Binder component for a particulate feedstock compound for use in a shaping and sintering process, particulate feedstock compound, and shaping and sintering process

A process comprising the steps of:

• merging a plurality of particles of a particulate feedstock compound to obtain a green part, the particulate feedstock compound containing,
• a) sinterable non-organic particles dispersed throughout the particulate feedstock compound, the sinterable non-organic particles having a particle size distribution such that at least 80% of the particles have a maximum particle size Amax in the range of 100 nm to 200 μm;
• and
• b) a binder component b), the binder component b) containing, based on the total volume of the binder component b),
• b-i) 3 to 70% by volume of a polyolefin, a polyolefin wax or an oxidized polyolefin wax, and
• b-ii) 30 to 97% by volume of a non-polymeric wax or non-polymeric wax-type substance
• partially debinding the green part by selectively removing the non-polymeric wax or non-polymeric wax-type substance, using a solvent to obtain a brown part comprising the sinterable non-organic powder particles a) bound to each other by the polyolefin, polyolefin wax or oxidized polyolefin wax b-i), and
• sintering the brown part to obtain a sintered part.

A green part obtained by merging a plurality of particles of a particulate feedstock compound, the particulate feedstock compound containing,

• a) sinterable non-organic particles dispersed throughout the particulate feedstock compound, the sinterable non-organic particles having a particle size distribution such that at least 80% of the particles have a maximum particle size Amax in the range of 100 nm to 200 μm;
• and
• b) a binder component b), the binder component b) containing, based on the total volume of the binder component b),
• b-i) 3 to 70% by volume of a polyolefin, a polyolefin wax or an oxidized polyolefin wax, and
• b-ii) 30 to 97% by volume of a non-polymeric wax or non-polymeric wax-type substance.