EP 0749455 A4 19980211 - PLASTICS FOAM AND METHOD OF MANUFACTURING SAME
Title (en)
PLASTICS FOAM AND METHOD OF MANUFACTURING SAME
Title (de)
KUNSTSTOFFSCHAUM UND VERFAHREN ZU DESSEN HERSTELLUNG
Title (fr)
MOUSSE EN MATIERE PLASTIQUE ET SON PROCEDE DE FABRICATION
Publication
Application
Priority
- AU 9500127 W 19950309
- AU 5777394 A 19940311
Abstract (en)
[origin: WO9524440A1] A method of producing an extruded plastics foam of enhanced physical strength which comprises: (a) intimately mixing a blowing agent incorporating CO2 and in which the major proportion is a natural gas, in a plastics resin melt to form an homogeneous resin mix; and (b) extruding the resin mix through an exit die into a region of lower pressure; wherein the temperature of the resin mix is adjusted so that it is below the critical temperature (as hereinbefore defined) at the point of extrusion out of the exit die.
IPC 1-7
C08J 9/12; C08J 9/14; C08J 9/30; C08F 12/08; C08F 112/08; B29C 47/86; B29C 44/50; B29C 67/20
IPC 8 full level
B29C 44/34 (2006.01); B29C 44/50 (2006.01); B29C 48/86 (2019.01); B29C 48/87 (2019.01); B29C 67/20 (2006.01); C08F 12/08 (2006.01); C08F 112/08 (2006.01); C08J 9/12 (2006.01); C08J 9/14 (2006.01); C08J 9/30 (2006.01); B29C 48/03 (2019.01); B29K 25/00 (2006.01); B29K 105/04 (2006.01)
CPC (source: EP)
B29C 44/348 (2013.01); B29C 48/832 (2019.01); B29C 48/834 (2019.01); B29C 48/86 (2019.01); B29C 48/87 (2019.01); C08J 9/122 (2013.01); C08J 9/127 (2013.01); B29C 48/03 (2019.01); C08J 2203/14 (2013.01); C08J 2203/142 (2013.01); C08J 2325/06 (2013.01)
Citation (search report)
- [X] EP 0411923 A2 19910206 - DOW CHEMICAL CO [US]
- [A] EP 0528536 A1 19930224 - MOBIL OIL CORP [US]
- [A] EP 0450513 A1 19911009 - DOW CHEMICAL CO [US]
- [A] WO 9314923 A1 19930805 - DU PONT [US]
- See references of WO 9524440A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9524440 A1 19950914; AU 1941395 A 19950925; BR 9507102 A 19970909; CA 2185221 A1 19950914; CO 4410417 A1 19970109; EP 0749455 A1 19961227; EP 0749455 A4 19980211; IN 188233 B 20020831; JP H09509975 A 19971007; MX 9603699 A 19971231; NZ 282337 A 19971124; PE 22495 A1 19950807
DOCDB simple family (application)
AU 9500127 W 19950309; AU 1941395 A 19950309; BR 9507102 A 19950309; CA 2185221 A 19950309; CO 95009620 A 19950310; EP 95912079 A 19950309; IN 287MA1995 A 19950310; JP 52312395 A 19950309; MX 9603699 A 19950309; NZ 28233795 A 19950309; PE 26393695 A 19950313