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(11)

EP 4 267 552 A1

(12)

(43) Date of publication: 01.11.2023 Bulletin 2023/44 (21) Application number: 21852073.2 (22) Date of filing: 23.12.2021

(51) International Patent Classification (IPC):  C07D 207/20(2006.01) C07C 235/60(2006.01) C08F 8/06(2006.01) C09K 21/06(2006.01) C07C 231/10(2006.01) C07F 7/18(2006.01) C08L 101/02(2006.01) (52) Cooperative Patent Classification (CPC): C07D 207/20; C07F 7/1804; C08F 8/06; C08L 101/025; C07C 231/10; C07C 235/60; C09K 21/10   C-Sets: C07C 231/10, C07C 235/60; (86) International application number: PCT/NO2021/050282 (87) International publication number: WO 2022/139594 (30.06.2022 Gazette 2022/26)

(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: 23.12.2020 NO 20201432 (71) Applicant: Klingelberg Products AS 1415 Oppegaard (NO)	(72) Inventors: MÄNNLE, Ferdinand 1415 Oppegård (NO) KØHLER, Jens 1405 Langhus (NO) (74) Representative: Curo AS  Vestre Rosten 81 7075 Tiller 7075 Tiller (NO)