(19)
(11) EP 4 103 627 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:
06.11.2024 Bulletin 2024/45

(45) Mention of the grant of the patent:
03.04.2024 Bulletin 2024/14

(21) Application number: 20842038.0

(22) Date of filing: 21.12.2020
(51) International Patent Classification (IPC): 
C08F 114/26(2006.01)
C08J 3/28(2006.01)
 C08F 8/50(2006.01)
(52) Cooperative Patent Classification (CPC):
C08F 114/26; C08F 8/50; C08J 3/28; C08J 2327/18
 
C-Sets:
C08F 8/50, C08F 114/26;
(86) International application number:
PCT/IB2020/062305
(87) International publication number:
WO 2021/124311 (24.06.2021 Gazette 2021/25)

(54)

METHOD FOR PRODUCING LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE (PTFE) AND LOW MOLECULAR WEIGHT PTFE

VERFAHREN ZUR HERSTELLUNG NIEDERMOLEKULAREN POLYTETRAFLUOROETHYLENS (PTFE) UND NIEDERMOLEKULARES PTFE

PROCÉDÉ DE PRÉPARATION D'UN POLYTÉTRAFLUOROÉTHYLÈNE (PTFE) À BAS POIDS MOLÉCULAIRE ET PTFE À BAS POIDS MOLÉCULAIRE

(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 19.12.2019 IT 201900024871

(43) Date of publication of application:
21.12.2022 Bulletin 2022/51

(60) Divisional application:
24167317.7 / 4389805

(73) Proprietor: GUARNIFLON S.P.A.
20135 Milano (IT)

(72) Inventors:
  • MARCORA, Giovanni
    24060 Castelli Calepio (BG) (IT)
  • FARIMBELLA, Alberto
    24060 Castelli Calepio (BG) (IT)
  • ZARANTONELLO, Camillo
    24060 Castelli Calepio (BG) (IT)

(74) Representative: M. Zardi & Co S.A. 
Via G. B. Pioda, 6
6900 Lugano
6900 Lugano (CH)


(56) References cited: : 
EP-A1- 3 388 472
WO-A1-2019/156065
 WO-A1-2019/156053
   
     
    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).