公开(公告)号：WO2019118461A1

公开(公告)日：2019-06-20

申请号：PCT/US2018/064951

申请日：2018-12-11

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： WHITED, Stephanie, M. ,  ATHREYA, Siddharth, Ram ,  KAPUR, Mridula ,  STOLARZ, Alex ,  VELASQUEZ, Adriana

IPC: C08F210/16 ,  C08L23/08

CPC classification number: C08L23/0815 ,  A01G25/023 ,  C08F210/16 ,  C08L2203/18 ,  C08L2205/025 ,  C08L2308/00 ,  C08L2314/02 ,  F16L9/12 ,  C08K3/04 ,  C08F210/14 ,  C08F2500/05 ,  C08F2500/12 ,  C08F2500/13 ,  C08F2500/04

Abstract: The present disclosure provides formulation. The formulation contains a high density polyethylene composition containing (i) a high molecular weight component including an ethylene/a-olefin copolymer, the high molecular weight component having a density from 0.924 to 0.930 g/cc and a high load melt index (121) from 0.3 to 0.9 g/10 min; and (ii) a low molecular weight component including an ethylene-based polymer selected from the group consisting of an ethylene homopolymer and an ethylene/a-olefin copolymer. The high density polyethylene composition has (a) a density from 0.950 to 0.956 g/cc; (b) a high load melt index (121) from 15 to 28 g/10 min; (c) an 121/12 of at least 85; (d) a notched constant tensile load failure time at 35% yield stress of greater than 90 hours; and (e) an environmental stress crack resistance (ESCR) F0 value, according to ASTM D1693 - condition B (100% IGEPAL), of greater than 2,000 hours.

公开(公告)号：WO2022132813A1

公开(公告)日：2022-06-23

申请号：PCT/US2021/063381

申请日：2021-12-14

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： KUMAR, Bhawesh ,  STOLARZ, Alex

IPC: C08L23/08

Abstract: A high strength multimodal polyethylene composition useful for manufacturing a plastic article therefrom, the composition including a mixture of: (a) at least one first polymer resin comprising a high molecular weight copolymer resin having a molecular weight of greater than 350,000 g/mol; (b) at least one second polymer resin comprising a low molecular weight homopolymer resin having a molecular weight of less than 30,000 g/mol; and (c) at least one third polymer resin comprising a medium molecular weight copolymer resin having a molecular weight of from 50,000 g/mol to 150,000 g/mol; wherein the high strength multimodal polyethylene composition has minimum required strength of greater than 11.3 MPa; a process for producing the above composition; and a pipe article made from the above composition.

公开(公告)号：EP4263700A1

公开(公告)日：2023-10-25

申请号：EP21840362.4

申请日：2021-12-14

Applicant: Dow Global Technologies LLC

Inventor： KUMAR, Bhawesh ,  STOLARZ, Alex

IPC: C08L23/08

公开(公告)号：EP4475664A1

公开(公告)日：2024-12-18

申请号：EP23719596.1

申请日：2023-02-09

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： KUMAR, Bhawesh ,  MEHTA, Rujul M. ,  STOLARZ, Alex ,  ANDERSON, Rachel C. ,  KAPUR, Mridula ,  DARUNTE, Lalit A. ,  WHITED, Stephanie M.

IPC: A01G25/02 ,  C08F2/00 ,  C08L23/08

公开(公告)号：EP4475663A1

公开(公告)日：2024-12-18

申请号：EP23710162.1

申请日：2023-02-09

Applicant: Dow Global Technologies LLC

Inventor： MEHTA, Rujul M. ,  STOLARZ, Alex ,  ANDERSON, Rachel C. ,  HE, Chuan C. ,  KAPUR, Mridula

IPC: A01G25/02 ,  C08F210/16 ,  C08L23/08

公开(公告)号：EP3724241A1

公开(公告)日：2020-10-21

申请号：EP18834088.9

申请日：2018-12-11

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： WHITED, Stephanie, M. ,  ATHREYA, Siddharth, Ram ,  KAPUR, Mridula ,  STOLARZ, Alex ,  VELASQUEZ, Adriana

IPC: C08F210/16 ,  C08L23/08