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EP 4 281 514 A1

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(43) Date of publication: 29.11.2023 Bulletin 2023/48 (21) Application number: 22703971.6 (22) Date of filing: 10.01.2022

(51) International Patent Classification (IPC):  C09K 17/04(2006.01) C09K 17/06(2006.01) C05D 9/02(2006.01) (52) Cooperative Patent Classification (CPC): C09K 17/04; C09K 17/06; C05B 15/00   C-Sets: C05B 15/00, C05D 3/00, C05D 5/00, C05D 9/02; (86) International application number: PCT/IB2022/050134 (87) International publication number: WO 2022/157593 (28.07.2022 Gazette 2022/30)

(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: 20.01.2021 IN 202131002666 (71) Applicants: Tata Steel Limited Jamshedpur, Jharkhand 831001 (IN) University of Agricultural Sciences Karnataka Bangalore 560065 (IN)

(72) Inventors: NAGABOVANALLI, Prakash Karnataka Bangalore 560065 (IN) DHUMGOND, Prabhudev Karnataka Bangalore 560065 (IN) VENKATESH, Shruthi Karnataka Bangalore 560065 (IN) THIMMARAYAPPA, Chikkaramappa Karnataka Bangalore 560065 (IN) ASHRIT, Shrenivas Sheturamacharya Jamshedpur 831001 (IN) SARKAR, Supriya Jamshedpur 831001 (IN) SUDAN, Munish Jamshedpur 831001 (IN) (74) Representative: Kador & Partner Part mbB  Corneliusstraße 15 80469 München 80469 München (DE)