(19)
(11) EP 4 816 139 A1

(12)

(43) Date of publication:
07.10.2026 Bulletin 2026/41

(21) Application number: 25708730.4

(22) Date of filing: 25.02.2025
(51) International Patent Classification (IPC): 
B28B 1/50(2006.01)
B28B 17/02(2006.01)
B28C 7/04(2006.01)
C04B 38/10(2006.01)
 B28B 17/00(2006.01)
B28C 5/38(2006.01)
C04B 28/14(2006.01)
(52) Cooperative Patent Classification (CPC):
B28C 7/0418; B28B 17/0072; B28B 17/0081; B28B 1/50; B28B 17/023; B28C 5/38; C04B 28/14; C04B 38/106; C04B 2111/0062
 
C-Sets:
  1. C04B 28/14, C04B 38/106, C04B 40/0028, C04B 40/0032, C04B 2103/40, C04B 2103/48;
  2. C04B 38/106, C04B 28/14;
  3. C04B 28/14, C04B 38/106, C04B 2103/48;
(86) International application number:
PCT/EP2025/054978
(87) International publication number:
WO 2025/195724 (25.09.2025 Gazette 2025/39)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 22.03.2024 CN 202410339414

(71) Applicant: Saint-Gobain Placo
92400 Courbevoie (FR)

(72) Inventors:
  • JIN, Lijun
    Shanghai 201201 (CN)
  • DENG, Tao
    Yangzhou, Jiangsu 225001 (CN)
  • FAN, Ronghua
    Shanghai 201201 (CN)
  • PAN, Xiaoqing
    Shanghai 201201 (CN)

(74) Representative: Murgitroyd & Company 
165-169 Scotland Street
Glasgow G5 8PL
Glasgow G5 8PL (GB)

   


(54) A PROCESS FOR ADJUSTING PRODUCTION OF A GYPSUM BOARD