| abstract |
The invention discloses a phosphorus-containing compound, a phosphorus-containing flame retardant and a method for preparing the same. A resin composition is also disclosed. The resin composition includes the phosphorus-containing flame retardant and a resin having an unsaturated bond. The resin composition can be made into various articles, such as prepreg, resin film, self-adhesive copper foil, laminated board or printed circuit board, and the prepreg has the adhesiveness, flame retardancy, alkali resistance, glass transition temperature, and heat. At least one, more, or all of dimensional stability (i.e., dimensional change rate after heating), heat resistance after moisture absorption, copper foil tension, dielectric constant, and dielectric loss are unexpectedly improved. |