EP 2638102 A1 20130918 - PROCESS FOR PRODUCING EXPANDABLE THERMOPLASTIC BEADS WITH IMPROVED EXPANDABILITY
Title (en)
PROCESS FOR PRODUCING EXPANDABLE THERMOPLASTIC BEADS WITH IMPROVED EXPANDABILITY
Title (de)
VERFAHREN ZUR HERSTELLUNG VON EXPANDIERBAREN THERMOPLASTISCHEN PARTIKELN MIT VERBESSERTER EXPANDIERBARKEIT
Title (fr)
PROCÉDÉ POUR PRODUIRE DES PARTICULES THERMOPLASTIQUES EXPANSÉES PRÉSENTANT UNE MEILLEURE APTITUDE À L'EXPANSION
Publication
Application
Priority
- EP 10190893 A 20101111
- EP 2011069489 W 20111107
- EP 11778907 A 20111107
Abstract (en)
[origin: EP2452968A1] Preparing cavities containing expandable thermoplastic polymer particles, comprises (i) extruding a propellant containing polymer melt comprising (in wt.%, based on the propellant containing polymer melt) nucleating agent (0.1-5), propellant (1-10) remaining in the polymer particles, and co-propellant (0.01-5 wt.%) forming cavities, through a die plate, and (ii) granulating it in a liquid filled chamber at a pressure of 1.5-15 bars. An independent claim is also included for cavities containing expandable thermoplastic polymer particles with an average diameter of 0.1-50 mm, obtainable by the above method.
IPC 8 full level
C08J 9/18 (2006.01); B29C 44/34 (2006.01); C08J 9/00 (2006.01); C08J 9/12 (2006.01); C08L 25/04 (2006.01)
CPC (source: EP KR)
B29C 44/50 (2013.01 - KR); C08J 9/0004 (2013.01 - KR); C08J 9/0061 (2013.01 - EP); C08J 9/0066 (2013.01 - EP); C08J 9/122 (2013.01 - EP); C08J 9/127 (2013.01 - EP); C08J 9/141 (2013.01 - EP); C08J 9/16 (2013.01 - EP); C08J 9/18 (2013.01 - KR); C08J 9/232 (2013.01 - EP); C08L 23/02 (2013.01 - KR); C08L 25/04 (2013.01 - KR); C08L 25/08 (2013.01 - KR); C08L 25/10 (2013.01 - KR); C08J 2201/03 (2013.01 - EP); C08J 2203/06 (2013.01 - EP); C08J 2203/14 (2013.01 - EP); C08J 2203/202 (2013.01 - EP); C08J 2205/044 (2013.01 - EP); C08J 2325/04 (2013.01 - KR); C08J 2325/06 (2013.01 - EP); C08J 2423/02 (2013.01 - KR); C08J 2423/08 (2013.01 - EP); C08J 2425/08 (2013.01 - KR); C08J 2425/10 (2013.01 - KR); C08J 2453/02 (2013.01 - EP)
Citation (search report)
See references of WO 2012062682A1
Citation (examination)
- WO 2009000872 A1 20081231 - BASF SE [DE], et al
- WO 2011086030 A2 20110721 - BASF SE [DE], et al
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
DOCDB simple family (publication)
EP 2452968 A1 20120516; BR 112013011444 A2 20160809; CA 2817678 A1 20120518; CN 103347942 A 20131009; CN 103347942 B 20141203; EP 2638102 A1 20130918; JP 2013542302 A 20131121; JP 5873098 B2 20160301; KR 101869577 B1 20180620; KR 20130103571 A 20130923; MX 2013005234 A 20130628; TW 201226457 A 20120701; WO 2012062682 A1 20120518
DOCDB simple family (application)
EP 10190893 A 20101111; BR 112013011444 A 20111107; CA 2817678 A 20111107; CN 201180053832 A 20111107; EP 11778907 A 20111107; EP 2011069489 W 20111107; JP 2013538139 A 20111107; KR 20137014813 A 20111107; MX 2013005234 A 20111107; TW 100141106 A 20111110