Patent attributes
A filament containing a core material (CM) coated with a layer of shell material (SM), wherein the (CM) contains the components a) to c):a) 30 to 80% by volume, based on the total volume of the C) of at least one inorganic powder (IP),b) 20 to 70% by volume, based on the total volume of the CM of at least one binder (B) comprising component b1)b1) at least one polymer (P) andc) optionally at least one additive,wherein the at least one polymer (P) is a polyoxymethylene (POM) homopolymer, a POM copolymer or POM terpolymer and wherein at least some of the OH-end groups of the PO) homopolymer are capped,and the SM contains the components d) to f):d) 75 to 100% by volume, based on the total volume of the SM of at least one thermoplastic polymer,e) optionally at least one inorganic powder (IP), andf) optionally at least one additive, wherein the thickness of the layer of shell material is 0.05 to 0.5 mm.
