EP 1869112 A1 20071226 - METHOD FOR PRODUCING POLYSTYRENE FOAM PARTICLES WITH A HIGH DENSITY
Title (en)
METHOD FOR PRODUCING POLYSTYRENE FOAM PARTICLES WITH A HIGH DENSITY
Title (de)
VERFAHREN ZUR HERSTELLUNG VON POLYSTYROLSCHAUMPARTIKELN HOHER DICHTE
Title (fr)
PROCEDE DE PRODUCTION DE PARTICULES DE MOUSSE DE POLYSTYRENE DE HAUTE DENSITE
Publication
Application
Priority
- EP 2006061349 W 20060405
- DE 102005015891 A 20050406
Abstract (en)
[origin: WO2006106120A1] The invention relates to a method for producing polystyrene foam particles with a bulk density ranging between 40 and 400 g/l by the extrusion of a polystyrene melt, containing carbon dioxide and/or water as the expansion agent, through a nozzle and by underwater granulation. According to the invention, the underwater granulation is carried out at a pressure ranging between 1 and 30 bar.
IPC 8 full level
B29B 9/06 (2006.01); C08J 3/12 (2006.01); C08J 9/00 (2006.01); C08J 9/12 (2006.01); C08J 9/16 (2006.01)
CPC (source: EP KR US)
B29B 9/065 (2013.01 - EP US); B29C 44/105 (2013.01 - EP KR US); B29C 44/3461 (2013.01 - EP KR US); C08J 9/0066 (2013.01 - EP KR US); C08J 9/122 (2013.01 - EP KR US); C08J 9/125 (2013.01 - EP KR US); C08J 9/16 (2013.01 - EP KR US); C08L 25/06 (2013.01 - KR); C08J 2201/03 (2013.01 - EP KR US); C08J 2325/06 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2006106120A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006106120 A1 20061012; BR PI0610528 A2 20121030; DE 102005015891 A1 20061012; EP 1869112 A1 20071226; KR 20080005255 A 20080110; MX 2007012266 A 20071012; MY 148843 A 20130614; US 2009065960 A1 20090312; US 8168096 B2 20120501
DOCDB simple family (application)
EP 2006061349 W 20060405; BR PI0610528 A 20060405; DE 102005015891 A 20050406; EP 06725579 A 20060405; KR 20077025473 A 20071102; MX 2007012266 A 20060405; MY PI20061312 A 20060324; US 91053306 A 20060405