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1. 发明公开

EP4132982A1 ENHANCED MELT STRENGTH LOW-DENSITY POLYETHYLENE FOR USE IN FILMS OR BLENDS 审中-实审
公开(公告)号：EP4132982A1
公开(公告)日：2023-02-15
申请号：EP21718465.4
申请日：2021-03-29
申请人： Dow Global Technologies LLC
发明人： KARJALA, Teresa P. , NAUMOVITZ, John A. , ZENG, Yongchao , ASKAR, Shadid , INGEHOLM, Joshua R. , MENDENHALL, Jonathan D. , ORTEGA, Jose , O'BRIEN, John P.
IPC分类号： C08F2/34 , C08F2/38 , C08F10/02

2. 发明公开

EP4161973A2 POLYOLEFIN COMPOSITIONS 审中-实审
公开(公告)号：EP4161973A2
公开(公告)日：2023-04-12
申请号：EP21740295.7
申请日：2021-06-04
申请人： Dow Global Technologies LLC , PBBPolisur S.r.l.
发明人： WILLIAMSON, Alexander , ASKAR, Shadid , WIELICZKO, Joel D. , DOELDER, Cornelis F.J. Den , KAPUR, Mridula , HIRSEKORN, Kurt F. , AUYEUNG, Evelyn , LIU, Bo , ZANDUETA, Maria C. , O'BRIEN, John P. , WHITED, Stephanie M.
IPC分类号： C08F2/00 , C08L23/08

3. 发明公开

EP3830147A1 POLYETHYLENE FORMULATIONS FOR LARGE PART BLOW MOLDING APPLICATIONS 审中-实审
公开(公告)号：EP3830147A1
公开(公告)日：2021-06-09
申请号：EP19756269.7
申请日：2019-07-18
申请人： Dow Global Technologies LLC
发明人： MARTIN, Peter S. , LIN, Yijian , PADILLA-ACEVEDO, Angela I. , KUHLMAN, Roger L. , ASKAR, Shadid , KAPUR, Mridula , HOGAN, Todd A. , WIELICZKO, Joel D. , HE, Chuan C.
IPC分类号： C08F210/16 , C08F4/6592 , C08F210/14

4. 发明公开

EP4098670A1 BIMODAL POLY(ETHYLENE-CO-1-ALKENE) COPOLYMER 审中-实审
公开(公告)号：EP4098670A1
公开(公告)日：2022-12-07
申请号：EP22186445.7
申请日：2020-04-28
申请人： Dow Global Technologies LLC
发明人： ASKAR, Shadid , MARTIN, Peter S. , LIU, Bo , SZUL, John F. , KUHLMAN, Roger L , KAPUR, Mridula Babli
IPC分类号： C08F210/16
摘要： The invention relates to a bimodal poly(ethylene-co-1-alkene) copolymer comprising a higher molecular weight poly(ethylene-co-1-alkene) copolymer component (HMW copolymer component) and a lower molecular weight poly(ethylene-co-1-alkene) copolymer component (LMW copolymer component), the copolymer being characterized by a combination of features comprising each of features (a) to (e) and feature (f2) and, optionally feature (g): (a) a density greater than 0.955 gram per cubic centimeter (g/cm 3 ) measured according to ASTM D792-13 (Method B, 2-propanol); (b) a first molecular weight distribution that is a ratio of M w /M n from 16 to 18, wherein M w is weight-average molecular weight and M n is numberaverage molecular weight, both measured by Gel Permeation Chromatography (GPC); (c) a second molecular weight distribution that is a ratio of M z /M w from 11 to 15 , wherein M z is z-average molecular weight and M w is weight-average molecular weight, both measured by GPC; (d) a component weight fraction amount wherein the HMW copolymer component is less than 28 weight percent (wt%) of the combined weight of the HMW and LMW copolymer components; and (e) a high load melt index (HLMI or I 21 ) from 20 to 45 grams per 10 minutes (g/10 min.) measured according to ASTM D1238-13 (190° C., 21.6 kg); and (f2) an environmental stress-cracking resistance in hours as a function of melt flow ratio, wherein the function is defined by Equation 1: ESCR (10% Igepal, F50) > (10 * MFR5 * 1 hour) - 150 hours (Eq. 1), wherein > means greater than; * means multiplication; ESCR (10% Igepal, F50) is the number of hours to failure measured according to ASTM D1693-15, Method B; and MFR5 is a ratio of the (e) HLMI divided by a melt index I 5 expressed in g/10 min. measured according to ASTM D1238-13 (190° C., 5.0 kg); and, optionally (g) a resin swell t1000 of greater than 7.7 seconds, measured according to the Resin Swell t1000 Test Method.

6. 发明公开

EP3962972A1 BIMODAL POLY(ETHYLENE-CO-1-ALKENE) COPOLYMER 审中-实审
公开(公告)号：EP3962972A1
公开(公告)日：2022-03-09
申请号：EP20729266.5
申请日：2020-04-28
申请人： Dow Global Technologies LLC
发明人： ASKAR, Shadid , MARTIN, Peter S. , LIU, Bo , SZUL, John F. , KUHLMAN, Roger L. , KAPUR, Mridula Babli
IPC分类号： C08F210/16

7. 发明公开

EP3962969A1 BIMODAL POLY(ETHYLENE-CO-1-ALKENE) COPOLYMER 审中-实审
公开(公告)号：EP3962969A1
公开(公告)日：2022-03-09
申请号：EP20725062.2
申请日：2020-04-28
申请人： Dow Global Technologies LLC
发明人： ASKAR, Shadid , MARTIN, Peter S. , LIU, Bo , SZUL, John F. , KUHLMAN, Roger L. , KAPUR, Mridula Babli
IPC分类号： C08F210/16

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