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EP 3 704 275 A1

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(43) Date of publication: 09.09.2020 Bulletin 2020/37 (21) Application number: 18734308.2 (22) Date of filing: 30.05.2018

(51) International Patent Classification (IPC):  C14C 3/06(2006.01) C14C 3/10(2006.01) C14C 9/02(2006.01) B01F 17/00(2006.01) C11D 1/72(2006.01) C14C 3/28(2006.01) C11D 3/20(2006.01) (86) International application number: PCT/IN2018/050347 (87) International publication number: WO 2019/102487 (31.05.2019 Gazette 2019/22)

(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: 24.11.2017 IN 201711042200 (71) Applicant: Council of Scientific and Industrial Research New Delhi 110001 (IN)	(72) Inventors: THANIKAIVELAN, Palanisamy Tamil Nadu 600020 (IN) ARAVINDHAN, Rathinam Tamil Nadu 600020 (IN) MADHAN, Balaraman Tamil Nadu 600020 (IN) SARAVANAN, Palanivel Tamil Nadu 600020 (IN) RAO, Jonnalagadda Raghava Tamil Nadu 600020 (IN) (74) Representative: Jilderda, Anne Ayolt  LIOC Patents & Trademarks Zwaanstraat 31 L 5651 CA Eindhoven 5651 CA Eindhoven (NL)