A electroless plating susceptive fire retardant polyphenylene ether resin comprising {TAIL ~ a polyphenylene ether resin}; a rubber modified resin comprising a grafted rubber phase comprising an elastomeric rubber having grafted thereto, in a specific grafting degree, a graft component composed of acrylonitrile units and vinyl aromatic compound units and a resin phase of a polymer or polymer mixture comprising acrylonitrile units and vinyl aromatic compound units; and optionally, {HEAD ~ a polystyrene resin} in specific proportions; and also comprising red phosphorus and a phosphoric acid ester in specific amounts 
A electroless plating susceptive fire retardant polyphenylene ether resin comprising { TAIL ~ a polyphenylene ether resin } ; a rubber modified resin comprising a grafted rubber phase comprising an elastomeric rubber having grafted thereto , in a specific grafting degree , a graft component composed of acrylonitrile units and vinyl aromatic compound units and a resin phase of a polymer or polymer mixture comprising acrylonitrile units and vinyl aromatic compound units ; and optionally , { HEAD ~ a polystyrene resin } in specific proportions ; and also comprising red phosphorus and a phosphoric acid ester in specific amounts
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