Composition for producing ceramic parts

Composition comprises (a) 25-65 vol.% of a sinterable ceramic powder or a mixture of a ceramic and a metal powder, and (b) 35-75 vol.% of a mixture of (b1) 20-35 wt.% of a polyolefin wax with e.g. a drop point of 104-117[deg] C, (b2) 1-12 wt.% of a polyolefin with a thickness of 0.915-0.935 g/cm 3>and a melting point of 100-145[deg] C, (b3) 5-15 wt.% of a polyvinyl-butyral resin with a melting point of 135-210[deg] C, (b4) 40-60 wt.% of PEG with an weight average molecular weight of 3500-20000 g/mole and (b5) 1-10 wt.% of a 10-24C-fatty acid, as binder. Composition comprises (a) 25-65 vol.% of a sinterable ceramic powder or a mixture of a ceramic and a metal powder, and (b) 35-75 vol.% of a mixture of (b1) 20-35 wt.% of a polyolefin wax with a drop point of 104-117[deg] C, an acid number of 16-27 mg potassium hydroxide/g, a saponification value of 0-95 mg potassium hydroxide/g, a thickness of 0.91-0.97 g/cm 3>and a viscosity of 100-700 mPa.s at 140[deg] C, (b2) 1-12 wt.% of a polyolefin with a thickness of 0.915-0.935 g/cm 3>and a melting point of 100-145[deg] C, (b3) 5-15 wt.% of a polyvinyl-butyral resin with a melting point of 135-210[deg] C, (b4) 40-60 wt.% of PEG with an weight average molecular weight of 3500-20000 g/mole and (b5) 1-10 wt.% of a 10-24C-fatty acid, as binder. An independent claim is included for preparing the composition comprising mixing of the components (b1)-(b4) at 110-160[deg] C and subsequently mixing the obtained mixture with (b5) and (a). Die vorliegende Erfindung betrifft eine Zusammensetzung zur Herstellung von Keramikteilen, insbesondere mittels Keramikspritzgussverfahrens, ein Verfahren zu deren Herstellung sowie deren Verwendung