公开(公告)号：US20230235156A1

公开(公告)日：2023-07-27

申请号：US18007814

申请日：2021-06-04

Applicant: Dow Global Technologies LLC ,  PBBPolisur S.R.L.

Inventor： Alexander Williamson ,  Shadid Askar ,  Joel D. Wieliczko ,  Cornelis F.J. Den Doelder ,  Mridula Kapur ,  Kurt F. Hirsekorn ,  Evelyn Auyeung ,  Bo Liu ,  Maria C. Zandueta ,  John P. O'Brien ,  Stephanie M. Whited

IPC: C08L23/08 ,  C08L23/06

CPC classification number: C08L23/0815 ,  C08L23/06 ,  C08L2205/025 ,  C08L2314/02

Abstract: Embodiments are directed towards polyolefin compositions including a high molecular weight polyolefin and a low molecular weight polyolefin.

公开(公告)号：US11685798B2

公开(公告)日：2023-06-27

申请号：US17260271

申请日：2019-07-18

Applicant: Dow Global Technologies LLC

Inventor： Peter S. Martin ,  Yijian Lin ,  Angela I. Padilla-Acevedo ,  Roger L. Kuhlman ,  Shadid Askar ,  Mridula Kapur ,  Todd A. Hogan ,  Joel D. Wieliczko ,  Chuan C. He

IPC: C08F210/16 ,  C08F10/02 ,  C08F4/6592

CPC classification number: C08F210/16 ,  C08F4/65922 ,  C08F2500/01 ,  C08F2500/02 ,  C08F2500/05 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/13 ,  C08F2500/19

Abstract: In various embodiments, a polyethylene formulation has a density of greater than 0.940 g/cm3 when measured according to ASTM D792, and a high load melt index (I21) of 1.0 g/10 min to 10.0 g/10 min when measured according to ASTM D1238 at 190° C. and a 21.6 kg load. Moreover, the polyethylene formulation has a peak molecular weight (Mp(GPC)) of less than 50,000 g/mol, a number average molecular weight (Mn(GPC)) of less than 30,000 g/mol, and a weight fraction (w1) of molecular weight (MW) less than 10,000 g/mol of less than or equal to 10.5 wt %, as determined by Gel Permeation Chromatography (GPC). Articles made from the polyethylene formulation, such as articles made by blow molding processes are also provided.

公开(公告)号：US20210301049A1

公开(公告)日：2021-09-30

申请号：US17260271

申请日：2019-07-18

Applicant: Dow Global Technologies LLC

Inventor： Peter S. Martin ,  Yijian Lin ,  Angela I. Padilla-Acevedo ,  Roger L. Kuhlman ,  Shadid Askar ,  Mridula Kapur ,  Todd A. Hogan ,  Joel D. Wieliczko ,  Chuan C. He

IPC: C08F210/16 ,  C08F4/6592

Abstract: In various embodiments, a polyethylene formulation has a density of greater than 0.940 g/cm3 when measured according to ASTM D792, and a high load melt index (I21) of 1.0 g/10 min to 10.0 g/10 min when measured according to ASTM D1238 at 190° C. and a 21.6 kg load. Moreover, the polyethylene formulation has a peak molecular weight (Mp(GPC)) of less than 50,000 g/mol, a number average molecular weight (Mn(GPC)) of less than 30,000 g/mol, and a weight fraction (w1) of molecular weight (MW) less than 10,000 g/mol of less than or equal to 10.5 wt %, as determined by Gel Permeation Chromatography (GPC). Articles made from the polyethylene formulation, such as articles made by blow molding processes are also provided.