STERICALLY HINDERED PHENOLIC PHOSPHONATES AND FLAME RETARDANT POLYCARBONATE RESIN COMPOSITION CONTAINING THEM

摘要

A sterically hindered phenolic phosphonate-based flame retardant is provided to ensure excellent fire retardant effect, to prevent environmental contamination, and to be applicable to the thermalplastic flame retardant polycarbonate resin composition. A sterically hindered phenolic phosphonate-based flame retardant has a structure of chemical formula 1. In chemical formula 1, R1 is C1-C6 alkyl and C6-C14 aryl group; R2 is C1-C6 linear alkyl and C3-C6 branched alkyl group; and n is 1-3. A flame retardant polycarbonate-based resin composition comprises a base resin 100.0 parts by weight including a polycarbonate resin; and a sterically hindered phenolic phosphonate-based compound 0.5~20 parts by weight represented by chemical formula 1.