(19)
(11) EP 1 114 073 A1

(12)

(43) Date of publication:
11.07.2001 Bulletin 2001/28

(21) Application number: 99941342.0

(22) Date of filing: 03.09.1999
(51) International Patent Classification (IPC)7: C08F 136/06
(86) International application number:
PCT/CA9900/804
(87) International publication number:
WO 0014/130 (16.03.2000 Gazette 2000/11)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 04.09.1998 CA 2246608

(71) Applicant: Bayer Inc.
Sarnia, ON N7T 7M2 (CA)

(72) Inventors:
  • OSMAN, Akhtar
    Sarnia,Ontario N7V 2B8 (CA)
  • BARSAN, Florin
    Sarnia, Ontario N7T 7S9 (CA)

(74) Representative: Schneider, Jürgen, Dr. 
Bayer AGKonzernbereich RP,Patente und Lizenzen
51368 Leverkusen
51368 Leverkusen (DE)

   


(54) GEL REDUCTION IN HIGH CIS-1,4-POLYBUTADIENE PRODUCTION PROCESS