FILAMENT FOR MATERIAL EXTRUSION-TYPE THREE-DIMENSIONAL PRINTERS, WOUND BODY COMPOSED OF SAID FILAMENT, CARTRIDGE CONTAINING SAID FILAMENT, AND METHOD FOR PRODUCING RESIN MOLDED ARTICLE USING SAID FILAMENT

摘要

An object of the invention is to provide a filament for a material extrusion-type three-dimensional printer, which filament contains an aromatic polyester resin, and which overcomes the shortcomings of a filament for a material extrusion-type three-dimensional printer that is composed of an ABS resin. Provided is a filament for a material extrusion-type three-dimensional printer, the filament including an aromatic polyester resin containing 50mol% or more of aromatic dicarboxylic acid units, and 3mol% or more of isophthalic acid units, with respect to the total amount of dicarboxylic acid units. The aromatic polyester resin preferably has a melt flow rate (230°C, 2.16 kgf) of 7 g/10 min or more, and an intrinsic viscosity of 0.80 dL/g or less.