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公开(公告)号：US20240294680A1
公开(公告)日：2024-09-05
申请号：US18646039
申请日：2024-04-25
Applicant: LG Chem, Ltd.
Inventor： Cheolhwan Jeong , Si Jung Lee , Sun Mi Kim , Ue Ryung Seo , Yi Young Choi , Bog Ki Hong
IPC: C08F110/02 , C08F4/02 , C08F4/6592 , C08F8/20
CPC classification number: C08F110/02 , C08F4/02 , C08F4/65922 , C08F8/20 , C08F2420/00
Abstract: Provided are a polyethylene capable of improving tensile strength while maintaining excellent processability and Mooney viscosity characteristics when preparing a chlorinated polyethylene compound by implementing a molecular structure having a low content of low molecular weight and a high content of high molecular weight, and a chlorinated polyethylene prepared using the same.
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公开(公告)号：US11993665B2
公开(公告)日：2024-05-28
申请号：US17294743
申请日：2020-09-25
Applicant: LG Chem, Ltd.
Inventor： Sun Mi Kim , Ue Ryung Seo , Bog Ki Hong , Eun Kyoung Song , Daesik Hong , Si Jung Lee , Cheolhwan Jeong , Kiju Um
IPC: C08F110/02 , C08F4/02 , C08F4/6592 , C08F8/20
CPC classification number: C08F110/02 , C08F4/02 , C08F4/65922 , C08F8/20 , C08F2420/00
Abstract: Provided are a hybrid supported catalyst which includes two or more kinds of transition metal compounds having the following Chemical Formulas 1 and 2, thereby preparing a polyolefin, particularly, a high-density polyethylene having a molecular structure which is optimized to improve tensile strength of a chlorinated polyolefin compound, and a method of preparing a polyolefin using the same:
wherein all the variables are described herein.-
公开(公告)号：US20210230323A1
公开(公告)日：2021-07-29
申请号：US17052724
申请日：2019-12-10
Applicant: LG Chem, Ltd.
Inventor： Si Jung Lee , Sun Mi Kim , Cheolhwan Jeong , Yi Young Choi , Bog Ki Hong , Sunghyun Park
IPC: C08F110/02 , C08L23/28
Abstract: The polyethylene according to the present disclosure has a short relaxation time and a uniform particle size, thereby preparing a chlorinated polyethylene excellent in chlorination productivity and glass transition temperature by reacting with chlorine. And, a PVC composition with improved impact strength may also be prepared by including the same.
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公开(公告)号：US20210061930A1
公开(公告)日：2021-03-04
申请号：US16957925
申请日：2019-01-09
Applicant: LG Chem, Ltd.
Inventor： Bog Ki Hong , Jin Young Park , Si Jung Lee , Yi Young Choi , Soung Hun Yoo , Sunghyun Park , Chang Woan Han , Sun Mi Kim
IPC: C08F110/02 , C08L23/28 , C08L27/06 , C08F2/30 , C08F8/22 , C08F4/52 , C08F4/642 , C08F4/649 , C08F4/659 , C08F4/6592
Abstract: The present disclosure relates to a method for preparing a polyolefin using a supported hybrid metallocene catalyst. According to the present disclosure, a polyolefin having a narrow molecular weight distribution can be prepared very effectively by introducing a cocatalyst in an optimum conent in the presence of a supported hybrid metallocene catalyst containing two or more metallocene compounds having a specific chemical structure. The polyolefin prepared according to the present disclosure exhibits excellent uniformity in chlorine distribution in polyolefin during chlorination, thereby significantly improving elongation of the chlorinated polyolefin, compatibility with PVC and impact reinforcing performance. Thus, it exhibits excellent chemical resistance, weather resistance, flame retardancy, processability and impact strength reinforcing effect, and can be suitably applied as an impact reinforcing agent for PVC pipes and window profiles.
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公开(公告)号：US10704997B2
公开(公告)日：2020-07-07
申请号：US15749870
申请日：2017-03-09
Applicant: LG CHEM, LTD.
Inventor： Bog Ki Hong , Sung Hyun Park , Hyun Sup Lee , Yi Young Choi , Myung Han Lee , Soon Ho Sun
Abstract: The present invention relates to a method for evaluating the properties of a plastic resin molded product, more specifically to a novel method for evaluating the properties of a plastic resin molded product that can exactly derive impact resistance of practically prepared molded products, using the property measurement values by the existing ASTM.
