EP 3723959 A1 20201021 - MULTI-DENSITY MOULDED EXPANDED POLYSTYRENE PANEL, PROCESS FOR THE MANUFACTURE THEREOF, AND APPARATUS THEREFOR
Title (en)
MULTI-DENSITY MOULDED EXPANDED POLYSTYRENE PANEL, PROCESS FOR THE MANUFACTURE THEREOF, AND APPARATUS THEREFOR
Title (de)
GEFORMTE EXPANDIERTE POLYSTYROLPLATTE MIT MEHREREN DICHTEN, VERFAHREN ZUR HERSTELLUNG DAVON UND VORRICHTUNG DAFÜR
Title (fr)
PANNEAU DE POLYSTYRÈNE EXPANSÉ MOULÉ MULTI-DENSITÉ, PROCÉDÉ DE FABRICATION ASSOCIÉ ET APPAREIL ASSOCIÉ
Publication
Application
Priority
IB 2017001169 W 20170822
Abstract (en)
[origin: WO2019038574A1] Multi-density moulded product panel (8), process for its manufacture, and manufacturing apparatus therefor, the product panel comprising at least two outer layers (10, 11) of expanded polystyrene beads, each of the at least two outer layers having a first density, and an inner core layer (9) of expanded polystyrene beads having a second density lower than the first density, sandwiched between the outer layers. The product panel is substantially oblong in shape and has an average density greater than, or equal to, about 10 kg/m. It also has a curved deformation measured against a normal running parallel to the height, perpendicular to the length, and centered at a midpoint in the thickness, of the multi-density continuously-molded product panel, of less than or equal to 10%, substantially over the entire length of said product.
IPC 8 full level
B29C 44/04 (2006.01); B29C 37/00 (2006.01); B29C 44/44 (2006.01); B29C 44/54 (2006.01); B29C 44/56 (2006.01); B32B 5/32 (2006.01); E04C 2/20 (2006.01); B29K 25/00 (2006.01); B29L 7/00 (2006.01); B29L 31/00 (2006.01)
CPC (source: EP)
B29C 44/0461 (2013.01); B29C 44/445 (2013.01); B29C 44/54 (2013.01); B29C 44/5627 (2013.01); B32B 3/06 (2013.01); B32B 3/263 (2013.01); B32B 3/30 (2013.01); B32B 5/18 (2013.01); B32B 5/32 (2013.01); B32B 7/02 (2013.01); E04C 2/205 (2013.01); B29C 37/0082 (2013.01); B29C 44/3426 (2013.01); B29K 2025/06 (2013.01); B29K 2995/0064 (2013.01); B29L 2007/002 (2013.01); B29L 2031/776 (2013.01); B32B 2250/03 (2013.01); B32B 2250/22 (2013.01); B32B 2250/40 (2013.01); B32B 2266/0228 (2013.01); B32B 2307/72 (2013.01); B32B 2419/00 (2013.01); B32B 2607/00 (2013.01); E04C 2002/004 (2013.01)
Citation (search report)
See references of WO 2019038574A1
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
DOCDB simple family (publication)
DOCDB simple family (application)
IB 2017001169 W 20170822; EP 17783988 A 20170822