Phosphorus-modified epoxy resin mixtures of epoxy resins, phosphorus-containing compounds and a hardener, a process for their preparation and their use

摘要

Fire-resistant epoxy resin mixtures (ERM), containing (a)epoxy resin, (b) a phosphorus compound of formula (I) or (II) and (c) a hardener, in which R = H or 1-18C linear or branched alkyl, cycloalkyl, aryl or alkylaryl; R' = 1-18C linear or branched alkylene, cycloalkylene, arylene or alkylarylene. Also claimed are (i) a process for the production of ERM by reacting (a) with (b) and then adding (c); (ii) prepregs and composites containing ERM and inorganic or organic reinforcing fibres, non-wovens or woven fabric; (iii) printed circuit boards made from ERM and woven glass fibre fabrics.