(19)
(11) EP 4 739 665 A1

(12)

(43) Date of publication:
13.05.2026 Bulletin 2026/20

(21) Application number: 24739510.6

(22) Date of filing: 03.07.2024
(51) International Patent Classification (IPC): 
C07D 309/10(2006.01)
 B01D 61/42(2006.01)
(52) Cooperative Patent Classification (CPC):
C07D 309/10; B01D 61/422; B01D 61/445
(86) International application number:
PCT/EP2024/068727
(87) International publication number:
WO 2025/008399 (09.01.2025 Gazette 2025/02)
(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: 04.07.2023 FR 2307134

(71) Applicant: L'OREAL
75008 Paris (FR)

(72) Inventors:
  • WAFFLART, Florence
    95500 LE THILLAY (FR)
  • KOSTELITZ, Olivier
    95500 LE THILLAY (FR)
  • PARLY, Florence
    95500 LE THILLAY (FR)

(74) Representative: Casalonga 
Casalonga & Partners Bayerstraße 71/73
80335 München
80335 München (DE)

   


(54) PURIFICATION PROCESS COMPRISING ONE OR MORE COSMETIC INGREDIENTS WITH AT LEAST ONE ELECTRODIALYSIS