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Patent Agency Ranking
公开(公告)号：US12006378B2
公开(公告)日：2024-06-11
申请号：US17294896
申请日：2020-09-25
Applicant: LG Chem, Ltd.
Inventor： Cheolhwan Jeong , Si Jung Lee , Sun Mi Kim , Ue Ryung Seo , Yi Young Choi , Bog Ki Hong
IPC: C08F110/02 , C08F4/02 , C08F4/6592 , C08F8/20
CPC classification number: C08F110/02 , C08F4/02 , C08F4/65922 , C08F8/20 , C08F2420/00
Abstract: There are provided a polyethylene capable of improving tensile strength while maintaining excellent processability and Mooney viscosity characteristics when preparing a chlorinated polyethylene compound by implementing a molecular structure having a low content of low molecular weight and a high content of high molecular weight, and a chlorinated polyethylene prepared using the same.
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公开(公告)号：US11560441B2
公开(公告)日：2023-01-24
申请号：US16957925
申请日：2019-01-09
Applicant: LG Chem, Ltd.
Inventor： Bog Ki Hong , Jin Young Park , Si Jung Lee , Yi Young Choi , Soung Hun Yoo , Sunghyun Park , Chang Woan Han , Sun Mi Kim
IPC: C08F4/653 , C08F4/6592 , C08F110/02 , C08L23/06 , C08F2/30 , C08F4/52 , C08F4/642 , C08F4/649 , C08F4/659 , C08F8/22 , C08L23/28 , C08L27/06
Abstract: The present disclosure relates to a method for preparing a polyolefin using a supported hybrid metallocene catalyst. According to the present disclosure, a polyolefin having a narrow molecular weight distribution can be prepared very effectively by introducing a cocatalyst in an optimum content in the presence of a supported hybrid metallocene catalyst containing two or more metallocene compounds having a specific chemical structure. The polyolefin prepared according to the present disclosure exhibits excellent uniformity in chlorine distribution in polyolefin during chlorination, thereby significantly improving elongation of the chlorinated polyolefin, compatibility with PVC and impact reinforcing performance. Thus, it exhibits excellent chemical resistance, weather resistance, flame retardancy, processability and impact strength reinforcing effect, and can be suitably applied as an impact reinforcing agent for PVC pipes and window profiles.
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公开(公告)号：US20210163640A1
公开(公告)日：2021-06-03
申请号：US17048418
申请日：2019-12-10
Applicant: LG Chem, Ltd.
Inventor： Si Jung Lee , Bog Ki Hong , Sunghyun Park , Sun Mi Kim , Yi Young Choi , Cheolhwan Jeong , Jinseok Lee
IPC: C08F110/02 , C08F4/659 , C08F4/6592 , C08F8/22 , C08L27/06
Abstract: The polyethylene according to the present disclosure has a molecular structure having a narrow particle distribution and a low content of ultra-high molecular weight, so that a chlorinated polyethylene having excellent chlorination productivity and thermal stability may be prepared by reacting the polyethylene with chlorine. And, a PVC composition including the same with improved impact strength may also be prepared.
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公开(公告)号：US10793651B2
公开(公告)日：2020-10-06
申请号：US16088177
申请日：2017-11-06
Applicant: LG Chem, Ltd.
Inventor： Bog Ki Hong , Kyung Jin Cho , Chang Woan Han , Soon Ho Sun , Sun Mi Kim , Yi Young Choi , Ki Soo Lee
IPC: C08F10/02 , C08F4/6592
Abstract: The present invention relates to polyethylene resin having excellent impact strength, and more specifically, to polyethylene resin exhibiting excellent impact strength and flexural strength, when prepared into a molded product.
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公开(公告)号：US10385146B2
公开(公告)日：2019-08-20
申请号：US15557775
申请日：2016-06-03
Applicant: LG CHEM, LTD.
Inventor： Kyung Jin Cho , Ki Soo Lee , Sung Min Lee , Bog Ki Hong , Min Seok Cho , Se Young Kim , Chang Woan Han
Abstract: The present disclosure relates to a novel metallocene compound. The metallocene compound according to the present disclosure may be used for the preparation of an olefin-based polymer, may have excellent ability, and may produce an olefin-based polymer having a relatively high molecular weight compared with the case of using a catalyst composition having a similar structure due to the structural and electrical steric hindrance effect.
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