Title (en)

Process and mixer for preparing cellular pastes , in particular foamed plaster

Title (de)

Verfahren zur Herstellung poriger Pasten, insbesondere porigem Gipsbrei und Mischer

Title (fr)

Procédé et mélangeur pour l'obtention de pâtes poreuses , en particulier de plâtre cellulaire

Publication

EP 0972621 A3 20010816 (DE)

Application

EP 99110837 A 19990605

Priority

DE 19830665 A 19980709

Abstract (en)

[origin: EP0972621A2] A gas is introduced into the paste via at least one fine porous wall section (23) in one of the mixing chambers, the gas being at a greater pressure than that inside the chamber. An Independent claim is also included for the mixer used to prepare the paste.

IPC 1-7

B28C 5/38; B28C 5/16; B01F 3/06; B01F 7/00

IPC 8 full level

B01F 23/30 (2022.01); B28C 5/16 (2006.01); B28C 5/38 (2006.01)

CPC (source: EP)

B01F 23/30 (2022.01); B01F 27/27 (2022.01); B28C 5/383 (2013.01)

Citation (search report)

• [XA] US 1769309 A 19300701 - RICE JOHN A, et al
• [XA] FR 2089457 A5 19720107 - KNAUF WESTDEUTSCHE GIPS
• [X] FR 1231620 A 19600930
• [XA] EP 0438772 A1 19910731 - DRAISWERKE GMBH [DE]
• [A] DE 3506209 A1 19860828 - HAASE WILHELM
• [DA] EP 0305707 A2 19890308 - BABCOCK BSH AG [DE]

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0972621 A2 20000119; EP 0972621 A3 20010816; EP 0972621 B1 20030903; AT E248692 T1 20030915; DE 19830665 A1 20000120; DE 19830665 C2 20030828; DE 59906829 D1 20031009; DK 0972621 T3 20040105; ES 2207068 T3 20040516

DOCDB simple family (application)

EP 99110837 A 19990605; AT 99110837 T 19990605; DE 19830665 A 19980709; DE 59906829 T 19990605; DK 99110837 T 19990605; ES 99110837 T 19990605