(19)
(11) EP 3 990 564 A1

(12)

(43) Date of publication:
04.05.2022 Bulletin 2022/18

(21) Application number: 20720450.4

(22) Date of filing: 24.04.2020
(51) International Patent Classification (IPC): 
C09K 5/10(2006.01)
(52) Cooperative Patent Classification (CPC):
C09K 5/10
(86) International application number:
PCT/EP2020/061411
(87) International publication number:
WO 2020/259894 (30.12.2020 Gazette 2020/53)
(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

(30) Priority: 26.06.2019 EP 19182488

(71) Applicant: Evonik Operations GmbH
45128 Essen (DE)

(72) Inventors:
  • WANG, Xinming
    Yamato-shi Kanagawa-ken, 242--0003 (JP)
  • AOKI, Tetsuji
    Kawagoe-Shi Saitama-ken, 350--1115 (JP)
  • SCHNEIDER, Rolf
    63584 Gründau-Rothenbergen (DE)
  • KERL, Thomas
    50933 Köln (DE)
  • DÄSCHLEIN, Christian
    44625 Herne (DE)

(74) Representative: Evonik Patent Association 
c/o Evonik Industries AG IP Management Bau 1042A/PB 15 Paul-Baumann-Straße 1
45772 Marl
45772 Marl (DE)

   


(54) USE OF IONIC LIQUIDS AS COOLANTS FOR VEHICLE ENGINES, MOTORS AND BATTERIES