公开(公告)号：US20250092245A1

公开(公告)日：2025-03-20

申请号：US18291559

申请日：2023-07-24

Applicant: LG CHEM, LTD.

Inventor： Min Jung KIM ,  Yong Yeon HWANG ,  Bong Keun AHN ,  Jangwon PARK ,  Jiyoon JEON ,  Eunji LEE ,  Seyong KIM ,  Gyeongdong YEOM

IPC: C08L51/04 ,  C08J3/12

Abstract: The present invention relates to a thermoplastic resin composition, a method of preparing the same, and a molded article including the same, and more particularly, to a thermoplastic resin composition having eco-friendliness and excellent molding processability, mechanical rigidity, heat resistance, and colorability by including a predetermined ASA-based graft copolymer and a recycled resin, a method of preparing the thermoplastic resin composition, and a molded article including the thermoplastic resin composition.

公开(公告)号：US20210246236A1

公开(公告)日：2021-08-12

申请号：US17051757

申请日：2019-10-10

Applicant: LG CHEM, LTD.

Inventor： Min Jung KIM ,  Yong Yeon HWANG ,  Bong Keun AHN ,  Wang Rae JOE ,  Jang Won PARK ,  Ji Yoon JEON

IPC: C08F6/22 ,  C08F2/22 ,  C08F20/14 ,  C08F265/06 ,  C08F12/08 ,  C08F20/44

Abstract: The present invention relates to a method of preparing a graft copolymer powder, which includes: preparing a seed by adding one or more selected from the group consisting of an alkyl (meth)acrylate-based monomer, an aromatic vinyl-based monomer and a vinyl cyan-based monomer to a reactor and carrying out polymerization; preparing a core in the presence of the seed by adding an alkyl (meth)acrylate-based monomer and carrying out polymerization; and preparing a graft copolymer latex in the presence of the core by adding an aromatic vinyl-based monomer and a vinyl cyan-based monomer and carrying out polymerization; adding an alkyl methacrylate-based polymer to the graft copolymer latex and carrying out coagulation, and more particularly, to a method of preparing a graft copolymer powder that is excellent in weather resistance, fluidity, mechanical properties, surface gloss and appearance quality.

公开(公告)号：US20210198484A1

公开(公告)日：2021-07-01

申请号：US16771175

申请日：2019-04-05

Applicant: LG CHEM, LTD.

Inventor： Je Sun YOO ,  Ki Young NAM ,  Yong Yeon HWANG ,  Jae Yong SIM ,  Seon Hyeong BAE ,  Jae Yeon BAE ,  In Seok KIM

IPC: C08L71/12 ,  C08L51/04 ,  C08K5/5397 ,  C08K5/5313 ,  C08K5/50

Abstract: Provided is a thermoplastic resin composition which includes: a base resin including a polyarylene oxide-based polymer at 100 parts by weight; and an additive including one or more selected from the group consisting of compounds represented by Chemical Formula 1-1 to Chemical Formula 1-3 at 0.1 to 5 parts by weight, and can be used for producing a thermoplastic resin molded article which exhibits an excellent coloring property and thus has an aesthetically pleasing appearance.

公开(公告)号：US20200165439A1

公开(公告)日：2020-05-28

申请号：US16618772

申请日：2018-10-30

Applicant: LG CHEM, LTD.

Inventor： Yong Hee AN ,  Yong Yeon HWANG ,  Chun Ho PARK ,  Jang Won PARK

IPC: C08L51/00

Abstract: The present invention relates to a thermoplastic resin composition, including a first graft copolymer including an alkyl (meth)acrylate-based polymer-derived unit, an aromatic vinyl-based monomer-derived unit, and a vinyl cyanide-based monomer-derived unit; a copolymer including an aromatic vinyl-based monomer-derived unit and a vinyl cyanide-based monomer-derived unit; a polyester-based elastomer; and a phthalate-based plasticizer.

