(19)

(11)

EP 3 704 286 A1

(12)

(43) Date of publication: 09.09.2020 Bulletin 2020/37 (21) Application number: 18804756.7 (22) Date of filing: 25.10.2018

(51) International Patent Classification (IPC):  C23C 22/10(2006.01) C23C 22/33(2006.01) C23C 22/08(2006.01) (86) International application number: PCT/US2018/057533 (87) International publication number: WO 2019/089347 (09.05.2019 Gazette 2019/19)

(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: 30.10.2017 US 201762578787 P (71) Applicant: BULK CHEMICALS, INC. Reading, PA 19605 (US)	(72) Inventors: RIVERA, Jose, B. Auburn PA 17922 (US) HANNA, Cody Lancaster PA 19602 (US) (74) Representative: Ghirardi, Valeria et al Cantaluppi & Partners S.r.l. Via Strobel, 8 20133 Milano 20133 Milano (IT)