Patent SG-11201900507S-A (SG)
Title: Oxygen barrier plastic material
Inventor: DECORTES ANTONELLO
IPC: B32B27/36
Filed: 2017-07-26
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 15 February 2018 (15.02.2018) WIPO I PCT omit VIII °nolo omoionolionoiliflo oimIE (10) International Publication Number WO 2018/028996 Al (51) International Patent Classification: B32B 27/08 (2006.01) B32B 27/30 (2006.01) B32B 9/02 (2006.01) B32B 27/32 (2006.01) B32B 27/06 (2006.01) B32B 27/34 (2006.01) B32B 27/18 (2006.01) B32B 27/36 (2006.01) B32B 27/28 (2006.01) (21) International Application Number: PCT/EP2017/068927 (22) International Filing Date: 26 July 2017 (26.07.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 16183923.8 12 August 2016 (12.08.2016) EP (71) Applicant: CLARIANT INTERNATIONAL LTD [CH/CH]; Rothausstr. 61, 4132 Muttenz (CH). (72) Inventors: DECORTES, Antonello; Via Gaetano Previati 11, 20149 Milan (IT). MULLER, Thierry; 17, me du com- merce, 9026 Ettelbruck (LU). (74) Agent: JACOBI, Carola; Industriepark Hochst / G 860, 65926 Frankfurt (DE). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) (54) Title: OXYGEN BARRIER PLASTIC MATERIAL FIG 1. 1 77— Muter .. Layer . Passive Layer Active Layer Outer Layer ...... 7 Passive Layer Active Laye r inner Law 1-1 00 O 00 1-1 O C (57) : The invention relates to a multilayer packaging film comprising at least three different types of layers (A), (B), and (C): (A) is at least one outer layer, (B) is at least one passive oxygen barrier layer, (C) is at least one active oxygen scavenging lay- er, characterized in that - the at least one outer layer (A) is a thermoplastic polymer; - the at least one passive oxygen barrier layer (B) is selected from the group consisting of ethylene vinyl alcohol copolymers, polyvinylchloride, copolymers of polyvinyl chloride, polyvinyl alcohol, polyvinylidene dichloride, copolymers of polyvinylidene dichloride, polyacrylonitrils, copolymers of polyacryloni- trils, polyethylene terephthalate, polyethylene naphthalate, polyethylenefuranoate, polysiloxanes, and polyamides; - the at least one active oxygen scavenging layer (C) comprises a) a plastic material which is a polyolefm, a polyolefm copolymer or a polystyrene, and additives (b) and (c), wherein b) is a polyterpenic resin; and c) is a transition metal catalyst