▎ 摘　　要

NOVELTY - A filament has cylindrical geometry or essentially cylindrical geometry and diameter of 0.5-5.0 mm and comprises at least 50.0 wt.% at least one polyamide comprising repeating unit (I), and at least 30.0 mol% 4,4'-diaminodicyclohexylmethane moiety in a trans/trans configuration, based on the total number of moles of the 4,4'- diaminodicyclohexylmethane moiety in the polyamide. USE - Filament used for additive manufacturing, preferably fused filament fabrication for manufacturing three-dimensional article,component or composite material used in oil and gas applications, automotive applications, electric and electronic applications, aerospace, medical and consumer products (all claimed). Uses include but are not limited to pans (e.g. oil pans), panels e.g. exterior component panels such as quarter panels, trunk, hood and interior component panels such as door panels and dash panels, side-panels, mirrors, bumpers, bars e.g. torsion bars and sway bars, rods, suspensions components e.g. suspension rods, leaf springs, suspension arms, and turbo charger components e.g. housings, volutes, compressor wheels and impellers, chemical injection tubes, undersea umbilicals and hydraulic control line. ADVANTAGE - The filament has excellent printing ability, high glass transition temperature and low melting point. DETAILED DESCRIPTION - A filament has cylindrical geometry or essentially cylindrical geometry and diameter of 0.5-5.0 mm and comprising at least 50.0 wt.% at least one polyamide comprising repeating unit of formula (I), and at least 30.0 mol% 4,4'-diaminodicyclohexylmethane moiety in a trans/trans configuration, based on the total number of moles of the 4,4'- diaminodicyclohexylmethane moiety in the polyamide. n=12-20. INDEPENDENT CLAIMS are included for the following: additive manufacturing method for making three-dimensional (3D) article, which involves extruding the filament; and use of the polyamide for the preparation of the filament for manufacturing three-dimensional (3D) article, component or composite material.