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公开(公告)号：US12037426B2
公开(公告)日：2024-07-16
申请号：US17312230
申请日：2019-11-15
Applicant: LG Chem, Ltd.
Inventor： In Sung Park , Sang Eun Park , Eun Jung Lee , Hyun Jin Ju , Tae Su Kim , Choong Hoon Lee , Jin Sam Gong , Jung Ho Jun , Rae Keun Gwak
IPC: C08F210/16 , C07F17/00 , C08F4/6592
CPC classification number: C08F210/16 , C07F17/00 , C08F4/6592
Abstract: The present invention relates to an olefin-based copolymer of which soluble fraction at a low temperature has a high weight average molecular weight, and which has high flowability and improved physical properties of hardness, flexural strength, tearing strength, etc., and a method for preparing the same.
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32.发明公开公开(公告)号：US20240101738A1
公开(公告)日：2024-03-28
申请号：US18273144
申请日：2022-10-28
Applicant: LG Chem, Ltd.
Inventor： Jin Sam Gong , Eun Jung Lee , Jeong Yon Jeong , Young Woo Lee , Jung Kyu Lee , Si Jung Lee , Hye Ji Lee
IPC: C08F210/16 , C08F4/659 , C08F4/6592
CPC classification number: C08F210/16 , C08F4/65908 , C08F4/6592
Abstract: An ethylene/alpha-olefin copolymer having excellent physical properties showing reduced immersion time of a crosslinking agent and a high degree of crosslinking, and a composition for an encapsulant film, comprising the same, is described herein.
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公开(公告)号：US11718693B2
公开(公告)日：2023-08-08
申请号：US17045658
申请日：2019-05-03
Applicant: LG Chem, Ltd.
Inventor： Rae Keun Gwak , Seung Hwan Jung , Jin Sam Gong , Jung Ho Jun , Choong Hoon Lee , Eun Jung Lee , Hyun Jin Ju , In Sung Park , Sang Eun Park
IPC: C08F210/16 , C09J123/08
CPC classification number: C08F210/16 , C09J123/0815 , C08F2500/17 , C08F2500/18 , C09J2301/304
Abstract: The present invention provides an ethylene/alpha-olefin copolymer having narrow molecular weight distribution together with a low density and an ultra low molecular weight, having minimized number of unsaturated functional groups, and having uniform crystallinity, thereby showing excellent physical properties, and a method for preparing the same.
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公开(公告)号：US20230002597A1
公开(公告)日：2023-01-05
申请号：US17779337
申请日：2020-12-08
Applicant: LG Chem, Ltd.
Inventor： Jung Ho Jun , Eun Jung Lee , Jin Sam Gong , Young Woo Lee , Jin Kuk Lee
IPC: C08L23/08 , C08J5/18 , C08F210/16 , C08J3/24 , H01L31/048
Abstract: The present invention relates to a composition for an encapsulant film including an ethylene/alpha-olefin copolymer having high volume resistance and light transmittance, and an encapsulant film using the same.
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公开(公告)号：US11505631B2
公开(公告)日：2022-11-22
申请号：US17045694
申请日：2019-05-03
Applicant: LG Chem, Ltd.
Inventor： Jin Sam Gong , Seung Hwan Jung , Jung Ho Jun , Rae Keun Gwak , Choong Hoon Lee , Eun Jung Lee , Hyun Jin Ju , In Sung Park , Sang Eun Park
IPC: C08F210/16 , C09J123/16 , C09J123/08
Abstract: The present invention provides an ethylene/alpha-olefin copolymer having narrow molecular weight distribution together with a low density and an ultra low molecular weight, and minimized number of unsaturated functional groups, and in which a comonomer is uniformly present to show excellent physical properties, and a method for preparing the same.
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Patent Agency Ranking
公开(公告)号：US20220185920A1
公开(公告)日：2022-06-16
申请号：US17603210
申请日：2020-08-27
Applicant: LG Chem, Ltd.
