(19)
(11) EP 4 444 482 A1

(12)

(43) Date of publication:
16.10.2024 Bulletin 2024/42

(21) Application number: 22854475.5

(22) Date of filing: 02.12.2022
(51) International Patent Classification (IPC): 
B08B 17/02(2006.01)
C07B 63/04(2006.01)
C07C 67/00(2006.01)
C07C 253/32(2006.01)
B01F 21/00(2022.01)
C07C 57/00(2006.01)
C07C 67/62(2006.01)
(52) Cooperative Patent Classification (CPC):
C07B 63/04; C07C 57/00; C07C 67/00; C07C 67/62; B08B 17/025; B01F 21/02; C07C 253/32
(86) International application number:
PCT/US2022/051667
(87) International publication number:
WO 2023/107345 (15.06.2023 Gazette 2023/24)
(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:
KH MA MD TN

(30) Priority: 08.12.2021 CN 202111489084

(71) Applicant: ECOLAB USA INC.
St. Paul, MN 55102 (US)

(72) Inventor:
  • KONG, Meng
    Shanghai, SH 201206 (CN)

(74) Representative: HGF 
HGF Limited 1 City Walk
Leeds LS11 9DX
Leeds LS11 9DX (GB)

   


(54) METHOD AND COMPOSITION TO REMOVE POLYMER FOULANT