公开(公告)号：US20220356340A1

公开(公告)日：2022-11-10

申请号：US17640624

申请日：2020-12-10

Applicant: LG CHEM, LTD.

Inventor： Jangwon PARK ,  Yong Yeon HWANG ,  Bong Keun AHN ,  Min Jung KIM ,  Jiyoon JEON ,  Eunji LEE ,  Seyong KIM

IPC: C08L51/00 ,  C08F265/06

Abstract: Disclosed is a thermoplastic resin including an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A), or an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A) and a matrix resin (B) including one or more selected from the group consisting of an aromatic vinyl compound, a vinyl cyanide compound, an alkyl methacrylate, and an alkyl acrylate, wherein the total content of the alkyl acrylate is 20 to 50% by weight, and an alkyl acrylate coverage value (X) as calculated by Equation 1 below is 65 or more: X={(G−Y)/Y}×100,   [Equation 1] wherein G represents the total gel content (%) of the thermoplastic resin, and Y represents the content (% by weight) of the alkyl acrylate in the gel of the thermoplastic resin.

公开(公告)号：US20220348761A1

公开(公告)日：2022-11-03

申请号：US17766162

申请日：2021-07-19

Applicant: LG CHEM, LTD.

Inventor： Eunji LEE ,  Yong Yeon HWANG ,  Bong Keun AHN ,  Min Jung KIM ,  Jangwon PARK ,  Jiyoon JEON ,  Seyong KIM

IPC: C08L51/04 ,  C08F265/06

Abstract: The present disclosure relates to a thermoplastic resin having excellent non-whitening properties, impact strength, gloss, and fluidity, and a method of preparing the thermoplastic resin. The thermoplastic resin includes an alkyl acrylate-alkyl methacrylate graft copolymer (A), or the copolymer (A) and a matrix resin (B) including an alkyl methacrylate polymer and/or an alkyl methacrylate-alkyl acrylate copolymer. A transparency of the thermoplastic resin having a thickness of 0.15 mm is less than 2, a total content of the alkyl acrylate in the thermoplastic resin is 20 to 50% by weight, and a butyl acrylate coverage value (X) as calculated by Equation 1 below is 50 or more: X={(G−Y)/Y}×100,  [Equation 1] wherein G represents a total gel content (%) of the thermoplastic resin, and Y represents a content (% by weight) of butyl acrylate in the gel of the thermoplastic resin.

公开(公告)号：US20210238404A1

公开(公告)日：2021-08-05

申请号：US17052507

申请日：2019-10-29

Applicant: LG CHEM, LTD.

Inventor： Da Eun SUNG ,  Yong Yeon HWANG ,  Chun Ho PARK ,  Yong Hee AN ,  Jeong Min JANG

IPC: C08L51/00 ,  C08L25/12 ,  C08L23/08

Abstract: Provided is a thermoplastic resin composition which includes: a graft copolymer including a C4 to C10 alkyl (meth)acrylate-based monomer unit, a styrene-based monomer unit, and a vinyl cyan-based monomer unit; a first styrene-based copolymer including a C1 to C3 alkyl-substituted styrene-based monomer unit and a vinyl cyan-based monomer unit; and a second styrene-based copolymer including an unsubstituted styrene-based monomer unit and a vinyl cyan-based monomer unit. The thermoplastic resin composition is remarkably excellent in heat resistance, chemical resistance, and appearance characteristics while maintaining basic properties.

公开(公告)号：US20210108070A1

公开(公告)日：2021-04-15

申请号：US17055493

申请日：2019-11-13

Applicant: LG CHEM, LTD.

