Additives comprising cellulose ethers for ceramics extrusion of

A process for the extrusion of ceramic masses or other masses which set as a result of baking or sintering, which comprises mixing a ceramic mass or other mass which sets as a result of baking or sintering with at least one water-soluble cellulose ether whose alkaline solution of 1.0 part by weight of cellulose ethers per 100 parts by weight of solution displays elastic properties in which the ratio of loss modulus G″ to storage modulus G′ (tan δ=G″/G′) of the solution at a temperature of 20° C.+/−1° C. when using a solvent comprising 98 parts by weight of water and 2 parts by weight of sodium hydroxide per 100 parts by weight of solvent in a rheological oscillation experiment as a function of the angular frequency ω in the linear viscoelastic region at angular frequencies of less than or equal to 100 rad/s has a value of less than 1.3 and with at least one compound selected from the group consisting of alumina, aluminum nitride and aluminum carbide, cordierite, mullite, silicon carbide, silicon boride, silicon nitride, titanium dioxide, titanium carbide, boron carbide, boron oxide, talc, silicon metal, carbon black, graphite, rare earth oxides and zeolites and subsequently extruding it.

(canceled)