Inventor： Sang Eun Park , In Sung Park , Eun Jung Lee , Hyun Jin Ju , Tae Su Kim , Choong Hoon Lee , Jin Sam Gong , Jung Ho Jun , Rae Keun Gwak
IPC: C08F110/06 , C08F4/6592 , C08L23/08
Abstract: The present invention relates to a polypropylene-based composite material having improved physical properties including impact strength at low temperature and at room temperature, flexural strength, flexural modulus, etc., and a method for preparing the same.
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公开(公告)号：US20210230326A1
公开(公告)日：2021-07-29
申请号：US17050089
申请日：2019-05-03
Applicant: LG Chem, Ltd.
Inventor： Sang Eun Park , Eun Jung Lee , Hyun Jin Ju , In Sung Park , Choong Hoon Lee , Jin Sam Gong , Jung Ho Jun , Rae Keun Gwak
IPC: C08F210/16
Abstract: An olefin-based copolymer and method of making the same are disclosed herein. In some embodiments, the olefin-based copolymer includes a repeating unit derived from an alpha-olefin, wherein the alphas-olefin is present in the copolymer at 15 wt % to 45 wt %, wherein the copolymer has a density (d) of 0.85 to 0.89 g/cc, a melt index (MI), measured at 190° C. and 2.16 kg load, of 15 g/10 min to 100 g/10 min, and a hardness defined by Equation 1. The olefin-based copolymer has improved hardness and is highly flowable, and may show improved physical properties of tensile strength, elongation rate and flexural modulus.
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公开(公告)号：US20210062050A1
公开(公告)日：2021-03-04
申请号：US16956875
申请日：2019-05-03
Applicant: LG Chem, Ltd.
Inventor： Rae Keun Gwak , Eun Jung Lee , Jin Sam Gong , Jung Ho Jun , Tae Su Kim
IPC: C09J123/08 , C09J11/08 , C08F210/16 , C08F2/34 , C08F4/6592
Abstract: The present invention provides an adhesive composition including an ethylene/alpha-olefin copolymer; and a tackifier, wherein the ethylene/alpha-olefin copolymer has narrow molecular weight distribution together with a low density and an ultra low molecular weight, minimized number of unsaturated functional groups, uniform crystallinity, thereby showing excellent physical properties.
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公开(公告)号：US10800863B2
公开(公告)日：2020-10-13
申请号：US15744429
申请日：2016-10-20
Applicant: LG Chem, Ltd.
Inventor： Dong Eun Kim , A Rim Kim , Jin Sam Gong , Choong Hoon Lee , Seung Hwan Jung
IPC: C08F4/76 , C08F210/16 , C07F9/535 , C07F17/00 , B01J31/02 , C01G23/00 , C08F4/659 , C08F2/06 , C08L23/06 , C08L23/12 , C08L23/18 , C08L47/00
Abstract: The present invention relates to a transition metal complex that exhibits high activity in the polymerization reaction of olefin monomers and improved copolymerization activity, thus enabling the preparation of a low density, high molecular weight polyolefin, a catalyst composition including the same, and a method for preparing a polyolefin using the composition.
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40.发明申请公开(公告)号：US20190233553A1
公开(公告)日：2019-08-01
申请号：US16311509
申请日：2017-11-09
Applicant: LG Chem, Ltd.
Inventor： Dong Eun Kim , Yun Jin Lee , Jung Ho Jun , Seung Hwan Jung , Jin Sam Gong , Choong Hoon Lee
CPC classification number: C08F10/02 , C07D333/76 , C07F7/28 , C07F17/00 , C08F2/38 , C08F4/64 , C08F4/642 , C08F2420/06
Abstract: The present invention relates to a novel ligand compound, a transition metal compound and a catalyst composition including the same. The novel ligand compound and the transition metal compound of the present invention may be useful as a catalyst of polymerization reaction for preparing an olefin-based polymer having a low density. In addition, an olefin polymer which is polymerized using the catalyst composition including the transition metal compound may be used for the manufacture of a product having low melt index (MI) and high molecular weight.
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