Global Patent Index - EP 4395974 A1

EP 4395974 A1 20240710 - PLANETARY ROLLER EXTRUDER FOR PROCESSING BIODEGRADABLE MATERIALS AND METHOD FOR CLEANING THE PLANETARY ROLLER EXTRUDER

Title (en)

PLANETARY ROLLER EXTRUDER FOR PROCESSING BIODEGRADABLE MATERIALS AND METHOD FOR CLEANING THE PLANETARY ROLLER EXTRUDER

Title (de)

PLANETWALZENEXTRUDER ZUM VERARBEITEN VON BIOLOGISCH ABBAUBAREN MATERIALIEN UND VERFAHREN ZUM REINIGEN DES PLANETWALZENEXTRUDERS

Title (fr)

EXTRUDEUSE PLANÉTAIRE CONÇUE POUR LE TRAITEMENT DE MATÉRIAUX BIODÉGRADABLES ET PROCÉDÉ DE NETTOYAGE DE CETTE EXTRUDEUSE PLANÉTAIRE

Publication

EP 4395974 A1 20240710 (DE)

Application

EP 22793524 A 20220921

Priority

  • DE 102021125395 A 20210930
  • EP 2022076167 W 20220921

Abstract (en)

[origin: WO2023052211A1] The invention relates to a planetary roller extruder (1) for the homogenisation, dispersion, pasteurisation and targeted temperature control of biodegradable materials which tend, during processing, to change their properties, in particular the properties which exclude further use after their processing, such as nutrients, in particular foodstuffs, or medicaments or pharmaceutical products, the planetary roller extruder (1) containing different regions, there being a flow duct (11) with various transitions from one region to the next region in the interior (15) of the planetary roller extruder (1), and parts being installed statically and movably. According to the invention, a seal (10) is installed between statically installed parts, by means of which seal the gaps or cavities present can be closed, and movable parts which are guided from the flow duct (11) in the interior (14) of the planetary roller extruder (1) outwards towards the surroundings (16) are sealed with a mechanical face seal, so that shoulders and/or notches along the flow faces in the transition region of the movable parts are avoided.

IPC 8 full level

B29C 48/44 (2019.01); B29B 7/48 (2006.01); B29B 7/80 (2006.01); B29C 48/00 (2019.01); B29C 48/25 (2019.01); B29C 48/27 (2019.01); B29C 48/385 (2019.01)

CPC (source: EP)

B29B 7/485 (2013.01); B29B 7/488 (2013.01); B29B 7/802 (2013.01); B29B 7/826 (2013.01); B29C 48/022 (2019.01); B29C 48/254 (2019.01); B29C 48/2715 (2019.01); B29C 48/385 (2019.01); B29C 48/44 (2019.01); B29B 7/728 (2013.01); B29K 2995/006 (2013.01)

Citation (search report)

See references of WO 2023052211A1

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 102021125395 A1 20230330; EP 4395974 A1 20240710; WO 2023052211 A1 20230406

DOCDB simple family (application)

DE 102021125395 A 20210930; EP 2022076167 W 20220921; EP 22793524 A 20220921