The flame retardant 2-(6-oxido-6 H-dibenz [c, e][1, 2] oxaphosphorin-6-yl)-methanol (ODOPM) for epoxy resins was prepared by the reaction of 2-(2-hydroxyphenyl) phenylphosphonic acid (HBP) with paraformaldehyde. The syntheses method is simple and can lower the production costs than conventional method. The basic solubilities data of ODOPM in water (303.57 to 361.63) K as required in the new process and in p-xylene ( ...
