公开(公告)号：WO2021221988A1

公开(公告)日：2021-11-04

申请号：PCT/US2021/028595

申请日：2021-04-22

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： CHEN, Linfeng ,  BEILHART, Jesse C. ,  GILLESPIE, David T. ,  KAPUR, Mridula ,  MUNRO, Ian M. ,  GARCIA, Eduardo ,  WILLIAMS, Nori ,  AUYEUNG, Evelyn ,  HIRSEKORN, Kurt F.

IPC: C08F4/646 ,  C08F4/651 ,  C08F10/02 ,  C08F210/14 ,  C08F4/654

Abstract: Ziegler-Natta (pro)catalyst systems made with an external electron donor compound, methods of synthesis of same, methods of olefin polymerization using same, and polyolefin polymers made thereby. The external electron donor compound is a (multi-alkoxy)silane.

公开(公告)号：WO2022005533A1

公开(公告)日：2022-01-06

申请号：PCT/US2021/016815

申请日：2021-02-05

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： SANDKUEHLER, Peter Hermann Roland ,  BISWAS, Sanjib ,  GILLESPIE, David T. ,  DEMIRORS, Mehmet ,  ZOGG, Michael J., Jr.

IPC: C08J5/18 ,  C08L23/08 ,  B32B2250/05 ,  B32B2307/581 ,  B32B2439/46 ,  B32B27/08 ,  B32B27/32 ,  C08F210/16 ,  C08F4/659 ,  C08F4/65908 ,  C08F4/65912 ,  C08J2323/08 ,  C08J2423/08 ,  C08L2205/025 ,  C08L23/0815

Abstract: Polyethylene compositions are disclosed that may have a density of 0.910 g/cm3 to 0.924 g/cm3 and a melt index (I2) of 0.1 g/10 minutes to 0.5 g/10 minutes and include a first polyethylene fraction area in the temperature range from 45°C to 80°C of an elution profile via improved comonomer composition distribution (iCCD) analysis method; a second polyethylene fraction area in the temperature range from 80°C to 95°C of the elution profile, and a third polyethylene fraction area in the temperature range from 95°C to 110°C of the elution profile. The second polyethylene fraction area may include at least 5% of the total area of the elution profile. The third polyethylene fraction area may include at least 25% of the total area of the elution profile. A ratio of the first polyethylene fraction area to the second polyethylene fraction area may be from 6 to 15.

公开(公告)号：WO2018175277A1

公开(公告)日：2018-09-27

申请号：PCT/US2018/023057

申请日：2018-03-19

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： KARJALA, Teresa P. ,  KARDOS, Lori L. ,  GILLESPIE, David T. ,  POLK, Zachary L.

IPC: C08F110/02 ,  C08F2/00 ,  C08F4/38 ,  C08F2/38

Abstract: A composition comprising an ethylene-based polymer, wherein the ethylene-based polymer comprises the following properties: a) an Mw(abs) from 130,000 to 162,00 g/mol; b) a melt index (I2) from 1.5 to 3.0 g/10 min; c) an ADF LS from 0.350 to 0.450 for molecular weight ≥ 500,000 g/mol.

公开(公告)号：WO2021138103A1

公开(公告)日：2021-07-08

申请号：PCT/US2020/066335

申请日：2020-12-21

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： BISWAS, Sanjib ,  SHARMA, Rahul ,  DEGROOT, Jacquelyn A. ,  SPIEKERMANN, Erica ,  GINGER, Douglas S. ,  WANG, Jian ,  DEMIRORS, Mehmet ,  GILLESPIE, David T. ,  DO, Hien Q. ,  FONTAINE, Philip P.

IPC: B32B27/32 ,  C08F4/64 ,  C08F210/16 ,  C08L23/08 ,  C08J5/18 ,  B32B2250/03 ,  B32B2250/242 ,  B32B2270/00 ,  B32B2307/31 ,  B32B2307/746 ,  B32B27/08 ,  B32B27/18 ,  C08F4/65908 ,  C08F4/65912 ,  C08L2203/162 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2207/064 ,  C08L23/0815

Abstract: Embodiments of a polyethylene composition are provided, which may include a first polyethylene fraction comprising at least one peak in a temperature range of from 35°C to 70°C in an elution profile via improved comonomer composition distribution (iCCD) analysis method, where a first polyethylene area fraction is an area in the elution profile from 35°C to 70°C, and where the first polyethylene fraction area comprises from 25% to 65% of the total area of the elution profile; and a second polyethylene fraction comprising at least one peak in a temperature range of from 85°C to 120°C in the elution profile, where a second polyethylene area fraction is an area in the elution profile from 85°C to 120°C, and where the second polyethylene fraction area comprises at least 20% of the total area of the elution profile.

公开(公告)号：WO2020243426A1

公开(公告)日：2020-12-03

申请号：PCT/US2020/035115

申请日：2020-05-29

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： HEITSCH, Andrew T. ,  KARJALA, Teresa P. ,  KARDOS, Lori L. ,  CUNNINGHAM, Cassie A. ,  ORTEGA, Jose ,  GILLESPIE, David T. ,  SAI PAPPU, Venkata Krishna ,  O'BRIEN, John P. ,  BAUGH, III, Daniel W.

