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(11)

EP 4 077 409 A1

(12)

(43) Date of publication: 26.10.2022 Bulletin 2022/43 (21) Application number: 19956445.1 (22) Date of filing: 20.12.2019

(51) International Patent Classification (IPC):  C08F 2/44(2006.01) C08F 36/06(2006.01) C08F 293/00(2006.01) C08L 9/00(2006.01) (52) Cooperative Patent Classification (CPC): B60C 1/00; B60C 1/0016; C08F 36/06; C08C 19/25; Y02T 10/86   C-Sets: C08F 36/06, C08F 4/545; (86) International application number: PCT/RU2019/000984 (87) International publication number: WO 2021/126001 (24.06.2021 Gazette 2021/25)

(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 (71) Applicant: Public Joint Stock Company "Sibur Holding" (PJSC "Sibur Holding") Tobolsk, 626150 (RU)	(72) Inventors: BOIKO, Liliia Andreevna Voronezh, 394042 (RU) IARTSEVA, Tatiana Aleksandrovna Voronezh, 394033 (RU) (74) Representative: Gevers & Orès  Immeuble le Palatin 2 3 Cours du Triangle CS 80165 92939 Paris La Défense Cedex 92939 Paris La Défense Cedex (FR)