(19)

(11)

EP 4 081 594 A1

(12)

(43) Date of publication: 02.11.2022 Bulletin 2022/44 (21) Application number: 19957492.2 (22) Date of filing: 27.12.2019

(51) International Patent Classification (IPC):  C08L 23/14(2006.01) C08K 5/01(2006.01) C08K 5/14(2006.01) C08J 9/00(2006.01) C08L 23/16(2006.01) C08K 5/101(2006.01) C08K 5/3415(2006.01) (52) Cooperative Patent Classification (CPC): C08K 5/14; C08L 23/14; C08K 5/134; C08K 5/526; C08J 2323/14; C08J 2423/12; C08J 2423/08; C08J 9/0023; C08J 9/0061; C08J 9/0028; C08J 2323/16   C-Sets: C08K 5/14, C08L 23/14; C08K 5/526, C08L 23/14; C08L 23/14, C08K 5/14, C08L 23/12, C08K 5/3415; C08L 23/14, C08K 5/14, C08L 23/0815, C08K 5/3415; C08K 5/134, C08L 23/14; (86) International application number: PCT/RU2019/001042 (87) International publication number: WO 2021/133203 (01.07.2021 Gazette 2021/26)

(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: VOLKOV, Alexey Mikhailovich Seversk, 636037 (RU) RYZHIKOVA, Irina Gennadievna Seversk, 636037 (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)