公开(公告)号：US12275809B2

公开(公告)日：2025-04-15

申请号：US18487175

申请日：2023-10-16

Applicant: Chevron Phillips Chemical Company LP

Inventor： Jeremy M. Praetorius ,  Yongwoo Inn ,  Alfred E. Brown, Jr. ,  Brandy Rutledge-Ryal ,  Carlos A. Cruz ,  Jay M. Chaffin

IPC: C08F210/16 ,  C08F4/6592 ,  C08F210/02 ,  C08L23/0807

Abstract: Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan δ at 0.1 sec−1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec−1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.

公开(公告)号：US20210024728A1

公开(公告)日：2021-01-28

申请号：US16522788

申请日：2019-07-26

Applicant: Chevron Phillips Chemical Company LP

Inventor： Carlos A. Cruz ,  Yongwoo Inn ,  Justin Lumbley ,  Brandy Rutledge-Ryal ,  John R. Rathman ,  Jennifer L. Hicks ,  Jay M. Chaffin

IPC: C08L23/08 ,  C08F210/16 ,  C08F4/6592 ,  C08K3/08

Abstract: Ethylene-based polymers having a density of 0.952 to 0.965 g/cm3, a high load melt index (HLMI) from 5 to 25 g/10 min, a weight-average molecular weight from 275,000 to 450,000 g/mol, a number-average molecular weight from 15,000 to 40,000 g/mol, a viscosity at HLMI from 1400 to 4000 Pa-sec, and a tangent delta at 0.1 sec−1 from 0.65 to 0.98 degrees. These polymers have the processability of chromium-based resins, but with improved stress crack resistance, and can be used in large-part blow molding applications.

公开(公告)号：US20230124846A1

公开(公告)日：2023-04-20

申请号：US18062091

申请日：2022-12-06

Applicant: Chevron Phillips Chemical Company LP

Inventor： Jeremy M. Praetorius ,  Yongwoo Inn ,  Alfred E. Brown, JR. ,  Brandy Rutledge-Ryal ,  Carlos A. Cruz ,  Jay M. Chaffin

IPC: C08F210/02 ,  C08F210/16 ,  C08L23/08

Abstract: Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3. a ratio of HLMI/MI from 185 to 550. an IB parameter from 1.46 to 1.80, a tan δ at 0.1 sec-1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec-1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.

公开(公告)号：US20230019739A1

公开(公告)日：2023-01-19

申请号：US17935612

申请日：2022-09-27

Applicant: Chevron Phillips Chemical Company LP

Inventor： Carlos A. Cruz ,  Yongwoo Inn ,  John R. Rathman ,  Youlu Yu ,  Ashish M. Sukhadia ,  Jay M. Chaffin

IPC: C08F210/02 ,  C08K5/14

Abstract: Ethylene-based polymers are generally characterized by a high load melt index of less than 12 g/10 min, a weight-average molecular weight from 200,000 to 550,000 g/mol, a number-average molecular weight from 18,000 to 48,000 g/mol, a CY-a parameter of less than 0.12, a tan δ at 0.1 sec-1 from 0.5 to 0.9 degrees, a tan δ at 100 sec-1 from 0.5 to 0.75 degrees, and a viscosity at 0.001 sec-1 from 1.3 x 106 to 1 x 107 Pa-sec. These ethylene polymers can be produced by peroxide-treating a bimodal molecular weight distribution dual metallocene-catalyzed resin, and can be used to produce blow molded bottles and other blow molded products.

公开(公告)号：US12234348B2

公开(公告)日：2025-02-25

申请号：US17745962

申请日：2022-05-17

Applicant: Chevron Phillips Chemical Company LP

Inventor： Carlos A. Cruz ,  Yongwoo Inn ,  Justin Lumbley ,  Brandy Rutledge-Ryal ,  John R. Rathman ,  Jennifer L Hicks ,  Jay M. Chaffin

IPC: C08F210/16 ,  C08F4/6592 ,  C08K3/08 ,  C08L23/0807

Abstract: Ethylene-based polymers having a density of 0.952 to 0.965 g/cm3, a high load melt index (HLMI) from 5 to 25 g/10 min, a weight-average molecular weight from 275,000 to 450,000 g/mol, a number-average molecular weight from 15,000 to 40,000 g/mol, a viscosity at HLMI from 1400 to 4000 Pa-sec, and a tangent delta at 0.1 sec−1 from 0.65 to 0.98 degrees. These polymers have the processability of chromium-based resins, but with improved stress crack resistance, and can be used in large-part blow molding applications.

