EP 2164894 A1 20100324 - BLOWING AGENT IMPREGNATION ENHANCEMENT IN BEAD FOAM
Title (en)
BLOWING AGENT IMPREGNATION ENHANCEMENT IN BEAD FOAM
Title (de)
VERBESSERUNG DER TREIBMITTELTRÄNKUNG IN PARTIKELSCHAUM
Title (fr)
AMÉLIORATION DE L'IMPRÉGNATION PAR UN AGENT D'EXPANSION DANS UNE MOUSSE À BILLES
Publication
Application
Priority
- US 2008066814 W 20080613
- US 95837407 P 20070705
Abstract (en)
[origin: WO2009009252A1] Impregnate polymeric beads containing 100 parts of an alkenyl aromatic polymer, 0.1 to 8 parts of a blowing agent impregnation enhancer selected from a group consisting of saturate aliphatic hydrocarbons having 20 to 60 carbon atoms and ester products of a saturated mono-carboxylic acid having 14 to 20 carbon atoms with an alkyl alcohol having 3 to 5 carbon atoms with 2 to 9 parts of a blowing agent by softening the polymer beads containing the impregnation enhancer to within 40°C of the beads softening temperature and impregnating the beads with blowing agent to prepare an expandable polymer bead. Expand the expandable polymer bead to prepare an expanded polymer bead foam.
IPC 8 full level
CPC (source: EP)
C08J 9/0023 (2013.01); C08J 9/0066 (2013.01); C08J 9/18 (2013.01); C08J 2203/14 (2013.01); C08J 2325/04 (2013.01)
Citation (search report)
See references of WO 2009009252A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
US 2008066814 W 20080613; EP 08770925 A 20080613