A resin composition and uses thereof

A resin composition comprising an epoxy resin and a curing agent, wherein the content of the curing agent per 100 parts by weight of epoxy resin to about 10 parts by weight to about 200 parts by weight and comprising a first styrene - maleic anhydride copolymer polymers (SMA) and the second a styrene - maleic anhydride copolymer, the first styrene - maleic anhydride co-polymer of styrene and maleic anhydride molar ratio of m1, the second styrene - styrene maleic anhydride copolymer and the molar ratio of maleic anhydride m2, and m1-m2≥3.