Global Patent Index - EP 4196745 A1

EP 4196745 A1 20230621 - METHOD AND APPARATUS FOR ONLINE MONITORING OF FOAM QUALITY DURING FOAM PRODUCTION PROCESS

Title (en)

METHOD AND APPARATUS FOR ONLINE MONITORING OF FOAM QUALITY DURING FOAM PRODUCTION PROCESS

Title (de)

VERFAHREN UND VORRICHTUNG ZUR ONLINE-ÜBERWACHUNG DER SCHAUMQUALITÄT WÄHREND EINES SCHAUMHERSTELLUNGSPROZESSES

Title (fr)

PROCÉDÉ ET APPAREIL DE SURVEILLANCE EN LIGNE DE LA QUALITÉ DE MOUSSE PENDANT UN PROCESSUS DE PRODUCTION DE MOUSSE

Publication

EP 4196745 A1 20230621 (EN)

Application

EP 21746058 A 20210723

Priority

  • CN 202010801935 A 20200811
  • EP 20207120 A 20201112
  • EP 2021070647 W 20210723

Abstract (en)

[origin: WO2022033837A1] The present invention relates to a process and an apparatus for producing foam using a continuous foam block foaming method, and in particular to a method and an apparatus for online monitoring of foam quality during a foam production process. In the method for online monitoring of foam quality in the foam production process according to the present invention, raw materials for foam production are injected onto a transporting slab of a conveyor via a mixing nozzle disposed at one end of the conveyor, the method comprising: continuously obtaining profile data for a cross section of the foam at a predetermined location to generate a topography map for a surface of the foam, the predetermined location being one along an advancing path of the transporting slab; and detecting foam defects based on the topography map for the surface of the foam.

IPC 8 full level

G01B 11/25 (2006.01); B29B 7/72 (2006.01); B29B 7/74 (2006.01); B29B 7/94 (2006.01); B29C 44/28 (2006.01); B29C 44/46 (2006.01); B29C 44/60 (2006.01); C08G 18/00 (2006.01); C08L 75/04 (2006.01); G01B 11/245 (2006.01); G01B 17/06 (2006.01); G01N 21/84 (2006.01); G01N 21/89 (2006.01); G01N 21/892 (2006.01); G01N 29/04 (2006.01); G01N 29/06 (2006.01); G01N 29/265 (2006.01); G01N 29/44 (2006.01); B29K 75/00 (2006.01)

CPC (source: EP)

B29C 44/28 (2013.01); B29C 44/467 (2013.01); B29C 44/60 (2013.01); C08L 75/04 (2013.01); G01B 11/245 (2013.01); G01B 11/2522 (2013.01); G01B 17/06 (2013.01); G01N 21/8901 (2013.01); G01N 21/8914 (2013.01); G01N 29/041 (2013.01); G01N 29/0654 (2013.01); G01N 29/265 (2013.01); G01N 29/4481 (2013.01); B29B 7/726 (2013.01); B29B 7/7404 (2013.01); B29B 7/94 (2013.01); B29K 2075/00 (2013.01); C08G 2110/0008 (2021.01); C08G 2110/0083 (2021.01); G01N 2021/845 (2013.01); G01N 2021/8908 (2013.01)

Citation (search report)

See references of WO 2022033837A1

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)

WO 2022033837 A1 20220217; EP 4196745 A1 20230621

DOCDB simple family (application)

EP 2021070647 W 20210723; EP 21746058 A 20210723