公开(公告)号：US11505630B2

公开(公告)日：2022-11-22

申请号：US17200976

申请日：2021-03-15

Applicant: Chevron Phillips Chemical Company LP

Inventor： Carlos A. Cruz ,  Yongwoo Inn ,  John R. Rathman ,  Youlu Yu ,  Ashish M. Sukhadia ,  Jay M. Chaffin

IPC: C08F10/02 ,  C08F210/16 ,  C08F210/02 ,  C08K5/14

Abstract: Ethylene-based polymers are generally characterized by a high load melt index of less than 12 g/10 min, a weight-average molecular weight from 200,000 to 550,000 g/mol, a number-average molecular weight from 18,000 to 48,000 g/mol, a CY-a parameter of less than 0.12, a tan δ at 0.1 sec−1 from 0.5 to 0.9 degrees, a tan δ at 100 sec−1 from 0.5 to 0.75 degrees, and a viscosity at 0.001 sec−1 from 1.3×106 to 1×107 Pa-sec. These ethylene polymers can be produced by peroxide-treating a bimodal molecular weight distribution dual metallocene-catalyzed resin, and can be used to produce blow molded bottles and other blow molded products.

公开(公告)号：US20220119562A1

公开(公告)日：2022-04-21

申请号：US17074784

申请日：2020-10-20

Applicant: Chevron Phillips Chemical Company LP

Inventor： Jeremy M. Praetorius ,  Yongwoo Inn ,  Alfred E. Brown, JR. ,  Brandy Rutledge-Ryal ,  Carlos A. Cruz ,  Jay M. Chaffin

IPC: C08F210/02

Abstract: Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan δ at 0.1 sec−1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec−1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.

公开(公告)号：US20240052073A1

公开(公告)日：2024-02-15

申请号：US18487175

申请日：2023-10-16

Applicant: Chevron Phillips Chemical Company LP

Inventor： Jeremy M. Praetorius ,  Yongwoo Inn ,  Alfred E. Brown, JR. ,  Brandy Rutledge-Ryal ,  Carlos A. Cruz ,  Jay M. Chaffin

IPC: C08F210/02 ,  C08F210/16 ,  C08L23/08

CPC classification number: C08F210/02 ,  C08F210/16 ,  C08L23/0815 ,  C08F2420/01 ,  C08F2420/03 ,  C08F4/65925

Abstract: Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan δ at 0.1 sec−1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec−1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.

公开(公告)号：US11866529B2

公开(公告)日：2024-01-09

申请号：US18062091

申请日：2022-12-06

Applicant: Chevron Phillips Chemical Company LP

Inventor： Jeremy M. Praetorius ,  Yongwoo Inn ,  Alfred E. Brown, Jr. ,  Brandy Rutledge-Ryal ,  Carlos A. Cruz ,  Jay M. Chaffin

IPC: C08L23/08 ,  C08F210/16 ,  C08F4/653 ,  C08F4/6592 ,  C08F210/02

CPC classification number: C08F210/02 ,  C08F210/16 ,  C08L23/0815 ,  C08F4/65925 ,  C08F4/65927 ,  C08F2420/01 ,  C08F2420/03

Abstract: Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan δ at 0.1 sec−1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec−1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.

公开(公告)号：US11814455B2

公开(公告)日：2023-11-14

申请号：US17935612

申请日：2022-09-27

Applicant: Chevron Phillips Chemical Company LP

Inventor： Carlos A. Cruz ,  Yongwoo Inn ,  John R. Rathman ,  Youlu Yu ,  Ashish M. Sukhadia ,  Jay M. Chaffin

IPC: C08F210/02 ,  C08F210/16 ,  C08K5/14 ,  C08F10/02

CPC classification number: C08F210/02 ,  C08K5/14 ,  C08F10/02 ,  C08F210/16 ,  C08F10/02 ,  C08F2810/10

Abstract: Ethylene-based polymers are generally characterized by a high load melt index of less than 12 g/10 min, a weight-average molecular weight from 200,000 to 550,000 g/mol, a number-average molecular weight from 18,000 to 48,000 g/mol, a CY-a parameter of less than 0.12, a tan δ at 0.1 sec−1 from 0.5 to 0.9 degrees, a tan δ at 100 sec−1 from 0.5 to 0.75 degrees, and a viscosity at 0.001 sec−1 from 1.3×106 to 1×107 Pa-sec. These ethylene polymers can be produced by peroxide-treating a bimodal molecular weight distribution dual metallocene-catalyzed resin, and can be used to produce blow molded bottles and other blow molded products.