(19)
(11) EP 4 771 089 A1

(12)

(43) Date of publication:
08.07.2026 Bulletin 2026/28

(21) Application number: 24769200.7

(22) Date of filing: 26.08.2024
(51) International Patent Classification (IPC): 
C08J 11/16(2006.01)
(52) Cooperative Patent Classification (CPC):
C08J 11/16; C08J 2323/00; Y02W 30/62
(86) International application number:
PCT/US2024/043833
(87) International publication number:
WO 2025/049375 (06.03.2025 Gazette 2025/10)
(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: 31.08.2023 US 202363535952 P

(71) Applicant: DOW GLOBAL TECHNOLOGIES LLC
Midland, MI 48674 (US)

(72) Inventors:
  • DAOURA, Oscar
    4542 NM Terneuzen (NL)
  • KONSTANTINOV, Ivan A.
    Lake Jackson, Texas 77566 (US)
  • EWART, Sean
    Lake Jackson, Texas 77566 (US)

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

   


(54) METHOD AND SYSTEM OF DEPOLYMERIZING A POLYOLEFIN