(19)

(11)

EP 3 976 578 A1

(12)

(43) Date of publication: 06.04.2022 Bulletin 2022/14 (21) Application number: 20742881.4 (22) Date of filing: 23.05.2020

(51) International Patent Classification (IPC):  C07C 249/12(2006.01) A01N 47/42(2006.01) C07C 251/46(2006.01) (52) Cooperative Patent Classification (CPC): C07C 249/12; A01N 47/42; C07C 249/02   C-Sets: C07C 249/12; C07C 249/02; (86) International application number: PCT/IB2020/054913 (87) International publication number: WO 2020/240391 (03.12.2020 Gazette 2020/49)

(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: 24.05.2019 IN 201911020663 (71) Applicant: PI Industries Ltd. Udaipur, Rajasthan 313001 (IN)	(72) Inventors: MITTAL, Anuj Kumar Udaipur- Rajasthan 313001 (IN) SHARMA, Maneesh Kumar Udaipur- Rajasthan 313001 (IN) JAIN, Abhishek Udaipur - Rajasthan 313001 (IN) GURJAR, Mitthu Lal Udaipur - Rajasthan 313601 (IN) SRIVASTAVA, Sumit Jaipur - Rajasthan (IN) (74) Representative: Keltie LLP  No. 1 London Bridge London SE1 9BA London SE1 9BA (GB)