Inventor： Chun Ho PARK ,  Yong Yeon HWANG ,  Da Eun SUNG ,  Yong Hee AN ,  Jeong Min JANG

IPC: C08L55/02 ,  C08L33/12 ,  C08L25/14

Abstract: Provided is a thermoplastic resin composition which includes: a graft copolymer prepared by graft-polymerizing an aromatic vinyl-based monomer and a vinyl cyan-based monomer onto an acrylic rubber polymer having an average particle diameter of 50.0 to 90.0 nm; a matrix copolymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit; and an additive including a polymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, specifically, a thermoplastic resin composition which has improved properties in terms of elongation, processability, weather resistance, colorability, hardness, chemical resistance, scratch resistance, a whitening phenomenon, surface gloss and appearance quality while having excellent basic properties.

公开(公告)号：US20190382574A1

公开(公告)日：2019-12-19

申请号：US16302038

申请日：2017-11-01

Applicant: LG CHEM, LTD.

Inventor： Yong Hee AN ,  Yong Yeon HWANG ,  Hyun Taek OH ,  Bong Keun AHN ,  Min Jung KIM ,  Chun Ho PARK ,  Eun Soo KANG ,  Jang Won PARK

IPC: C08L33/06 ,  C08J3/20 ,  C08J5/18

Abstract: A thermoplastic resin composition with low gloss and improved colorability, pencil hardness and wear resistance has (A) 5 to 35% by weight of a first graft copolymer having an average particle diameter of 50 to 150 nm and containing acrylate rubber as a core; (B) 10 to 40% by weight of a second graft copolymer having an average particle diameter of more than 150 nm and 800 nm or less and containing acrylate rubber as a core; (C) 5 to 15% by weight of an aromatic vinyl compound-vinyl cyanide compound copolymer having a weight average molecular weight of 70,000 to 130,000 g/mol; (D) 20 to 50% by weight of an aromatic vinyl compound-(meth)acrylate compound copolymer having a weight average molecular weight of 65,000 to 100,000 g/mol; and (E) 0.1 to 7% by weight of a syndiotactic polystyrene resin.

公开(公告)号：US20180265687A1

公开(公告)日：2018-09-20

申请号：US15533362

申请日：2016-11-10

Applicant: LG CHEM, LTD.

Inventor： Chun Ho PARK ,  Yong Yeon HWANG ,  Hyun Taek OH ,  Min Jung KIM ,  Sang Mi LEE ,  Yeong Min LEE ,  Eun Soo KANG

IPC: C08L25/12 ,  C08L25/16 ,  C08L51/04 ,  C08L51/06

CPC classification number: C08L25/12 ,  C08F265/04 ,  C08F279/04 ,  C08L25/16 ,  C08L51/04 ,  C08L51/06 ,  C08L2201/02 ,  C08L2201/08 ,  C08L2203/20 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2205/035 ,  C08L2207/04 ,  C08F212/10 ,  C08L55/02 ,  C08L35/06

Abstract: The present disclosure relates to a thermoplastic resin composition providing superior low-gloss characteristic, weather resistance, and mechanical properties and an extruded article manufactured from the same. More particularly, the present invention relates to a thermoplastic resin composition including 40 to 70% by weight of an aromatic vinyl compound-vinyl cyan compound copolymer as a matrix resin; 20 to 40% by weight of an acrylic graft copolymer (a) in which 46 to 95% by weight of an aromatic vinyl compound-vinyl cyan compound copolymer is grafted to 5 to 54% by weight of a (meth)acrylate-based rubbery polymer having an average particle diameter of 0.05 to 1 μm; 1 to 10% by weight of an acrylic graft copolymer (b) in which 5 to 45% by weight of an aromatic vinyl compound-vinyl cyan compound copolymer is grafted to 55 to 95 % by weight of a (meth)acrylate-based rubbery polymer having an average particle diameter of 0.05 to 1 μm; and 1 to 20% by weight of a large-diameter diene-based graft copolymer (c) in which 80 to 95% by weight of an aromatic vinyl compound-vinyl cyan compound copolymer is grafted to 5 to 20% by weight of a diene-based rubbery polymer having an average particle diameter of 1 to 20 μm, and thus, providing superior low-gloss characteristic, weather resistance, and mechanical properties, and an extruded article manufactured from the same.