(19)
(11) EP 4 408 563 A1

(12)

(43) Date of publication:
07.08.2024 Bulletin 2024/32

(21) Application number: 21798547.2

(22) Date of filing: 29.09.2021
(51) International Patent Classification (IPC): 
B01D 19/04(2006.01)
 C07C 43/00(2006.01)
(52) Cooperative Patent Classification (CPC):
B01D 19/0404
(86) International application number:
PCT/CN2021/121610
(87) International publication number:
WO 2023/050125 (06.04.2023 Gazette 2023/14)
(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 MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

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

(72) Inventors:
  • QI, Wenjing
    Shanghai 201203 (CN)
  • ZHONG, Zeyu
    Shanghai 201203 (CN)
  • CHEN, Xue
    Lake Jackson, Texas 77566 (US)

(74) Representative: Beck Greener LLP 
Fulwood House 12 Fulwood Place
London WC1V 6HR
London WC1V 6HR (GB)

   


(54) POLYALKYLENE ALKYL COMPOUND FOR DEFOAMING FERMENTATION BROTH