EP 1537171 A1 20050608 - METHOD FOR THE PRODUCTION OF LOW-BULK DENSITY POLYSTYRENE FOAM PARTICLES
Title (en)
METHOD FOR THE PRODUCTION OF LOW-BULK DENSITY POLYSTYRENE FOAM PARTICLES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON POLYSTYROLSCHAUMPARTIKELN MIT NIEDRIGER SCHÜTTDICHTE
Title (fr)
PROCEDE POUR PRODUIRE DES PARTICULES DE MOUSSE DE POLYSTYRENE A FAIBLE DENSITE APPARENTE
Publication
Application
Priority
- DE 10241298 A 20020904
- EP 0309521 W 20030828
Abstract (en)
[origin: WO2004022636A1] The invention relates to a method for the production of low-bulk density foam particles made of thermoplastic polymers, comprising the following steps: a) a foaming agent is added to a thermoplastic polymer melt, b) the polymer melt containing the foaming agent is cooled and extruded by means of a nozzle, c) the polymer melt containing the foaming agent is cut at the rear of the nozzle at reduced pressure and the foam particles are foamed, said foaming agent containing water and a solubility mediator, in addition to foam particles which can be obtained according to said method.
IPC 1-7
IPC 8 full level
C08J 9/00 (2006.01); C08J 9/12 (2006.01); C08J 9/16 (2006.01)
CPC (source: EP KR US)
C08J 9/0066 (2013.01 - EP KR US); C08J 9/127 (2013.01 - EP KR US); C08J 9/16 (2013.01 - EP KR US); C08L 23/02 (2013.01 - KR); C08L 25/06 (2013.01 - KR); C08J 2201/03 (2013.01 - EP KR US); C08J 2203/06 (2013.01 - EP KR US); C08J 2203/12 (2013.01 - EP KR US); C08J 2203/14 (2013.01 - EP US); C08J 2203/142 (2013.01 - EP KR US); C08J 2323/02 (2013.01 - EP KR US); C08J 2325/06 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2004022636A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004022636 A1 20040318; AU 2003264117 A1 20040329; BR 0313928 A 20050712; CN 1329434 C 20070801; CN 1678670 A 20051005; DE 10241298 A1 20040318; EP 1537171 A1 20050608; KR 101024762 B1 20110324; KR 20050057128 A 20050616; MX PA05002147 A 20050523; PL 206019 B1 20100630; PL 375394 A1 20051128; US 2006167123 A1 20060727
DOCDB simple family (application)
EP 0309521 W 20030828; AU 2003264117 A 20030828; BR 0313928 A 20030828; CN 03821004 A 20030828; DE 10241298 A 20020904; EP 03793763 A 20030828; KR 20057003670 A 20030828; MX PA05002147 A 20030828; PL 37539403 A 20030828; US 52576705 A 20050228