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公开(公告)号：US20200339790A1
公开(公告)日：2020-10-29
申请号：US16956149
申请日：2018-12-21
Applicant: LG Chem, Ltd.
Inventor： Joongsoo Kim , Hyuck Ju Kwon , Yi Young Choi , Ki Soo Lee , Jongsang Park , Daesik Hong , Ye Jin Lee , Jinyoung Kwak
IPC: C08L23/08 , C08F210/16 , C08F4/6592 , C08F4/646
Abstract: Provided is an ethylene/1-butene copolymer having excellent processability and stress cracking resistance. The ethylene/1-butene copolymer according to the present invention may be applied to a high-pressure resistant heating pipe, a PE-RT pipe, a large diameter pipe, etc.
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公开(公告)号：US11225568B2
公开(公告)日：2022-01-18
申请号：US16635239
申请日：2018-12-06
Applicant: LG Chem, Ltd.
Inventor： Jongsang Park , Ki Soo Lee , Eun Kyoung Song , Daesik Hong , Ye Jin Lee , Joongsoo Kim , Eunyoung Shin , Youngsuk You , Jinyoung Kwak
IPC: C08F210/16 , C08F110/02 , C08F4/76 , C08F4/64 , C08L23/08 , C08F4/649 , C08F4/6592 , C08F210/02 , C08F210/04 , C08F210/14
Abstract: The present invention relates to a polyethylene copolymer which has excellent processability and long-term durability, and thus is useful for hollow molding of a pipe or the like.
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公开(公告)号：US10774160B2
公开(公告)日：2020-09-15
申请号：US15748798
申请日：2017-02-06
Applicant: LG CHEM, LTD.
Inventor： Ye Jin Lee , Yi Young Choi , Ki Soo Lee , Se Young Kim , Sung Min Lee , Chang Woan Han , Soon Ho Sun
IPC: C08F4/653 , C08F4/6592 , C08F10/02 , C08F110/02 , C08L23/08 , B01J31/22 , C08F4/02 , C08F4/659
Abstract: The present invention relates to a supported hybrid catalyst system for ethylene slurry polymerization and a method for preparing ethylene polymer therewith. The supported hybrid catalyst system according to the present invention may exhibit high activity during ethylene slurry polymerization, and enables preparation of an ethylene polymer having a narrow molecular weight distribution but excellent processability.
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4.发明授权公开(公告)号：US11384183B2
公开(公告)日：2022-07-12
申请号：US17043194
申请日：2020-01-15
Applicant: LG Chem, Ltd.
Inventor： Ye Jin Lee , Eun Kyoung Song , Daesik Hong , Hye Kyung Lee , Joongsoo Kim , Eunyoung Shin , Jinyoung Kwak
IPC: C08F4/653 , C08F4/6592 , C08F210/16 , C08L23/08 , C07F17/00 , C08F4/659
Abstract: A catalyst composition, a method from preparing an olefin polymer using the same, and an olefin polymer prepared from the same are disclosed herein. In some embodiments, a catalyst composition includes a first metallocene compound represented by the Chemical Formula 1, a second metallocene compound represented by the Chemical Formula 2, and a support. The catalyst composition can exhibit high activity in an olefin polymerization reaction and thus contribute to reducing catalyst costs, and can also exhibit high copolymerizability which can secure excellent processability and long-term physical properties, and thus, is suitable for providing polymers for pipes.
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公开(公告)号：US10962522B2
公开(公告)日：2021-03-30
申请号：US15768968
申请日：2017-10-12
Applicant: LG Chem, Ltd.
Inventor： Yoon Ki Hong , Hyuck Ju Kwon , Eun Kyoung Song , Dae Sik Hong , Ye Jin Lee , Joong Soo Kim , Eun Young Shin , Young Suk You , Ki Soo Lee
Abstract: The present invention relates to a method for predicting the physical properties of polymers. More specifically, the present invention relates to a method for predicting the processability of polymers using a molecular weight distribution curve.
