(19)

(11)

EP 4 237 466 A1

(12)

(43) Date of publication: 06.09.2023 Bulletin 2023/36 (21) Application number: 21806660.3 (22) Date of filing: 29.10.2021

(51) International Patent Classification (IPC):  C08G 63/06(2006.01) C08G 63/89(2006.01) (52) Cooperative Patent Classification (CPC): C08G 63/06; C08G 63/89; C12P 7/625; C12N 1/066 (86) International application number: PCT/EP2021/080182 (87) International publication number: WO 2022/090498 (05.05.2022 Gazette 2022/18)

(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: 30.10.2020 US 202017085762 30.10.2020 US 202017085801 (71) Applicant: NOVAMONT S.p.A. 28100 Novara (IT)	(72) Inventor: WHITEHOUSE, Robert Lexington, Massachusetts 02421 (US) (74) Representative: Zanoli, Enrico et al Zanoli & Giavarini S.p.A. Via Melchiorre Gioia, 64 20125 Milano 20125 Milano (IT)