Abstract: Disclosed are a polyester nonwoven fabric which can be used as an useful primary backing substrate for a carpet since it exhibits good physical properties even after tufting process, and a method for manufacturing the same. The polyester nonwoven fabric of the present invention comprises an one-component filament and a sheath-core type filament both of which have a fineness of 4 to 10 denier. The one-component filament comprises a first polyester polymer having a melting point of 250° C. or higher, the sheath-core type filament comprises the first polyester polymer of 70 to 95 wt % as a core component and a second polyester polymer of 5 to 30 wt % as a sheath component, and a melting point of the second polyester polymer is lower than the melting point of the first polyester polymer by 20° C. or more.

Abstract: The resin composition for preparing an internal box of a refrigerator according to the present invention comprises (A) a graft polymer obtained by grafting of a monomer mixture comprising a vinyl cyanide compound and an aromatic vinyl compound to a conjugated diene rubber, (B) a graft polymer obtained by grafting a monomer mixture comprising a vinyl cyanide compound and an aromatic vinyl compound to an acrylic rubber, (C) a copolymer of about 40.about.about 50% by weight of a vinyl cyanide compound and about 60.about.about 50% by weight of an aromatic vinyl compound, and (D) a copolymer of about 30.about.about 35% by weight of a vinyl cyanide compound and about 70.about.about 65% by weight of an aromatic vinyl compound.