IPC: C08F110/02

Abstract: A low density polyethylene (LDPE) having a z-average molecular weight Mz (conv) from 425,000 g/mol to 800,000 g/mol, a melt index I 2 less than or equal to 0.20 g/10 min, and a conventional GPC Mw/Mn from 8.0 to 10.6. A LDPE having a GPC-light scattering parameter (LSP) less than 2.00, a ratio of viscosity measured at 0.1 radians/second and 190 °C to a viscosity measured at 100 radians/second and 190 °C that is greater than 50, and a z-average molecular weight Mz (conv) from 425,000 g/mol to 800,000 g/mol.

公开(公告)号：WO2020041233A9

公开(公告)日：2020-02-27

申请号：PCT/US2019/047143

申请日：2019-08-20

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： MAZZOLA, Nicolas Cardoso ,  BISWAS, Sanjib ,  DEGROOT, Jacquelyn A. ,  GILLESPIE, David T.

IPC: B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  B29C48/00 ,  B29C55/28 ,  B32B7/12 ,  C08J5/18

Abstract: The present disclosure provides for a heat-shrinkable, biaxially stretched, multilayer thermoplastic film that includes at least a puncture resistant layer. The puncture resistant layer is formed with a polyethylene based plastomer having a density of 0.890 g/cm 3 to 0.910 g/cm 3 as measured in accordance with ASTM D-792, and a melt index (MI) as measured by ASTM D-1238 at 190 °C/2.16 kg from 0.20 g/10 minutes to 1.5 g/10 minutes. The polyethylene based plastomer has a logM 25% of an upper 25% of a GPC quadrant having a value of 5.1 to 5.7, an intermediate molecular weight distribution (Mw/Mn) of 2.5 to 3, a Mz/Mw value of 2 to 2.5, a Comonomer Distribution Constant value from 60 to 400 and a single SCBD peak between 40-85 °C with a mass fraction of less than 3% above 85 °C as determined by CEF, and a ZSVR value from 1.0 to 5.5. The multilayer thermoplastic film is biaxially stretched at a temperature of 60 °C to 120 °C with a blow-up ratio from 2:1 to 10:1.

公开(公告)号：WO2018175277A8

公开(公告)日：2018-09-27

申请号：PCT/US2018/023057

申请日：2018-03-19

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： KARJALA, Teresa P. ,  KARDOS, Lori L. ,  GILLESPIE, David T. ,  POLK, Zachary L.

IPC: C08F110/02 ,  C08F2/00 ,  C08F4/38 ,  C08F2/38

Abstract: A composition comprising an ethylene-based polymer, wherein the ethylene-based polymer comprises the following properties: a) an Mw(abs) from 130,000 to 162,000 g/mol; b) a melt index (I2) from 1.5 to 3.0 g/10 min; c) an ADF LS from 0.350 to 0.450 for molecular weight ≥ 500,000 g/mol.

公开(公告)号：WO2018160558A1

公开(公告)日：2018-09-07

申请号：PCT/US2018/019947

申请日：2018-02-27

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： KARJALA, Teresa P. ,  ORTEGA, Jose ,  KARDOS, Lori L. ,  GILLESPIE, David T. ,  NAUMOVITZ, John A. ,  LAI, Chuan Yar ,  POLK, Zachary L.

IPC: B32B27/32

Abstract: A composition comprising an ethylene-based polymer which comprises the following properties: a) MWD(conv) from 3.0 to 7.0; b) an ADF IR between 0.230 and 0.260 for molecular weight ≤ 15,000 g/mol c) I2 from 4.0 to 6.5 g/10 min.

公开(公告)号：WO2021221987A1

公开(公告)日：2021-11-04

申请号：PCT/US2021/028585

申请日：2021-04-22

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： CHEN, Linfeng ,  BEILHART, Jesse C. ,  HIRSEKORN, Kurt F. ,  GILLESPIE, David T. ,  MUNRO, Ian M. ,  GARCIA, Eduardo ,  WILLIAMS, Nori ,  KAPUR, Mridula ,  AUYEUNG, Evelyn

IPC: C08F4/649 ,  C08F4/654 ,  C08F210/16 ,  C08F210/14

Abstract: Ziegler-Natta (pro)catalyst systems made with an external electron donor compound, methods of synthesis of same, methods of olefin polymerization using same, and polyolefin polymers made thereby. The external electron donor compound is an azaheterocycle.

公开(公告)号：WO2020106797A1

公开(公告)日：2020-05-28

申请号：PCT/US2019/062336

申请日：2019-11-20

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： DEMIRORS, Mehmet ,  LARIOS, Fabricio Arteaga ,  KAPUR, Mridula ,  FONTAINE, Philip P. ,  GILLESPIE, David T. ,  LIN, Yijian ,  ZHANG, Lanhe ,  BISWAS, Sanjib ,  ALVAREZ, Eduardo ,  STOILJKOVIC, Aleksandar ,  PATEL, Rajen M.

IPC: D04H1/4291 ,  D04H3/007

Abstract: A nonwoven fabric comprises at least one fiber having a first component prepared from at least 75 wt.% of bimodalethylene/alpha-olefin interpolymer composition, wherein the ethylene/alpha-olefin interpolymer composition is characterized by: a density in the range of 0.930 to 0.965 g/cm 3 , a melt index (I2) in the range of from 10 to 60 g/10 minutes, wherein the I2 is measured according to ASTM D1238, 190C, 2.16 kg, a molecular weight distribution, expressed as the ratio of the weight average molecular weight to number average molecular weight (M w(GPC) /M n(GPC) ) as determined by GPC of from 1.5 to 2.6, a tan delta at 1 radian/second of at least 45, a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure, and a full width at half maximum of the high temperature peak is less than 6.0 °C.