(19)
(11) EP 1 618 138 A2

(12)

(88) Date of publication A3:
03.03.2005

(43) Date of publication:
25.01.2006 Bulletin 2006/04

(21) Application number: 03781752.5

(22) Date of filing: 31.10.2003
(51) International Patent Classification (IPC): 
C08G 63/185(1990.01)
C07D 323/00(1985.01)
(86) International application number:
PCT/US2003/035176
(87) International publication number:
WO 2004/099174 (18.11.2004 Gazette 2004/47)
(84) Designated Contracting States:
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
Designated Extension States:
AL LT LV MK

(30) Priority: 30.04.2003 US 426600

(71) Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
Wilmington, DE 19898 (US)

(72) Inventors:
  • Brugel, Edward G.
    Wilmington, DE 19810 (US)
  • Di Cosimo, Robert
    Rockland, DE 19732 (US)

(74) Representative: Morf, Jan Stefan 
Abitz & Partner, Poschingerstrasse 6
81679 München (Bogenhausen)
81679 München (Bogenhausen) (DE)

   


(54) CONTINUOUS BIOREACTOR PROCESS FOR THE PREPARATION OF POLYESTER CYCLIC OLIGOMERS