公开(公告)号：US20240262994A1

公开(公告)日：2024-08-08

申请号：US18561134

申请日：2022-11-25

Applicant: LG Chem, Ltd.

Inventor： Young Woo Lee ,  Jin Sam Gong ,  Jong Gil Kim ,  Sang Hyun Hong ,  Sang Wook Han ,  Eun Jung Lee

IPC: C08L23/08

CPC classification number: C08L23/0815 ,  C08L2203/206 ,  C08L2312/00

Abstract: A composition for an encapsulant film, comprising an ethylene/alpha-olefin copolymer, an encapsulant film and a solar cell module is disclosed.

公开(公告)号：US20240199828A1

公开(公告)日：2024-06-20

申请号：US18285514

申请日：2022-10-25

Applicant: LG Chem, Ltd.

Inventor： Jin Sam Gong ,  Eun Jung Lee ,  Sang Eun Park ,  Sang Hyun Hong ,  Jin Kuk Lee ,  Jong Gil Kim ,  Sang Wook Han

IPC: C08J5/18 ,  C08K5/5415 ,  C08K5/5425 ,  C08L23/08 ,  H01L31/048

CPC classification number: C08J5/18 ,  C08K5/5415 ,  C08K5/5425 ,  C08L23/0815 ,  H01L31/0481 ,  C08J2323/08 ,  C08L2203/162 ,  C08L2312/08

Abstract: A composition for an encapsulant film, comprising an ethylene/alpha-olefin copolymer, a crosslinking agent, a crosslinking auxiliary agent comprising a compound represented by the following Formula 1, and a silane coupling agent, an encapsulant film and a solar cell module thereof is described herein, and by using such composition, the immersion time of an ethylene/alpha-olefin copolymer may be reduced to improve the economic feasibility of the production process of an encapsulant film, and excellent degree of crosslinking is provided:




wherein R1 to R8 are described herein.

公开(公告)号：US11884801B2

公开(公告)日：2024-01-30

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 ,  C08F210/16 ,  C08J3/24 ,  C08J5/18 ,  H01L31/048

CPC classification number: C08L23/0815 ,  C08F210/16 ,  C08J3/24 ,  C08J5/18 ,  H01L31/0481 ,  C08F2810/20 ,  C08J2323/06 ,  C08L2203/16 ,  C08L2203/204 ,  C08L2312/00

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.

公开(公告)号：US11718737B2

公开(公告)日：2023-08-08

申请号：US16975480

申请日：2019-05-03

Applicant: LG Chem, Ltd.

Inventor： Jung Ho Jun ,  Seung Hwan Jung ,  Jin Sam Gong ,  Rae Keun Gwak ,  Choong Hoon Lee ,  Eun Jung Lee ,  Hyun Jin Ju ,  In Sung Park ,  Sang Eun Park

IPC: C08F210/16 ,  C08F210/02 ,  C08L23/08 ,  C08F2/38 ,  C08F4/649 ,  C08F4/6592 ,  C08F210/08 ,  C09J11/08 ,  C09J123/08

CPC classification number: C08L23/0815 ,  C08F2/38 ,  C08F4/6493 ,  C08F4/6495 ,  C08F4/6496 ,  C08F4/6498 ,  C08F4/6592 ,  C08F210/02 ,  C08F210/08 ,  C08F210/16 ,  C09J11/08 ,  C09J123/0815 ,  C08L2314/06

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, minimized number of unsaturated functional groups, and particularly a small amount of vinylidene among the unsaturated functional groups to show excellent physical properties, and a method for preparing the same.

公开(公告)号：US20220306780A1

公开(公告)日：2022-09-29

申请号：US17612388

申请日：2020-09-28

Applicant: LG Chem, Ltd.

Inventor： Tae Su Kim ,  In Sung Park ,  Sang Eun Park ,  Eun Jung Lee ,  Choong Hoon Lee ,  Jin Sam Gong ,  Jung Ho Jun ,  Rae Keun Gwak

IPC: C08F210/16 ,  C08F4/659 ,  C08F4/6592

Abstract: An olefin-based polymer satisfying conditions as follow: (1) a melt index (MI, 190° C., 2.16 kg load conditions) is from 0.1 g/10 min to 10.0 g/10 min, (2) a melting temperature when measured by differential scanning calorimetry (DSC) is 20° C. to 70° C., and (3) a high temperature melting peak is confirmed at 75° C. to 150° C. when measured by a differential scanning calorimetry precise measurement method (SSA), and a total enthalpy of fusion ΔH(75) of a corresponding region is 1.0 J/g or more. The olefin-based polymer according to the present invention is a low-density olefin-based polymer introducing a highly crystalline region and showing high mechanical rigidity.

公开(公告)号：US20220081501A1

公开(公告)日：2022-03-17

申请号：US17430909

申请日：2020-09-25

Applicant: LG Chem, Ltd.

Inventor： Young Woo Lee ,  Seul Ki Kim ,  Dae Woong Lee ,  Jin Kuk Lee ,  Eun Jung Lee ,  Jin Sam Gong ,  Jung Ho Jun ,  Jun Hyuk Lee

IPC: C08F210/16 ,  C08J5/18

Abstract: The present invention relates to an ethylene/alpha-olefin copolymer having a high weight average molecular weight and narrow molecular weight distribution, and at the same time, a reduced characteristic relaxation time, thereby showing excellent physical properties, and a method for preparing the same.
A resin composition having improved volume resistance and excellent light transmittance may be prepared by using such ethylene/alpha-olefin copolymer. Accordingly, the ethylene/alpha-olefin copolymer may be utilized in various uses in electrical and electronic industrial fields.

公开(公告)号：US20210163643A1

公开(公告)日：2021-06-03

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

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.

公开(公告)号：US20210155727A1

公开(公告)日：2021-05-27

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

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.

公开(公告)号：US20180194874A1

公开(公告)日：2018-07-12

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 ,  C01G23/00 ,  B01J31/02

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.

公开(公告)号：US20240352204A1

公开(公告)日：2024-10-24

申请号：US18580719

申请日：2023-05-16

Applicant: LG Chem, Ltd.

Inventor： Jin Sam Gong ,  Eun Jung Lee ,  Sang Eun Park ,  Si Jung Lee ,  Jong Gil Kim

IPC: C08J5/18 ,  C08K5/14 ,  C08K5/5419 ,  H01L31/048

CPC classification number: C08J5/18 ,  C08K5/14 ,  C08K5/5419 ,  H01L31/0481 ,  C08J2323/08

Abstract: An encapsulant film composition including an ethylene/alpha-olefin copolymer and a crosslinking aid comprising a compound represented by Formula 1 below, an encapsulant film, and a solar cell module are described. When an encapsulant film is produced using such encapsulant film composition, the immersing time of an ethylene/alpha-olefin copolymer is reduced so that the economic viability of a process of producing an encapsulant film can be improved. In addition, the encapsulant film composition produced exhibits excellent crosslinking degree.






wherein all the variables are described herein.