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公开(公告)号:US11542351B2
公开(公告)日:2023-01-03
申请号:US17268146
申请日:2019-12-20
Applicant: LG Chem, Ltd.
Inventor: Jeongkyu Lee , Sung Min Lee , Hyojoon Lee , Chang Hwan Jang , Sung Ho Park , Seul Ki Im , Jinyoung Lee , Sung Joon Oh , Seyoung Kim , Jisoo Song
IPC: C08L23/08 , C08F4/653 , C08F4/6592 , C08F210/16 , C08F4/659
Abstract: The present invention relates to polyolefin. More specifically, the present invention relates to polyolefin having excellent dart drop impact strength, and exhibiting improved transparency, and such polyolefin has a density of 0.915 g/cm3 to 0.930 g/cm3 measured according to ASTM D1505; and satisfies the following requirements (provided that S1+S2+S3=1), when measuring the relative content of peak area according to melting temperature (Tm) using SSA (Successive Self-nucleation and Annealing) analysis: the content(S1) of peak area at Tm less than 100° C. is 0.33 to 0.35; the content(S2) of peak area at Tm of 100° C. or more and 120° C. or less is 0.52 to 0.56; and the content(S3) of peak area at Tm greater than 120° C. is 0.10 to 0.14.
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公开(公告)号:US20210371558A1
公开(公告)日:2021-12-02
申请号:US17278005
申请日:2019-12-20
Applicant: LG Chem, Ltd.
Inventor: Sung Min Lee , Jeongkyu Lee , Hyojoon Lee , Seyoung Kim , Sung Ho Park , Seul Ki Im , Jinyoung Lee , Chang Hwan Jang , Daesik Hong , Jisoo Song
IPC: C08F210/16
Abstract: The present invention relates to polyolefin. More specifically, the present invention relate s to polyolefin having excellent dart drop impact strength, and exhibiting improved transparency and satisfying one of the following 1)˜4): 1) when density is 0.9165 g/cm3 or more and less than 0.9175 g/cm3, the content of SCB (Short Chain Branch) is 9.5 to 10.5 wt %, 2) when density is 0.9175 g/cm3 or more and less than 0.9185 g/cm3, the content of SCB (Short Chain Branch) is 9.0 to 10.0 wt %, 3) when density is 0.9185 g/cm3 or more and less than 0.9195 g/cm3, the content of SCB (Short Chain Branch) is 8.5 to 9.5 wt %, 4) when density is 0.9195 g/cm3 or more and less than 0.9205 g/cm3, the content of SCB (Short Chain Branch) is 7.5 to 8.5 wt %, wherein the density is measured according to ASTM D1505.
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公开(公告)号:US20210332169A1
公开(公告)日:2021-10-28
申请号:US17268146
申请日:2019-12-20
Applicant: LG Chem, Ltd.
Inventor: Jeongkyu Lee , Sung Min Lee , Hyojoon Lee , Chang Hwan Jang , Sung Ho Park , Seul Ki Im , Jinyoung Lee , Sung Joon Oh , Seyoung Kim , Jisoo Song
IPC: C08F210/16 , C08F4/659 , C08F4/6592 , C08L23/08
Abstract: The present invention relates to polyolefin. More specifically, the present invention relates to polyolefin having excellent dart drop impact strength, and exhibiting improved transparency, and such polyolefin has a density of 0.915 g/cm3 to 0.930 g/cm3 measured according to ASTM D1505; and satisfies the following requirements (provided that S1+S2+S3=1), when measuring the relative content of peak area according to melting temperature (Tm) using SSA (Successive Self-nucleation and Annealing) analysis: the content(S1) of peak area at Tm less than 100° C. is 0.33 to 0.35; the content(S2) of peak area at Tm of 100° C. or more and 120° C. or less is 0.52 to 0.56; and the content(S3) of peak area at Tm greater than 120° C. is 0.10 to 0.14.
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公开(公告)号:US12098231B2
公开(公告)日:2024-09-24
申请号:US17778110
申请日:2020-11-20
Applicant: LG Chem, Ltd.
Inventor: Sung Min Lee , Jeongkyu Lee , Jinyoung Lee , Sung Ho Park , Seyoung Kim , Ilhak Bae
IPC: C08F297/08 , C08F4/02 , C08F4/642 , C08F210/10
CPC classification number: C08F297/083 , C08F4/02 , C08F4/6428 , C08F2420/07
Abstract: This invention relates to polyolefin. More specifically, this invention relates to polyolefin that has small copolymer content, but exhibits excellent mechanical properties.