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Patent Agency Ranking
公开(公告)号：US11472949B2
公开(公告)日：2022-10-18
申请号：US16956149
申请日：2018-12-21
Applicant: LG Chem, Ltd.
Inventor： Joongsoo Kim , Hyuck Ju Kwon , Yi Young Choi , Ki Soo Lee , Jongsang Park , Daesik Hong , Ye Jin Lee , Jinyoung Kwak
IPC: C08L23/08 , C08F4/653 , C08F4/6592 , C08F210/16 , C08F4/646
Abstract: Provided is an ethylene/1-butene copolymer having excellent processability and stress cracking resistance. The ethylene/1-butene copolymer according to the present invention may be applied to a high-pressure resistant heating pipe, a PE-RT pipe, a large diameter pipe, etc.
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公开(公告)号：US11072670B2
公开(公告)日：2021-07-27
申请号：US16765352
申请日：2018-11-28
Applicant: LG Chem, Ltd.
Inventor： Ye Jin Lee , Hye Kyung Lee , Eun Kyoung Song , Daesik Hong , Byung Seok Kim , Eunyoung Shin , Jinyoung Kwak
IPC: C08F110/02 , C08F210/16 , C08F210/14
Abstract: A catalyst composition and a method for preparing an olefin polymer by using the same are provided herein. In some embodiments, a catalyst composition includes a transition metal compound having a compound (A) represented by Chemical Formula 1 and a compound (B) represented by Chemical Formula 2 present in a molar ratio of 1.6:1 to 18. The catalyst composition has high activity in an olefin polymerization reaction and can contribute to a reduction of catalyst cost. The catalyst composition aides in high copolymerizability of olefin monomers, and the produced olefin polymers can exhibit excellent processability and long-term physical properties, suitable for a pipe.
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8.发明申请公开(公告)号：US20210054120A1
公开(公告)日：2021-02-25
申请号：US17043194
申请日：2020-01-15
Applicant: LG Chem, Ltd.
Inventor： Ye Jin Lee , Eun Kyoung Song , Daesik Hong , Hye Kyung Lee , Joongsoo Kim , Eunyoung Shin , Jinyoung Kwak
IPC: C08F210/16 , C07F17/00
Abstract: A catalyst composition, a method from preparing an olefin polymer using the same, and an olefin polymer prepared from the same are disclosed herein. In some embodiments, a catalyst composition includes a first metallocene compound represented by the Chemical Formula 1, a second metallocene compound represented by the Chemical Formula 2, and a support. The catalyst composition can exhibit high activity in an olefin polymerization reaction and thus contribute to reducing catalyst costs, and can also exhibit high copolymerizability which can secure excellent processability and long-term physical properties, and thus, is suitable for providing polymers for pipes.
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公开(公告)号：US20210032449A1
公开(公告)日：2021-02-04
申请号：US16635239
申请日：2018-12-06
Applicant: LG Chem, Ltd.
Inventor： Jongsang Park , Ki Soo Lee , Eun Kyoung Song , Daesik Hong , Ye Jin Lee , Joongsoo Kim , Eunyoung Shin , Youngsuk You , Jinyoung Kwak
IPC: C08L23/08 , C08F210/02 , C08F210/04 , C08F210/14 , C08F210/16 , C08F4/649 , C08F4/6592
Abstract: The present invention relates to a polyethylene copolymer which has excellent processability and long-term durability, and thus is useful for hollow molding of a pipe or the like.
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公开(公告)号：US10323110B2
公开(公告)日：2019-06-18
申请号：US15501415
申请日：2016-04-15
Applicant: LG CHEM, LTD.
Inventor： Soon Ho Sun , Yi Young Choi , Ki Soo Lee , Eun Kyoung Song , Yu Taek Sung , Ye Jin Lee , Chang Woan Han , Sol Cho
IPC: C08F210/08 , C08F210/16 , C08F4/6592 , C08L23/08 , C08F4/659
Abstract: The present invention relates to an ethylene/alpha-olefin copolymer having excellent processability. The ethylene/alpha-olefin copolymer according to the present invention has excellent processability and is therefore suitable for producing products by an injection molding method.
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