(19)
(11) EP 4 255 863 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:
16.04.2025 Bulletin 2025/16

(45) Mention of the grant of the patent:
12.02.2025 Bulletin 2025/07

(21) Application number: 21819489.2

(22) Date of filing: 02.12.2021
(51) International Patent Classification (IPC): 
C04B 7/52(2006.01)
 C04B 28/04(2006.01)
(52) Cooperative Patent Classification (CPC):
C04B 7/52; C04B 28/04; C04B 2103/52
 
C-Sets:
  1. C04B 28/04, C04B 14/106, C04B 14/108, C04B 14/28, C04B 18/08, C04B 18/141, C04B 18/146, C04B 22/143, C04B 24/06, C04B 2103/0088;
  2. C04B 28/04, C04B 14/106, C04B 14/108, C04B 14/28, C04B 18/08, C04B 18/141, C04B 18/146, C04B 22/143, C04B 2103/0088, C04B 2103/52;
  3. C04B 2103/52, C04B 24/02, C04B 24/04, C04B 24/06;
(86) International application number:
PCT/EP2021/083907
(87) International publication number:
WO 2022/117703 (09.06.2022 Gazette 2022/23)

(54)

PORTLAND CEMENT WITH INCREASED SHELF-LIFE

PORTLANDZEMENT MIT ERHÖHTER LAGERSTABILITÄT

CIMENT PORTLAND À DURÉE DE CONSERVATION PROLONGÉE

(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
Designated Validation States:
MA

(30) Priority: 03.12.2020 EP 20306488

(43) Date of publication of application:
11.10.2023 Bulletin 2023/41

(73) Proprietor: Holcim Technology Ltd
6300 Zug (CH)

(72) Inventors:
  • DION, Pascal
    38070 Saint Quentin Fallavier (FR)
  • MARTIN, Mylène
    38070 Saint Quentin Fallavier (FR)

(74) Representative: Regimbeau 
20, rue de Chazelles
75847 Paris Cedex 17
75847 Paris Cedex 17 (FR)


(56) References cited: : 
US-A- 1 947 504
   
       
    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).