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公开(公告)号:US20220213303A1
公开(公告)日:2022-07-07
申请号:US17602495
申请日:2020-06-11
Applicant: LG Chem, Ltd.
Inventor: Byung Seok Kim , Insun Lee , Seok Hwan Kim , Jung Won Lee , Donghyeon Gwon , Seyoung Kim , Heekwang Park , Jihwa Ye
IPC: C08L23/16 , C08F4/6592 , C08F210/06
Abstract: The present disclosure relates to a propylene-ethylene random copolymer for high transparency injection that has a low total volatile organic compound emission (TVOC), excellent processability, and maximizing ethylene content.
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公开(公告)号:US11370851B2
公开(公告)日:2022-06-28
申请号:US17251026
申请日:2019-06-13
Applicant: LG Chem, Ltd.
Inventor: Byung Seok Kim , Insun Lee , Seok Hwan Kim , Hye Kyung Lee , Sangjin Jeon , Seyoung Kim
IPC: C08F4/6592 , C08F110/06 , C07F17/00 , C08F4/52 , C08F4/642
Abstract: The present disclosure provides a novel transition metal compound which exhibits excellent catalytic activity and is useful in the preparation of a polypropylene having high impact strength, and a method for preparing a homo polypropylene using the same.
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公开(公告)号:US20220185916A1
公开(公告)日:2022-06-16
申请号:US17432205
申请日:2020-03-04
Applicant: LG Chem, Ltd.
Inventor: Byung Seok Kim , Insun Lee , Seok Hwan Kim , Jung Won Lee , Donghyeon Gwon , Sangjin Jeon , Seyoung Kim , Heekwang Park
IPC: C08F4/6592 , C08F4/659 , C08F2/38 , C08F110/06
Abstract: The present disclosure relates to a novel transition metal compound represented by the following Chemical Formula 1, which exhibits excellent catalytic activity for propylene polymerization, and is useful in the preparation of a polypropylene having a narrow molecular weight distribution and a high melting point, a catalyst composition including the same, and a method for preparing a polypropylene using the same, wherein M, X1, X2, and R1 to R8 are described herein.
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公开(公告)号:US20210395411A1
公开(公告)日:2021-12-23
申请号:US17282524
申请日:2019-12-20
Applicant: LG Chem, Ltd.
Inventor: Jinyoung Lee , Sung Min Lee , Jeongkyu Lee , Hyojoon Lee , Seyoung Kim , Sung Ho Park , Seul Ki Im , Seok Hwan Kim , Daesik Hong
IPC: C08F210/16
Abstract: The present invention relates to polyolefin. More specifically, the present invention relates to polyolefin having excellent dart drop impact strength, and exhibiting improved transparency, and such polyolefin has a density of 0.915 g/cm3 to 0.930 g/cm3 measured according to ASTM D1505; a nd has an ethylene sequence inhomogeneity(I) calculated by the following Equation 1 of 1.25 to 1.40, when analyzed by SSA(Successive Self-nucleation and Annealing): Inhomogeneity (I)=Lw/Ln [Equation 1] in the Equation 1, Lw is weighted average(unit: nm) of ESL(Ethylene sequence length), and Ln is arithmetic m ean(unit: nm) of ESL(Ethylene sequence length).
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公开(公告)号:US20210332075A1
公开(公告)日:2021-10-28
申请号:US17264593
申请日:2020-06-10
Applicant: LG Chem, Ltd.
Inventor: Insun Lee , Seok Hwan Kim , Byung Seok Kim , Donghyeon Gwon , Seyoung Kim
IPC: C07F17/00 , C08F110/06 , B01J31/22 , C08F4/16
Abstract: Provided are a novel transition metal compound of the following Chemical Formula 1 that exhibits excellent catalytic activity, allows formation of a macromonomer which is a polymer in which a double bond is formed at the end of a chain, and improves a melt strength characteristic when used in polymerizing polypropylene, and a method of preparing a polypropylene using the same. wherein A, M, R1 to R10, X1 and X2, Y1 and Y2 and m are described herein.
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公开(公告)号:US20210189025A1
公开(公告)日:2021-06-24
申请号:US17251026
申请日:2019-06-13
Applicant: LG Chem, Ltd.
Inventor: Byung Seok Kim , Insun Lee , Seok Hwan Kim , Hye Kyung Lee , Sangjin Jeon , Seyoung Kim
IPC: C08F4/6592 , C08F4/642 , C08F4/52 , C08F110/06 , C07F17/00
Abstract: The present disclosure provides a novel transition metal compound which exhibits excellent catalytic activity and is useful in the preparation of a polypropylene having high impact strength, and a method for preparing a homo polypropylene using the same.
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