| abstract |
The present invention relates to a masterbatch composition usable in extrusion and foaming of a polyester resin, and a method for producing a polyester resin-foam sheet using same. Specifically, the masterbatch composition comprises: a carrier resin; and 1-30 wt% of a polyfunctional compound, wherein the carrier resin may comprise 70-99 wt% of a polyester resin having a melting point of 200°C or less, or 55-85 wt% of a polyester resin having a melting point exceeding 200°C, and 10-40 wt% of a polyolefin resin. |