公开(公告)号：US20220259358A1

公开(公告)日：2022-08-18

申请号：US17625190

申请日：2021-03-29

Applicant: LG CHEM, LTD.

Inventor： Kwang Jin Lee ,  Ki Hyun Yoo ,  Yoon Ho Kim ,  Sang Il Nam ,  Kyung Bok Sun

IPC: C08F279/02 ,  C08L27/06

Abstract: Disclosed is a graft copolymer, and a graft copolymer including a rubbery polymer, wherein the rubbery polymer includes a conjugated diene-based monomer unit, and one or more compound units selected from the group consisting of compounds represented by Formula 1, wherein the graft copolymer includes an alkyl (meth)acrylate-based monomer unit and an aromatic vinyl-based monomer unit, the content of the one or more compound units selected from the group consisting of the compounds represented by Formula 1 is from 0.1 wt % to 5.0 wt % with respect to the graft copolymer, the alkyl (meth)acrylate-based monomer unit is crosslinked from a crosslinking agent, and a weight average molecular weight of the aromatic vinyl-based monomer unit is from 20,000 g/mol to 100,000 g/mol. Also disclosed is a method for preparing a graft copolymer and a resin composition including same.

公开(公告)号：US20240287303A1

公开(公告)日：2024-08-29

申请号：US18279173

申请日：2022-08-18

Applicant: LG Chem, Ltd.

Inventor： Sung Eun Park ,  Ki Hyun Yoo ,  Min Ah Jeong ,  Sang Hoon Han

IPC: C08L51/04 ,  C08F212/08 ,  C08F220/14 ,  C08F220/18 ,  C08L63/00 ,  C09J151/04 ,  C09J163/00

CPC classification number: C08L51/04 ,  C08F212/08 ,  C08F220/14 ,  C08F220/1804 ,  C08L63/00 ,  C09J151/04 ,  C09J163/00 ,  C08L2205/22 ,  C08L2207/53

Abstract: The present invention relates to a graft copolymer, and to a core-shell type graft copolymer comprising a core comprising a rubbery polymer; and a shell formed by graft polymerizing a graft monomer to the rubbery polymer, wherein the rubbery polymer comprises a conjugated diene-based monomer unit, the graft copolymer comprises the core in 75 wt % to 83 wt %, and a thickness of the shell is 3 nm to 25 nm, a curable resin composition comprising same, and an adhesive composition.

公开(公告)号：US11746173B2

公开(公告)日：2023-09-05

申请号：US17423360

申请日：2020-08-18

Applicant: LG Chem, Ltd.

Inventor： Sang Il Nam ,  Ki Hyun Yoo ,  Yoon Ho Kim

IPC: C08L51/04 ,  C08F236/10 ,  C08F279/06 ,  C08L27/06

CPC classification number: C08F236/10 ,  C08F279/06 ,  C08L27/06 ,  C08L2207/53

Abstract: Provided is a core-shell copolymer, and in particular, a core-shell copolymer including a core and a shell surrounding the core, wherein the core includes a conjugated diene monomer-derived repeating unit, an aromatic vinyl monomer-derived repeating unit, and an aromatic (meth)acrylate monomer-derived repeating unit, the shell includes an alkyl (meth)acrylate monomer-derived repeating unit, an aromatic vinyl monomer-derived repeating unit, and an aromatic (meth)acrylate monomer-derived repeating unit, the core has a particle size of 800 Å to 900 Å, the core-shell copolymer has a particle size of 900 Å to 1000 Å, the core has a refractive index of 1.5355 to 1.5425, and the core-shell copolymer has a refractive index of 1.5415 to 1.5440.

公开(公告)号：US20210002193A1

公开(公告)日：2021-01-07

申请号：US16978310

申请日：2019-11-13

Applicant: LG Chem, Ltd.

Inventor： Hye Rim Lee ,  Yoon Ho Kim ,  Ki Hyun Yoo

IPC: C07C29/132 ,  B01J23/30 ,  B01J19/00 ,  B01J19/18 ,  B01J23/46

Abstract: A core-shell copolymer, a method of making the same, and a thermoplastic resin including the same are disclosed herein. In some embodiments, a core-shell copolymer including a core and a shell surrounding the core, wherein the core includes a first alkyl(meth)acrylate monomer-derived repeating unit having 1 to 8 carbon atoms and a terminal-modified polydimethylsiloxane crosslinking agent-derived crosslinking part wherein the terminal-modified polydimethylsiloxane crosslinking agent includes a second alkyl(meth)acrylate monomer-derived modified part at both terminals of the polydimethylsiloxane.

公开(公告)号：US20240182706A1

公开(公告)日：2024-06-06

申请号：US18285346

申请日：2022-08-12

Applicant: LG Chem, Ltd.

Inventor： Sang Hoon Han ,  Ki Hyun Yoo ,  Min Ah Jeong ,  Yong Kyun Kim

IPC: C08L63/10 ,  C08L9/10

CPC classification number: C08L63/10 ,  C08L9/10 ,  C08L2205/03 ,  C08L2207/53

Abstract: The present disclosure relates to a graft copolymer. Additionally provided is a graft copolymer composition having excellent particulate dispersibility in a curable resin such as an epoxy resin and being applicable as a particulate impact reinforcing agent, a curable resin composition including the graft copolymer, and methods of preparing them.

公开(公告)号：US20240084126A1

公开(公告)日：2024-03-14

申请号：US18273187

申请日：2022-08-12

Applicant: LG Chem, Ltd.

