Patent SG-11201903393R-A (SG)
Title: Bimodal polyethylene
Inventor: BORSE NITIN
IPC: C08F10/02
Filed: 2017-10-25
Abstract: ccO cc O C () INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 17 May 2018 (17.05.2018) WIPO I PCT olimion °nolo III 01111101 union° oimIE (10) International Publication Number WO 2018/089195 Al (51) International Patent Classification: C08F 210/02 (2006.01) C08F 210/16 (2006.01) CO8F 10/00 (2006.01) C08F 10/02 (2006.01) C08L 23/08 (2006.01) (21) International Application Number: PCT/US2017/058282 (22) International Filing Date: 25 October 2017 (25.10.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/418,913 08 November 2016 (08.11.2016) US (71) Applicant: UNIVATION TECHNOLOGIES, LLC [US/US]; 5555 San Felipe, Suite 1950, Houston, Texas 77056 (US). (72) Inventors: BORSE, Nitin; 2301 N. Brazosport Blvd., Freeport, Texas 77541 (US). CHANDAK, Swapnil; 2301 N. Brazosport Blvd., Freeport, Texas 77541 (US). BAFNA, Ayush; 2301 N. Brazosport Blvd., Freeport, Texas 77541 (US). MURE, Cliff R.; 65 Baekeland Avenue, Middlesex, New Jersey 08846 (US). ZHANG, Yi; 1840 Union Car- bide Drive, South Charleston, West Virginia 25303 (US). LYNN, Timothy R.; 65 Baekeland Avenue, Middlesex, New Jersey 08846 (US). KUHLMAN, Roger L.; 230 Ab- ner Jackson Pkwy., Freeport, Texas 77566 (US). SZUL, John F.; 1840 Union Carbide Drive, South Charleston, West Virginia 25303 (US). (54) Title: BIMODAL POLYETHYLENE -- OHM 22F (Qilu Petrochemical) 0.9 -- --XRT70 (Total) Hostaien 4731B (1.31) 0.8 —Univation PERT Inventive 0.7 2.0 3.0 4.0 5.0 6.0 7.0 Log (M) FIG. 1 (57) : Provided are various bimodal polyethylene, including but not limited to a bimodal polyethylene for a pipe having a density of from 0.9340 to 0.9470 gram/cubic centimeters (g/ccm), a melt index (I2) of from 0.1 to 0.7 gram/10 minute, a melt flow ratio (121/12) of from 20 to 90. The bimodal polyethylene includes a high molecular weight polyethylene component and a low molecular weight polyethylene component which are a reaction product of a polymerization process performed in a single reactor and that employs a bimodal polymerization catalyst system. The bimodal polymerization catalyst system includes a bimodal catalyst system of bis(2-pentamethylphenylamido)ethyl)amine Zirconium dibenzyl and either (tetramethylcyclopentadienyl)(n-propylcyclopentadieny 1)Zirconium dichloride or (tetramethylcyclopentadienyl)(n-propylcyclopentadienyl)zirconium dimethyl in a 3.0:1 molar ratio; and a trim catalyst of (tetramethylcyclopentadienyl)(n-propylcyclopentadienyl)Zirconium dichloridedimethyl in heptane added to adjust melt [Continued on next page] WO 2018/089195 Al MIDEDIMOMOIDEIREEMOOMMEIHMHERMOVOIME (74) Agent: HUEBSCH, Joseph C.; Brooks, Cameron & Hueb- sch, PLLC, 1201 Marquette Avenue South, Suite 400, Min- neapolis, Minnesota 55403 (US). (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)) flow ratio of the bimodal polyethylene.