公开(公告)号：US12221498B2

公开(公告)日：2025-02-11

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 ,  C08F210/18

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 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 mean (unit: nm) of ESL (Ethylene sequence length).

公开(公告)号：US11987655B2

公开(公告)日：2024-05-21

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

CPC classification number: C08F210/16 ,  C08F2500/10

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.

公开(公告)号：US11091571B2

公开(公告)日：2021-08-17

申请号：US16084066

申请日：2017-08-18

Applicant: LG Chem, Ltd.

Inventor： Sung Ho Park ,  Heon Yong Kwon ,  Hyun Jee Kwon ,  Jin Young Lee ,  Ki Soo Lee ,  Dae Sik Hong ,  Sol Cho ,  Oh Joo Kwon

IPC: C08F210/16 ,  C07F17/00

Abstract: The present invention provides a hybrid supported catalyst capable of easily preparing an olefin polymer capable of having improved melt strength even while having appropriate molecular weight distribution, and thus having improved bubble stability and exhibiting excellent blown film processability, and a method for preparing an olefin polymer using the same.

公开(公告)号：US10894843B2

公开(公告)日：2021-01-19

申请号：US16478692

申请日：2018-11-29

Applicant: LG Chem, Ltd.

Inventor： Seul Ki Im ,  Seungmi Lee ,  Ohjoo Kwon ,  Eunji Shin ,  Ki Soo Lee ,  Daesik Hong ,  Sung Ho Park ,  Youngsuk You ,  Jinyoung Lee

IPC: C08F110/02 ,  C08F10/02 ,  C08F210/16 ,  C08F10/04 ,  C08F4/646 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/14 ,  C08J5/18

Abstract: An olefin polymer capable of simultaneously satisfying excellent drop impact strength and transparency, a preparation method of the same, and a film using the same, can be provided. In an embodiment, an olefin polymer comprises a plurality of polymer chains, and satisfies the following conditions: i) each polymer chain of the plurality having an average number of short chain branches (SCBs) per 1000 carbon atoms of 20/1000C or more, wherein an SCB has C2 to C7 carbon atoms, ii) a molded film of the olefin polymer having a drop impact strength of 1500 g to 2400 g as measured in accordance with ASTM D1709A, wherein the molded film having a thickness of 100 μm, and iii) a molded film of the olefin polymer having a haze is 10% to 30% as measured in accordance with ASTM D1003, wherein the molded film having a thickness of 0.05 mm.

公开(公告)号：US10717793B2

公开(公告)日：2020-07-21

申请号：US16313640

申请日：2017-11-07

Applicant: LG Chem, Ltd.

Inventor： Sol Cho ,  Ki Soo Lee ,  Heon Yong Kwon ,  Sung Hyun Park ,  Myung Han Lee ,  Oh Joo Kwon ,  Seung Mi Lee ,  Eun Ji Shin ,  Hyun Jee Kwon ,  Sung Ho Park ,  Seul Ki Im ,  Jin Young Lee

IPC: C08L23/08 ,  C08F210/16 ,  C08F4/653 ,  C08J5/18 ,  C08F4/6592 ,  C08F4/659 ,  B29C48/10 ,  B29C48/00 ,  B29K23/00 ,  B29K105/00

Abstract: The present invention provides an olefin polymer in which LCB (long chain branch) is introduced into mLLDPE (metallocene linear low-density polyethylene) to control the storage modulus, whereby the olefin polymer has excellent bubble stability and processing load characteristics and exhibits excellent processability during preparation of a film, and further has excellent mechanical properties and transparency.

公开(公告)号：US10570221B2

公开(公告)日：2020-02-25

申请号：US15764758

申请日：2016-12-22

Applicant: LG Chem, Ltd.

Inventor： Young Suk You ,  Sung Ho Park ,  Ki Soo Lee ,  Heon Yong Kwon ,  Dae Sik Hong ,  Eun Young Shin ,  Hyun Jee Kwon ,  Jin Young Lee

IPC: C08F4/6592 ,  C08F110/02 ,  C08F10/00 ,  B01J31/22 ,  C08F2/34 ,  C08F10/02 ,  C08F10/04 ,  C08F10/14 ,  C08F210/16 ,  C08F4/10 ,  C08F4/12

Abstract: The present invention provides a metallocene supported catalyst that can prepare a polyolefin having excellent transparency even when processed into a film, as well as excellent processibility and mechanical properties, with high catalytic activity, and a method for preparing a polyolefin using the same.

公开(公告)号：US20180282442A1

公开(公告)日：2018-10-04

申请号：US15764758

申请日：2016-12-22

Applicant: LG Chem, Ltd.

Inventor： Young Suk You ,  Sung Ho Park ,  Ki Soo Lee ,  Heon Yong Kwon ,  Dae Sik Hong ,  Eun Young Shin ,  Hyun Jee Kwon ,  Jin Young Lee

IPC: C08F4/6592 ,  C08F2/34 ,  B01J31/22 ,  C08F10/02 ,  C08F10/04 ,  C08F10/14 ,  C08F210/16

Abstract: The present invention provides a metallocene supported catalyst that can prepare a polyolefin having excellent transparency even when processed into a film, as well as excellent processibility and mechanical properties, with high catalytic activity, and a method for preparing a polyolefin using the same.

公开(公告)号：US20180037675A1

公开(公告)日：2018-02-08

申请号：US15554907

申请日：2016-06-24

Applicant: LG Chem, Ltd.

Inventor： Suk Youn Kang ,  Hyo Jin Bae ,  Sung Ho Park ,  Jeong Heon Ahn ,  Ji Eun Kim ,  Kyoung Hwan Oh

IPC: C08F4/54 ,  C08K5/00 ,  C08F136/04 ,  B60C1/00 ,  C08F36/04 ,  C08F4/08 ,  C08F4/609 ,  C08L9/00 ,  C08K5/544 ,  C08F210/12

Abstract: The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. (X1)a—N—(X2)3-a  [Formula 1] In Formula 1, a, X1, and X2 are the same as defined in the disclosure.

公开(公告)号：US20220089797A1

公开(公告)日：2022-03-24

申请号：US17541434

申请日：2021-12-03

Applicant: LG Chem, Ltd.

Inventor： Oh Joo Kwon ,  Sol Cho ,  Seung Ki Park ,  Ki Soo Lee ,  Heon Yong Kwon ,  Dae Sik Hong ,  Sung Hyun Park ,  Sung Ho Park ,  Jin Young Lee

IPC: C08F210/16 ,  C08F4/659 ,  C08F4/6592 ,  C08F210/14 ,  C08J5/18 ,  C08L23/08

Abstract: The present disclosure provides an olefin polymer having excellent film processability and physical properties, and a preparation method of the same.

公开(公告)号：US10982026B2

公开(公告)日：2021-04-20

申请号：US16627540

申请日：2017-12-26

Applicant: LG Chem, Ltd.

Inventor： Suk Joon Yoo ,  Sung Ho Park ,  Soo Young Choi ,  Jeong Heon Ahn

IPC: C08F136/00 ,  C08F136/04 ,  C08F4/52 ,  C08F136/06 ,  C08F4/54 ,  C08F236/04 ,  C08F36/04 ,  C08F2/00

Abstract: A method of preparing a conjugated diene-based polymer by continuous polymerization using two or more reactors is provided. The method of preparing a conjugated diene-based polymer includes a conjugated diene-based polymer having excellent cis 1,4 bond content and linearity, by adjusting the ratio of a polymer and a monomer in each reactor and by adjusting the retention time in a second reactor and resolving the deterioration phenomenon of physical properties, while improving productivity by reducing the contamination of the reactors.