公开(公告)号：US20240360265A1

公开(公告)日：2024-10-31

申请号：US18683885

申请日：2022-09-30

申请人： LG Chem, Ltd.

发明人： Ji Hyun Park ,  Jung Won Park ,  Chang Jong Kim ,  Eun Ji Shin ,  Seok Pil Sa ,  Seul Ki Im ,  Hyun Mo Lee ,  Yun Kon Kim

IPC分类号： C08F297/02 ,  C08L23/12

CPC分类号： C08F297/02 ,  C08L23/12

摘要： A multiblock copolymer, a method for preparing same, and a thermoplastic resin composition comprising polypropylene and the multiblock copolymer are described herein. The block copolymer has excellent processability and excellent compatibility with polypropylene, and the thermoplastic resin composition of the present disclosure using the same shows excellent low temperature impact strength and may be usefully used as a thermoplastic resin composition for the manufacture of a product requiring high impact resistance such as automotive parts.

公开(公告)号：US12122905B2

公开(公告)日：2024-10-22

申请号：US17601577

申请日：2020-05-15

申请人： LG Chem, Ltd.

发明人： Hyun Mo Lee ,  Seok Pil Sa ,  Seul Ki Im ,  Ji Hyun Park ,  Yun Kon Kim ,  Ki Soo Lee ,  Eun Ji Shin

IPC分类号： C08L53/00 ,  C08F210/14 ,  C08F210/16 ,  C08F212/08 ,  C08F297/02

CPC分类号： C08L53/00 ,  C08F210/14 ,  C08F212/08 ,  C08F297/02 ,  C08F210/16

摘要： A polyolefin-polystyrene multi-block copolymer and a method of producing the same is disclosed herein. In some embodiments, the polyolefin-polystyrene multi-block copolymer has a first complex viscosity of 40,000 Pa·s to 350,000 Pa·s at a temperature of 160° C. and a first frequency of 0.5 rad/s, and has a second complex viscosity of 900 Pa·s to 3,500 Pa·s at a temperature of 160° C. and a second frequency of 125 rad/s. The polyolefin-polystyrene multi-block copolymer has a structure in which polystyrene chains are attached to both ends of a polyolefin chain.

公开(公告)号：US20230340243A1

公开(公告)日：2023-10-26

申请号：US18017022

申请日：2021-07-30

申请人： LG Chem, Ltd.

发明人： Hyun Mo Lee ,  Seul Ki Im ,  Ji Hyun Park ,  Yun Kon Kim ,  Seung Jung Yu ,  Seok Pil Sa ,  Ki Soo Lee ,  Eun Ji Shin

IPC分类号： C08L23/12

CPC分类号： C08L23/12

摘要： The present invention relates to a thermoplastic resin composition including a polyolefin-polystyrene-based multiblock copolymer having a structure in which a polystyrene chain is attached to both ends of a polypropylene and polyolefin chain, and the thermoplastic resin composition according to the present invention has excellent elongation and tensile strength as well as high fluidity properties, and thus, may exhibit excellent molding processability.

公开(公告)号：US20230303753A1

公开(公告)日：2023-09-28

申请号：US18022818

申请日：2021-08-25

申请人： LG Chem, Ltd.

发明人： Yun Kon Kim ,  Seul Ki Im ,  Hyun Mo Lee ,  Ji Hyun Park ,  Dong Min Kim ,  Mi Kyung Kim ,  Ki Soo Lee ,  Eun Ji Shin ,  Seok Pil Sa ,  Seung Jung Yu

IPC分类号： C08F297/08

CPC分类号： C08F297/086

摘要： The present invention relates to a method for preparing a polyolefin-polystyrene-based multiblock copolymer having a uniform structure and showing excellent physical properties through continuous type coordination polymerization and batch type anionic polymerization.

公开(公告)号：US20220177634A1

公开(公告)日：2022-06-09

申请号：US17599036

申请日：2020-05-15

申请人： LG Chem, Ltd.

发明人： Seul Ki Im ,  Seok Pil Sa ,  Hyun Mo Lee ,  Ji Hyun Park ,  Yun Kon Kim ,  Ki Soo Lee ,  Eun Ji Shin

IPC分类号： C08F297/02

摘要： A polyolefin-polystyrene multi-block copolymer and a method of making the same are disclosed herein. In some embodiments, a polyolefin-polystyrene multi-block copolymer satisfies conditions (a) to (c) determined by gel permeation chromatography (GPC) and condition (d) determined by 13C NMR, (a) a weight average molecular weight (Mw) of 50,000 g/mol to 150,000 g/mol, (b) a molecular weight distribution of 1.5 to 3.0, a differential of concentration fraction to logarithm of molecular weight as a function of logarithm of molecular weight, obtained from GPC, is modeled to a Gaussian function represented by Equation 1, and (d) a polyolefin block contained in the polyolefin-polystyrene multi-block copolymer includes at least one branched chain. The polyolefin-polystyrene multi-block copolymer has a structure in which polystyrene chains are attached to both ends of a polyolefin chain. The polyolefin-polystyrene multi-block copolymer has excellent mechanical properties such as tensile strength, elongation at break, and modulus.

