, M2 AND M3 ARE INDIVIDUALLY ZERO OR AN INTEGER OF UP TO 2, AND N1 + M1, N2 + M2 AND N3 + M3 DO INDIVIDUALLY NOT EXCEED 3; AND THE SUBSTITUTED POSITIONS OF THE CARBOXYL GROUPS ARE IN THE 3-, 4- OR 5-POSITIONS OF THE INDIVIDUAL PHENYL GROUPS.
Inventors
- 👤 Ken Ito
- 👤 Hiroshi Kaminaka
- 👤 Norio Kotera
- 👤 Hiroshi Kuruma
- 👤 Yoshiro Murata
Bibliographic Details
Claims Analysis
Total Claims: 8References Cited (Backward Citations)
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