Global Patent Index - EP 4387941 A1

EP 4387941 A1 20240626 - CERAMIC SLIP FOR PRECISION CASTING BASED ON A CAPILLARY SUSPENSION

Title (en)

CERAMIC SLIP FOR PRECISION CASTING BASED ON A CAPILLARY SUSPENSION

Title (de)

KERAMISCHER SCHLICKER FÜR DEN FEINGUSS AUF BASIS EINER KAPILLARSUSPENSION

Title (fr)

BARBOTINE CÉRAMIQUE DESTINÉE À LA COULÉE DE PRÉCISION BASÉE SUR UNE SUSPENSION CAPILLAIRE

Publication

EP 4387941 A1 20240626 (DE)

Application

EP 22765428 A 20220810

Priority

  • DE 102021121622 A 20210820
  • EP 2022072410 W 20220810

Abstract (en)

[origin: WO2023020905A1] The present invention relates to a ceramic slip for precision casting based on a capillary suspension, and to a method for producing at least one ceramic mould or at least one precision cast component using the ceramic slip. The present invention also relates to the use of the ceramic slip according to the invention for producing ceramic cast cores and further porous moulded bodies. The ceramic slip comprises a particle phase, a primary phase which contains a polar primary liquid, and a secondary phase which contains a secondary liquid that is not miscible with the primary liquid; wherein either the primary phase or the secondary phase, or wherein both the primary phase and the secondary phase, additionally contain at least one binder; wherein the proportion of the particle phase is 10-70 vol.%, the proportion of the primary liquid is 15-81 vol.%, the proportion of the secondary liquid is 1-15 vol.% and the proportion of the binder is 0.25-74 vol.%, each based on the total composition of the ceramic slip.

IPC 8 full level

C04B 35/111 (2006.01); B22C 1/00 (2006.01); B22C 1/16 (2006.01); B22C 9/04 (2006.01); C04B 35/14 (2006.01); C04B 35/18 (2006.01); C04B 35/48 (2006.01); C04B 35/486 (2006.01); C04B 35/626 (2006.01); C04B 35/63 (2006.01); C04B 35/632 (2006.01)

CPC (source: EP)

B22C 1/00 (2013.01); B22C 1/16 (2013.01); B22C 9/04 (2013.01); C04B 35/111 (2013.01); C04B 35/14 (2013.01); C04B 35/18 (2013.01); C04B 35/481 (2013.01); C04B 35/486 (2013.01); C04B 35/6263 (2013.01); C04B 35/6264 (2013.01); C04B 35/6303 (2013.01); C04B 35/6316 (2013.01); C04B 35/6325 (2013.01); C04B 35/447 (2013.01); C04B 35/56 (2013.01); C04B 35/58 (2013.01); C04B 35/63424 (2013.01); C04B 35/63436 (2013.01); C04B 35/63456 (2013.01); C04B 35/6365 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/6028 (2013.01); C04B 2235/606 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

DE 102021121622 A1 20230223; EP 4387941 A1 20240626; WO 2023020905 A1 20230223

DOCDB simple family (application)

DE 102021121622 A 20210820; EP 2022072410 W 20220810; EP 22765428 A 20220810