Filament for 3D printer modeling

摘要

PROBLEM TO BE SOLVED: To provide a three-dimensional printer shaping filament capable of producing a shaped article having low odor, exhibiting extremely low reduction in toughness by hydrolysis, and being lightweight and flexible.;SOLUTION: A three-dimensional printer shaping filament comprises a propylene-based resin composition including a propylene-based copolymer that contains a constitution unit derived from propylene, and a constitution unit derived from α-olefin having 2 to 20 carbon atoms, excluding the propylene, and satisfies the following requirements (a), (b), (c) and (d). (a) Intrinsic viscosity [η] is 0.1 to 5.0 dl/g. (b) Molecular weight distribution (Mw/Mn) is 1.0 to 3.5. (c) Melting point (Tm) measured by DSC is 100°C or more and less than 165°C, or is not substantially observed. (d) Density is 810 to 880 Kg/m3.;SELECTED DRAWING: None;COPYRIGHT: (C)2019,JPO&INPIT