公开(公告)号：WO2021202483A1

公开(公告)日：2021-10-07

申请号：PCT/US2021/024824

申请日：2021-03-30

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： CHANDAK, Swapnil B. ,  BORSE, Nitin K. ,  KUHLMAN, Roger L. ,  SZUL, John F.

IPC: C08F210/16 ,  C08J5/18 ,  C08F4/6592 ,  C08F4/64 ,  C08F210/14 ,  C08F4/659 ,  C08F4/65912 ,  C08F4/65916 ,  C08J2323/08

Abstract: Provided are bimodal linear low density polyethylene copolymers (B-LLDPE copolymers) that have a combination of improved properties comprising at least one processability characteristic similar or better than that of an unblended monomodal ZN-LLDPE and a dart impact property similar or better than that of an unblended monomodal MCN-LLDPE. For the various aspects, the B-LLDPE copolymer has a density from 0.8900 to 0.9300 g/cm3; a melt index (I2) from 0.1 g/10 min. to 5 g/10 min.; a Mz from 600,000 to 1,900,000 g/mol; and a SHI from 5.35 to 75 η*(1.0)/η*(100). The B-LLDPE copolymer can be further characterized by a first melt flow ratio (I21/I2) from 32 to 140 and a first molecular weight ratio (Mz/Mw) from 4.5 to 11.

公开(公告)号：WO2021202486A1

公开(公告)日：2021-10-07

申请号：PCT/US2021/024828

申请日：2021-03-30

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： CHANDAK, Swapnil B. ,  BORSE, Nitin K. ,  KUHLMAN, Roger L. ,  SZUL, John F.

IPC: C08F210/16 ,  C08J5/18 ,  C08F4/6592 ,  C08F4/64 ,  C08F210/14 ,  C08F4/659 ,  C08F4/65912 ,  C08F4/65916 ,  C08J2323/08

Abstract: Provided are bimodal linear low density polyethylene copolymers (B-LLDPE copolymers) that have a combination of improved properties comprising at least one processability characteristic similar or better than that of an unblended monomodal ZN-LLDPE and a dart impact property similar or better than that of an unblended monomodal MCN-LLDPE. For the various aspects, the B-LLDPE copolymer has a density from 0.8900 to 0.9300 g/cm3; a melt index (I2) from 0.1 g/10 min. to 5 g/10 min.; a Mz from 600,000 to 1,200,000 g/mol; and a hexane extractables content present in a value of up to 2.6 wt.% as measured according to ASTM D-5227:95. The B-LLDPE copolymer can be further characterized by a first melt flow ratio (I21/I2) from 25 to 65 and a first molecular weight ratio (Mz/Mw) from 3.5 to 5.5.

公开(公告)号：WO2023064203A1

公开(公告)日：2023-04-20

申请号：PCT/US2022/046155

申请日：2022-10-10

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： LIU, Bo ,  BORSE, Nitin K. ,  DARUNTE, Lalit A. ,  PEARSON, David M. ,  KAPUR, Mridula ,  CHEN, Linfeng ,  ZENG, Yongchao ,  HEITSCH, Andrew T.

IPC: C08F210/16 ,  C08L23/08

Abstract: Embodiments are directed towards ethylene/1-hexene copolymers made from ethylene and hexene, wherein the ethylene/1-hexene copolymer has a density from 0.850 to 0.940 g/cm3, a melt index (I21) from 0.1 to 50 dg/ min, a melt index (I21/I2) ratio less than or equal to 18.5, a Mw(Abs)/Mn(Abs) from 2.0 to 3.5, a Mz(Abs)/Mw(Abs) from 1.7 to 4.5, and a cumulative detector fraction (CDFLS) at a molecular weight of >1,000,000 g/mol of greater than 100*(0.0536 - I21*0.00224)%.

公开(公告)号：EP4126997A1

公开(公告)日：2023-02-08

申请号：EP21720347.0

申请日：2021-03-30

Applicant: Dow Global Technologies LLC

Inventor： CHANDAK, Swapnil B. ,  BORSE, Nitin K. ,  KUHLMAN, Roger L. ,  SZUL, John F.

IPC: C08F210/16 ,  C08J5/18 ,  C08F4/6592 ,  C08F4/64 ,  C08F210/14

公开(公告)号：EP4416200A1

公开(公告)日：2024-08-21

申请号：EP22813365.8

申请日：2022-10-10

Applicant: Dow Global Technologies LLC

Inventor： LIU, Bo ,  BORSE, Nitin K. ,  DARUNTE, Lalit A. ,  PEARSON, David M. ,  KAPUR, Mridula ,  CHEN, Linfeng ,  ZENG, Yongchao ,  HEITSCH, Andrew T.

IPC: C08F210/16 ,  C08L23/08

CPC classification number: C08F210/16 ,  C08L2205/02520130101 ,  C08L2207/2020130101 ,  C08L2207/06620130101 ,  C08L23/0815

公开(公告)号：EP4126998A1

公开(公告)日：2023-02-08

申请号：EP21720613.5

申请日：2021-03-30

Applicant: Dow Global Technologies LLC

Inventor： CHANDAK, Swapnil B. ,  BORSE, Nitin K. ,  KUHLMAN, Roger L. ,  SZUL, John F.

IPC: C08F210/16 ,  C08J5/18 ,  C08F4/6592 ,  C08F4/64 ,  C08F210/14