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(11)

EP 3 775 141 A1

(12)

(43) Date of publication: 17.02.2021 Bulletin 2021/07 (21) Application number: 19709509.4 (22) Date of filing: 13.03.2019

(51) International Patent Classification (IPC):  C11D 11/00(2006.01) C11D 3/30(2006.01) C11D 3/48(2006.01) C11D 3/20(2006.01) C11D 3/00(2006.01) C11D 1/62(2006.01) C11D 7/32(2006.01) (86) International application number: PCT/EP2019/056272 (87) International publication number: WO 2019/185352 (03.10.2019 Gazette 2019/40)

(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: 29.03.2018 EP 18165103 29.03.2018 EP 18165099 (71) Applicants: Unilever PLC London Greater London EC4Y 0DY (GB) CY GB IE MT  Unilever N.V. 3013 AL Rotterdam (NL) AL AT BE BG CH CZ DE DK EE ES FI FR GR HR HU IS IT LI LT LU LV MC MK NL NO PL PT RO RS SE SI SK SM TR

(72) Inventors: GRAHAM, Peter Wirral Merseyside CH63 3JW (GB) MYERS, Margaret, Jean, Scott Wirral Merseyside CH63 3JW (GB) SHAW, Emma, Michelle Wirral Merseyside CH63 3JW (GB) (74) Representative: Moore, Elizabeth Ellen et al Unilever Patent Group Bronland 14 6708 WH Wageningen 6708 WH Wageningen (NL)