公开(公告)号：US20240182693A1

公开(公告)日：2024-06-06

申请号：US18285045

申请日：2022-09-30

申请人： LG Chem, Ltd.

发明人： Yun Kon Kim ,  Eun Ji Shin ,  Seok Pil Sa ,  Seul Ki Im ,  Hyun Mo Lee ,  Ji Hyun Park

IPC分类号： C08L23/12 ,  C08F297/02

CPC分类号： C08L23/12 ,  C08F297/02

摘要： Provided is a thermoplastic resin composition comprising polypropylene and a multi-block copolymer. The thermoplastic resin composition including the polypropylene and the multi-block copolymer exhibits excellent scratch resistance, and thus may be usefully used as a resin composition in the manufacturing of products requiring scratch resistance, such as automotive interior materials.

公开(公告)号：US20230116142A1

公开(公告)日：2023-04-13

申请号：US17781463

申请日：2021-04-16

申请人： LG Chem, Ltd.

发明人： Seul Ki Im ,  Hyun Mo Lee ,  Ji Hyun Park ,  Yun Kon Kim ,  Seung Jung Yu ,  Seok Pil Sa ,  Ki Soo Lee ,  Eun Ji Shin

IPC分类号： C08F297/02

摘要： A polyolefin-polystyrene-based multiblock copolymer and method of making the same are disclosed herein. In some embodiments, a polyolefin-polystyrene-based multiblock copolymer satisfies conditions (a) a weight average molecular weight is 100,000 to 300,000 g/mol; (b) molecular weight distribution is 1.5 to 3.0; (c) measured results of gel permeation chromatography, a graph having an x-axis of log Mw and a y-axis of dw/dlog Mw, are fit to a Gaussian function, where all constants satisfy −0.01

公开(公告)号：US20230287207A1

公开(公告)日：2023-09-14

申请号：US18017021

申请日：2021-07-30

申请人： LG Chem, Ltd.

发明人： Ji Hyun Park ,  Seul Ki Im ,  Hyun Mo Lee ,  Yun Kon Kim ,  Seung Jung Yu ,  Seok Pil Sa ,  Ki Soo Lee ,  Eun Ji Shin

IPC分类号： C08L53/00 ,  C08L23/12

CPC分类号： C08L53/00 ,  C08L23/12

摘要： The present invention relates to a thermoplastic resin composition including a polyolefin-polystyrene-based multi-block copolymer having a structure in which a polystyrene chain is attached to both ends of a polypropylene and polyolefin chain, and the thermoplastic resin composition according to the present invention has significantly improved low-temperature and room temperature impact strength properties as well as high fluidity properties, and thus, may exhibit excellent molding processability.

公开(公告)号：US20220204747A1

公开(公告)日：2022-06-30

申请号：US17601577

申请日：2020-05-15

申请人： LG Chem, Ltd.

发明人： Hyun Mo Lee ,  Seok Pil Sa ,  Seul Ki Im ,  Ji Hyun Park ,  Yun Kon Kim ,  Ki Soo Lee ,  Eun Ji Shin

IPC分类号： C08L53/00 ,  C08F297/02

摘要： A polyolefin-polystyrene multi-block copolymer and a method of producing the same is disclosed herein. In some embodiments, the polyolefin-polystyrene multi-block copolymer has a first complex viscosity of 40,000 Pa·s to 350,000 Pa·s at a temperature of 160° C. and a first frequency of 0.5 rad/s, and has a second complex viscosity of 900 Pa·s to 3,500 Pa·s at a temperature of 160° C. and a second frequency of 125 rad/s. The polyolefin-polystyrene multi-block copolymer has a structure in which polystyrene chains are attached to both ends of a polyolefin chain.

公开(公告)号：US20220195101A1

公开(公告)日：2022-06-23

申请号：US17602048

申请日：2020-05-15

申请人： LG Chem, Ltd.

发明人： Ji Hyun Park ,  Dae Woong Lee ,  Sung Hyun Park ,  Seok Pil Sa ,  Seul Ki Im ,  Hyun Mo Lee ,  Yun Kon Kim ,  Ki Soo Lee ,  Myung Han Lee ,  Eun Ji Shin

IPC分类号： C08F297/02 ,  C08F10/14 ,  C08F12/08 ,  C08F2/38

摘要： A polyolefin-polystyrene multi-block copolymer and method of making the same is disclosed herein. In some embodiments, a polyolefin-polystyrene multi-block copolymer having a ratio of a loss modulus (E″) to a storage modulus (E′) satisfying the following conditions (a) and (b) over a temperature range of −80° C. to 40° C., wherein the ratio is represented by a loss tangent (tan δ) value and is obtained by dynamic mechanical analysis (DMA), (a) a maximum of the tan δ value in a peak present in the temperature range is 0.20 to 0.35, and (b) a half-width of the peak ranges from 32.0° C. to 50.0° C. The polyolefin-polystyrene multi-block copolymer has a structure in which polystyrene chains are attached to both ends of a polyolefin chain.