(19)
(11) EP 0 970 983 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
03.05.2006 Bulletin 2006/18

(45) Mention of the grant of the patent:
08.02.2006 Bulletin 2006/06

(21) Application number: 99305401.4

(22) Date of filing: 07.07.1999
(51) International Patent Classification (IPC): 
C08G 63/82(2006.01)

(54)

Preparation of polyesters using lithium titanyl oxalate polycondensation catalysts

Darstellung von Polyestern unter Verwendung von Lithiumtitanyloxalat-Polykondensationskatalysatoren

Préparation de polyester utilisant des lithiumtitanyloxalates comme catalyseurs de polycondensation

(84) Designated Contracting States:
BE CH DE ES FR GB GR IT LI NL PT

(30) Priority: 07.07.1998 US 92032 P

(43) Date of publication of application:
12.01.2000 Bulletin 2000/02

(73) Proprietor: Arkema Inc.
Philadelphia, PA 19103-3222 (US)

(72) Inventors:
  • Cannon, Kevin C.
    Hatboro, Pennsylvania 19040 (US)
  • Seshadri, Sri R.
    Holland, Pennsylvania 18966 (US)
  • Dirkx, Ryan R.
    Glenmoore, Pennsylvania 19343 (US)

(74) Representative: Stoner, Gerard Patrick et al
Mewburn Ellis LLP York House 23 Kingsway
London WC2B 6HP
London WC2B 6HP (GB)


(56) References cited: : 
DE-A- 2 635 662
   
  • DATABASE WPI Section Ch, Week 196800 Derwent Publications Ltd., London, GB; Class A00, AN 1968-88934P XP002138343 & JP 42 013030 B (TOYM; TOYO BOSEKI KK)
  • DATABASE WPI Section Ch, Week 197426 Derwent Publications Ltd., London, GB; Class A23, AN 1974-47978V XP002137729 & JP 49 021310 B (TOYO SPINNING CO LTD), 31 May 1974 (1974-05-31)
  • DATABASE WPI Section Ch, Week 198745 Derwent Publications Ltd., London, GB; Class A23, AN 1987-317620 XP002137730 & JP 62 225524 A (TORAY IND INC), 3 October 1987 (1987-10-03)
 
Remarks:
The file contains technical information submitted after the application was filed and not included in this specification
 
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).