Global Patent Index - EP 1951496 A1

EP 1951496 A1 20080806 - PROCESS FOR EXTRUDING A THIN FILM FROM AN AROMATIC POLYAMIDE-IMIDE COMPOSITION

Title (en)

PROCESS FOR EXTRUDING A THIN FILM FROM AN AROMATIC POLYAMIDE-IMIDE COMPOSITION

Title (de)

VERFAHREN ZUM EXTRUDIEREN EINES DÜNNEN FILMS AUS EINER AROMATISCHEN POLYAMIDIMIDZUSAMMENSETZUNG

Title (fr)

PROCÉDÉ SERVANT À EXTRUDER UNE FEUILLE MINCE À PARTIR D'UN POLYAMIDE-IMIDE AROMATIQUE

Publication

EP 1951496 A1 20080806 (EN)

Application

EP 06819376 A 20061109

Priority

  • EP 2006068304 W 20061109
  • US 73475205 P 20051109

Abstract (en)

[origin: WO2007054543A1] Process for extruding a film (F) having a thickness of below 1000 µm from a polymer composition (C), wherein the polymer composition (C) comprises at least 40 wt. %, based on the total weight of the polymer composition (C), of at least one aromatic polyamide-imide manufactured by a process including the polycondensation reaction of : (i) trimellitic anhydride monoacid halide; (ii) at least one comonomer chosen from diamines and diisocyanates, and (iii) at least one substance (S) comprising on e and only one functional group capable of reacting with either an anhydride group and an acid halide group on one hand, or an amine group and an isocyanate group on the other hand, or one and only one precursor of said functional group, wherein the amount of substance (S) is of above 1 mol. %, based on the total number of moles of trimellitic anhydride monoac id halide and substance (S).

IPC 8 full level

B29C 48/08 (2019.01); B29C 48/305 (2019.01); C08G 73/14 (2006.01); C08J 5/18 (2006.01)

CPC (source: EP)

B29C 48/022 (2019.01); B29C 48/08 (2019.01); C08G 73/14 (2013.01); C08J 5/18 (2013.01); C08L 79/08 (2013.01); B29K 2079/085 (2013.01); B29K 2105/256 (2013.01); C08J 2379/08 (2013.01)

Citation (search report)

See references of WO 2007054543A1

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 2007054543 A1 20070518; EP 1951496 A1 20080806; JP 2009515020 A 20090409

DOCDB simple family (application)

EP 2006068304 W 20061109; EP 06819376 A 20061109; JP 2008539437 A 20061109