(19)
(11) EP 4 204 462 A1

(12)

(43) Date of publication:
05.07.2023 Bulletin 2023/27

(21) Application number: 21766434.1

(22) Date of filing: 19.08.2021
(51) International Patent Classification (IPC): 
C08F 2/48(2006.01)
C09D 4/00(2006.01)
 C08K 3/013(2018.01)
(52) Cooperative Patent Classification (CPC):
C09D 4/00; C08F 2/48; C08K 3/013
 
C-Sets:
C09D 4/00, C08F 222/1065;
(86) International application number:
PCT/EP2021/073036
(87) International publication number:
WO 2022/043180 (03.03.2022 Gazette 2022/09)
(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: 28.08.2020 EP 20193391

(71) Applicants:
  • BASF SE
    67056 Ludwigshafen am Rhein (DE)
  • IST METZ GmbH
    72622 Nürtingen (DE)

(72) Inventors:
  • BECKER, Axel
    67056 Ludwigshafen (DE)
  • STARZMANN, Oliver
    72622 Nuertingen (DE)
  • STENGLE, Michael
    72622 Nuertingen (DE)
  • FEIL, Frederik
    72622 Nuertingen (DE)

(74) Representative: Schuck, Alexander 
Patentanwälte Isenbruck Bösl Hörschler PartG mbB Eastsite One Seckenheimer Landstraße 4
68163 Mannheim
68163 Mannheim (DE)

   


(54) METHOD FOR UV CURING OF WATER-BASED POLYURETHANE PAINT DISPERSIONS WITHOUT UV-C-ACTIVATABLE SURFACE INITIATORS