Patent SG-11201908302Y-A (SG)
Title: Polypropylene composition suitable for extrusion coating application
Inventor: MENG SHENG
IPC: B32B27/32
Filed: 2017-04-06
Abstract: 110 120 130 140 150 160 170 Sealing temperature('C) W O 20 18/ 1867 98 Al (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 11 October 2018 (11.10.2018) WIPO I PCT °Ens °noI0 OH11010101111HI10111111 0IIIIII (10) International Publication Number WO 2018/186798 Al —4—Example 1 —IR— Example 2 —4E—Example 3 • Exa mple 4 4 - —Example 5 Exa mole 6 —0—Comparative example 1 —0—Comparative ex ample 2 (51) International Patent Classification: B32B 27/32 (2006.01) CO8L 23/06 (2006.01) CO8L 23/14 (2006.01) C08J 5/18 (2006.01) CO8L 23/12 (2006.01) (21) International Application Number: PCT/SG2017/050196 (22) International Filing Date: 06 April 2017 (06.04.2017) (25) Filing Language: English (26) Publication Language: English (71) Applicant: THE POLYOLEFIN COMPANY (SINGA- PORE) PTE LTD [SG/SG]; 150 Beach Road, #10-00 Gate- way West, Singapore 189720 (SG). (72) Inventor: MENG, Sheng; c/o The Polyolefm Company (Singapore) Pte. Ltd., 150 Beach Road, #10-00 Gateway West, Singapore 189720 (SG). (74) Agent: KINNAIRD, James Welsh; Marks & Clerk Singa- pore LLP, Tanjong Pagar, P 0 Box 636, Singapore 910816 (SG). (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, 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, (54) Title: POLYPROPYLENE COMPOSITION SUITABLE FOR EXTRUSION COATING APPLICATION 14 FIG. 1 (57) : Disclosed herein is an extrusion coating composition blend, said blend requiring the following components: (a) from about 0 wt% to about 15 wt% of at least one homopolypropylene resin that has a melt flow rate of from 2 to 100 g/10min at 230°C; (b) from about 70 wt% to about 95 wt% of a propylene random copolymer or terpolymer having a melt flow rate of from 2 to 30g/ 10min at 230° C; and (c) from 5 wt% to about 15 wt% of a low density polyethylene having a density of 0.910 to 0.940 and a melt flow rate of from 7 to 50 g/10min at 230° C. Uses of the blend to form a film, the film itself and use of the film are also disclosed herein. [Continued on next page] WO 2018/186798 Al MIDEDIMOIMEMIEMN311101100MHEMOVOIS 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). Declarations under Rule 4.17: of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3))