Inventor： Min Ah Jeong ,  Ki Hyun Yoo ,  Sang Hoon Han ,  Yong Kyun Kim

IPC: C08L63/00 ,  C08C3/00 ,  C08F279/02 ,  C08J3/00

CPC classification number: C08L63/00 ,  C08C3/00 ,  C08F279/02 ,  C08J3/005 ,  C08J2363/00 ,  C08J2451/04 ,  C08L2207/53

Abstract: A graft copolymer, and a graft copolymer composition having excellent particulate dispersibility in a curable resin such as an epoxy resin and is applicable as a particulate impact reinforcing agent, a curable resin composition including same, and methods of preparing them.

公开(公告)号：US11820730B2

公开(公告)日：2023-11-21

申请号：US16978310

申请日：2019-11-13

Applicant: LG Chem, Ltd.

Inventor： Hye Rim Lee ,  Yoon Ho Kim ,  Ki Hyun Yoo

IPC: C07C29/132 ,  B01J19/00 ,  B01J19/18 ,  B01J23/30 ,  B01J23/46 ,  C07C31/20

CPC classification number: C07C29/132 ,  B01J19/0066 ,  B01J19/18 ,  B01J23/30 ,  B01J23/462 ,  B01J2219/00033 ,  C07C31/202

Abstract: A core-shell copolymer, a method of making the same, and a thermoplastic resin including the same are disclosed herein. In some embodiments, a core-shell copolymer including a core and a shell surrounding the core, wherein the core includes a first alkyl(meth)acrylate monomer-derived repeating unit having 1 to 8 carbon atoms and a terminal-modified polydimethylsiloxane crosslinking agent-derived crosslinking part wherein the terminal-modified polydimethylsiloxane crosslinking agent includes a second alkyl(meth)acrylate monomer-derived modified part at both terminals of the polydimethylsiloxane.

公开(公告)号：US20220127401A1

公开(公告)日：2022-04-28

申请号：US17423360

申请日：2020-08-18

Applicant: LG Chem, Ltd.

Inventor： Sang Il Nam ,  Ki Hyun Yoo ,  Yoon Ho Kim

IPC: C08F236/10 ,  C08F279/06 ,  C08L27/06

Abstract: Provided is a core-shell copolymer, and in particular, a core-shell copolymer including a core and a shell surrounding the core, wherein the core includes a conjugated diene monomer-derived repeating unit, an aromatic vinyl monomer-derived repeating unit, and an aromatic (meth)acrylate monomer-derived repeating unit, the shell includes an alkyl (meth)acrylate monomer-derived repeating unit, an aromatic vinyl monomer-derived repeating unit, and an aromatic (meth)acrylate monomer-derived repeating unit, the core has a particle size of 800 Å to 900 Å, the core-shell copolymer has a particle size of 900 Å to 1000 Å, the core has a refractive index of 1.5355 to 1.5425, and the core-shell copolymer has a refractive index of 1.5415 to 1.5440.

公开(公告)号：US20240002652A1

公开(公告)日：2024-01-04

申请号：US18039763

申请日：2022-03-02

Applicant: LG Chem, Ltd.

Inventor： Min Ah Jeong ,  Ki Hyun Yoo ,  Sang Hoon Han ,  Hye Rim Lee

IPC: C08L51/04 ,  C08L9/10 ,  C08F220/14 ,  C08F220/18 ,  C08F212/08 ,  C08F222/10 ,  C08L63/00

CPC classification number: C08L51/04 ,  C08L9/10 ,  C08F220/14 ,  C08F220/1804 ,  C08F212/08 ,  C08F222/102 ,  C08L63/00 ,  C08L2207/53 ,  C08L2205/22

Abstract: The present invention relates to a graft copolymer, and to a core-shell type graft copolymer comprising: a core comprising a rubbery polymer; and a shell formed by graft polymerizing a graft monomer to the rubbery polymer, wherein the graft copolymer comprises the core in 72 wt % to 83 wt %, the core has an average particle diameter of 250 nm or more, and the shell has a weight average molecular weight of 40,000 g/mol or less, a curable resin composition including the same, and methods of preparing them.

公开(公告)号：US20230167217A1

公开(公告)日：2023-06-01

申请号：US17624893

申请日：2021-04-19

Applicant: LG CHEM, LTD.

Inventor： Sang Il Nam ,  Ki Hyun Yoo ,  Yoon Ho Kim ,  Kwang Jin Lee

IPC: C08F279/02 ,  C08F285/00 ,  C08F236/06 ,  C08L91/00 ,  C08F220/14 ,  C08F220/18 ,  C08F212/08 ,  C08F228/02 ,  C08F2/24 ,  C08J3/12

CPC classification number: C08F279/02 ,  C08F285/00 ,  C08F236/06 ,  C08L91/00 ,  C08F220/14 ,  C08F220/1802 ,  C08F212/08 ,  C08F228/02 ,  C08F2/24 ,  C08J3/12 ,  C08F2800/20 ,  C08L2201/52 ,  C08J2351/04

Abstract: Disclosed is a graft copolymer, and a graft copolymer including a rubbery polymer, wherein the rubbery polymer includes a conjugated diene-based monomer unit and a soft domain, the graft copolymer includes an alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit, and an alkali metal sulfonate-based monomer unit, the soft domain is formed by including a mineral-based oil, the mineral-based oil includes 70 wt % to 100 wt % of a mineral oil and 0 wt % to 30 wt % of a silicone-based oil, the mineral-based oil is included in 0.2 parts by weight to 0.5 parts by weight based on 100 parts by weight of the rubbery polymer, and the alkali metal sulfonate-based monomer unit is included in 0.8 wt % to 1.5 wt % based on the graft copolymer, a method for preparing the same, and a resin composition including the same.