NITROGEN-CONTAINING BRIDGED DERIVATIVES OF 6H-DIBENZ(E,E)(1,2)-OXAPHOSPHORINE-6-OXIDES METHOD FOR PRODUCTION AND USE THEREOF AS FLAME-RETARDANT AGENTS

摘要

The invention relates to nitrogen-containing bridged derivatives of 6H-dibenz[c,e][1,2]-oxaphosphorine-6-oxides method for production and use thereof as flame-retardant agents for polymers such as, for example, polyesters, polyamides, polycarbonates, polystyrols, polyethylenes, polypropylenes, phenol or epoxide resins. The derivatives have the formulas (I) and (II).