公开(公告)号：US10766985B2

公开(公告)日：2020-09-08

申请号：US15760986

申请日：2017-02-22

Applicant: LG CHEM, LTD.

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

IPC: C08L23/08 ,  C08F210/16 ,  C08F4/653 ,  C08F4/6592 ,  C08F210/02 ,  C08F4/659

Abstract: The present invention relates to an olefin polymer and a preparation method thereof. The olefin polymer exhibits excellent mechanical strength and high processability, and thus is expected to be utilized as a material for various products. Particularly, the olefin polymer can be stably produced into films by a melt-blowing process and thus is expected to be usefully used as a material for products prepared by a melt-blowing process.

公开(公告)号：US11746168B2

公开(公告)日：2023-09-05

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

CPC classification number: C08F210/16 ,  C08F4/65904 ,  C08F4/65916 ,  C08F4/65925 ,  C08F4/65927 ,  C08F210/14 ,  C08J5/18 ,  C08L23/0815 ,  C08F4/65912 ,  C08F2500/03 ,  C08F2500/08 ,  C08F2500/09 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/26 ,  C08J2323/08 ,  C08F210/16 ,  C08F4/65904 ,  C08F210/16 ,  C08F4/65925 ,  C08F210/16 ,  C08F4/65927 ,  C08F210/16 ,  C08F210/14 ,  C08F2500/03 ,  C08F2500/08 ,  C08F2500/09 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/26

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：US20200010589A1

公开(公告)日：2020-01-09

申请号：US16090763

申请日：2018-01-25

Applicant: LG Chem, Ltd.

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

IPC: C08F210/16

Abstract: The present disclosure provides a supported hybrid catalyst which facilitates the preparation of polyolefins having improved bubble stability and exhibiting excellent processability for a blown film while maintaining high transparent haze and improved melt strength, and a method for preparing the same.

公开(公告)号：US20190161590A1

公开(公告)日：2019-05-30

申请号：US16318264

申请日：2017-07-28

Applicant: LG Chem, Ltd.

Inventor： Oh Joo Kwon ,  Sol Cho ,  Ki Soo Lee ,  Chang-Hwan Jang ,  Dae Sik Hong ,  Sung Hyun Park ,  Eun Ji Shin ,  Hyun Jee Kwon ,  Sung Ho Park

IPC: C08J5/18 ,  C08F210/16 ,  C08F4/64 ,  B01J31/38

Abstract: The present disclosure provides a polyolefin-based film including an olefin polymer which is controlled in the content of the branched polymer structure in the polymer and the weight average molecular weight of the main chain in the structure to exhibit excellent processability and transparency. Therefore, the polyolefin-based film not only exhibits high transparency independent of processing conditions, but also reduces the increase in film haze even when the thickness of the film increases.

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：US10508164B2

公开(公告)日：2019-12-17

申请号：US15546474

申请日：2016-12-23

Applicant: LG Chem, Ltd.

Inventor： Oh Joo Kwon ,  Sol Cho ,  Ki Soo Lee ,  Heon Yong Kwon ,  Dae Sik Hong ,  Sung Hyun Park ,  Myung Han Lee

IPC: C08F210/02 ,  C08F210/16

Abstract: The low density polyethylene copolymer according to the present invention is characterized in that as LCB (Long Chain Branch) is introduced into LLDPE, the melt strength is remarkably high even without blending with LDPE, and thus it can be advantageously applied to blown film processing and the like.

公开(公告)号：US20180306694A1

公开(公告)日：2018-10-25

申请号：US15767519

申请日：2017-03-30

Applicant: LG Chem, Ltd.

Inventor： Sung Hyun Park ,  Chae Gyu Lee ,  Ye Hoon Im ,  Yu Taek Sung ,  Myung Han Lee ,  Oh Joo Kwon ,  Heon Yong Kwon ,  Dae Sik Hong

IPC: G01N11/00 ,  G01N33/44

CPC classification number: G01N11/00 ,  G01N24/00 ,  G01N33/44 ,  G01N33/442

Abstract: The present application relates to a method for quantitative analysis of a polymer structure. Specifically, the method may be carried out through steps of measuring rheological properties and/or molecular weight distribution of the arbitrarily selected polymer, setting a random value for the selected polymer and then predicting the rheological property and/or the molecular weight distribution of the polymer from the random value, and comparing the measured value with the predicted value to determine the value of the structural parameter of the polymer.

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：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：US10155830B2

公开(公告)日：2018-12-18

申请号：US15106708

申请日：2015-12-07

Applicant: LG CHEM, LTD.

Inventor： Joong Soo Kim ,  Soon Ho Sun ,  Oh Joo Kwon ,  Yi Young Choi ,  Ki Soo Lee

IPC: C08L23/08 ,  C08F4/6592 ,  C08F210/16 ,  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 low complex viscosity at high shear rate and has excellent processability, and thus it could be applied to the processing of a large diameter pipe, a complex pipe or the like.