(19)
(11) EP 1 637 547 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:
07.10.2009 Bulletin 2009/41

(45) Mention of the grant of the patent:
29.07.2009 Bulletin 2009/31

(21) Application number: 04425690.7

(22) Date of filing: 16.09.2004
(51) International Patent Classification (IPC): 
C08F 16/06(2006.01)
C08J 3/24(2006.01)
A61L 27/52(2006.01)
 C08F 116/06(2006.01)
A61L 15/00(2006.01)
A61K 47/32(2006.01)

(54)

Process for the preparation of a polymeric hydrogel based on a highly purified polyvinylalcohol and uses thereof

Verfahren zur Herstellung eines polymeren Hydrogels auf Basis eines hochreinen Polyvinylalkohols und dessen Verwendung

Procédé de préparation d'un hydrogel d'alcool polyvinylique à haute pureté et son utilisation

(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 PL PT RO SE SI SK TR

(43) Date of publication of application:
22.03.2006 Bulletin 2006/12

(73) Proprietor: Polymekon S.r.l.
72100 Brindisi (BR) (IT)

(72) Inventors:
  • Protopapa, Carmelo
    72100 Brindisi (IT)
  • Balestrieri, Gerardo
    20100 Milano (IT)

(74) Representative: Bottero, Carlo 
Bugnion SpA Viale Lancetti 17
20158 Milano
20158 Milano (IT)


(56) References cited: : 
WO-A1-00/66191
US-A- 4 005 040
US-A- 5 106 876
 WO-A1-02/092678
US-A- 4 781 926
   
  • C.M.HASSAN, N.A.PEPPAS: "Structure and Morphology of Freeze/Thawed PVA Hydrogels" MACROMOLECULES, vol. 33, 2000, pages 2472-2479, XP002315693
   
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).