(19)
(11) EP 4 816 420 A1

(12)

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

(21) Application number: 24827375.7

(22) Date of filing: 22.11.2024
(51) International Patent Classification (IPC): 
C08F 110/02(2006.01)
C08F 4/80(2006.01)
 C08F 220/18(2006.01)
C08F 210/02(2006.01)
(52) Cooperative Patent Classification (CPC):
C08F 110/02; C08F 210/02
 
C-Sets:
  1. C08F 110/02, C08F 2500/34, C08F 2500/02, C08F 2500/04;
  2. C08F 10/02, C08F 4/7031;
  3. C08F 10/02, C08F 4/80;
  4. C08F 210/02, C08F 220/1804, C08F 2500/03, C08F 2500/34, C08F 2500/27;
  5. C08F 210/02, C08F 220/1804, C08F 2500/03, C08F 2500/34, C08F 2500/27, C08F 2500/02;
  6. C08F 210/16, C08F 210/14, C08F 2500/34, C08F 2500/27, C08F 2500/02;
(86) International application number:
PCT/US2024/057097
(87) International publication number:
WO 2025/117375 (05.06.2025 Gazette 2025/23)
(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: 30.11.2023 US 202363604608 P

(71) Applicant: Dow Global Technologies LLC
Midland, MI 48674 (US)

(72) Inventors:
  • NETT, Alex J.
    Midland, Michigan 48640 (US)
  • SPINNEY, Heather A.
    Midland, Michigan 48640 (US)
  • SENECAL, Todd D.
    Midland, Michigan 48640 (US)
  • GARZA GONZALEZ, Alejandro J.
    Midland, Michigan 48640 (US)
  • MAITY, Asim
    Midland, Michigan 48640 (US)

(74) Representative: Boult Wade Tennant LLP 
Salisbury Square House 8 Salisbury Square
London EC4Y 8AP
London EC4Y 8AP (GB)

   


(54) ELECTRON-DEFICIENT PYRIDINIUM-PHOSPHINE-PHENOL SUPPORTED NICKEL(II) OR PALLADIUM (II) CATALYSTS FOR THE COPOLYMERIZATION OF ETHYLENE AND ACRYLATE COMONOMERS