公开(公告)号：US20220033633A1

公开(公告)日：2022-02-03

申请号：US17299256

申请日：2020-09-11

Applicant: LG CHEM, LTD.

Inventor： Jeongmin JANG ,  Tae Hoon KIM ,  Chun Ho PARK ,  Da Eun SUNG ,  Yong Hee AN ,  Wangrae CHO ,  Ho Hoon KIM

IPC: C08L25/12 ,  C08F265/02

Abstract: The present invention relates to a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same. More specifically, the thermoplastic resin composition of the present invention includes 100 parts by weight of a base resin consisting of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing acrylate rubber having an average particle diameter of 0.05 to 0.15 μm as a core, an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing acrylate rubber having an average particle diameter of 0.3 to 0.6 μm as a core, an aromatic vinyl polymer (B-1), and a heat-resistant aromatic vinyl polymer (B-2); and 0.5 to 10 parts by weight of a polyolefin elastomer (C). Within this range, the thermoplastic resin composition may have a heat deflection temperature (HDT) of 89° C. or more.

公开(公告)号：US20190023892A1

公开(公告)日：2019-01-24

申请号：US16069438

申请日：2017-11-01

Applicant: LG CHEM, LTD.

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

IPC: C08L51/00 ,  C08L33/10

Abstract: The present invention relates to a thermoplastic resin composition having excellent weather resistance, according to the present invention, the thermoplastic resin composition has excellent weather resistance, gloss, and impact resistance, and thus may be suitable for use as exterior materials for structures, such as siding and window frames.

公开(公告)号：US20240182694A1

公开(公告)日：2024-06-06

申请号：US17796366

申请日：2022-02-07

Applicant: LG CHEM, LTD.

Inventor： Chun Ho PARK ,  Tae Hoon KIM ,  Daeun SUNG ,  Yong Hee AN ,  Wangrae JOE ,  Jeongmin JANG

IPC: C08L25/12

CPC classification number: C08L25/12 ,  C08L2205/025 ,  C08L2205/035

Abstract: The present invention relates to a thermoplastic resin composition and an exterior material including the same. More particularly, the present invention has an effect of providing a thermoplastic resin composition having even and low gloss while maintaining mechanical properties and processability equal or superior to those of a conventional ASA resin; having natural coloring through control for a uniform refractive index; and being capable of reducing appearance defects due to excellent co-extrusion processability with PVC and an exterior material including the thermoplastic resin.

公开(公告)号：US20240110049A1

公开(公告)日：2024-04-04

申请号：US17768656

申请日：2020-12-11

Applicant: LG CHEM, LTD.

Inventor： Daeun SUNG ,  Tae Hoon KIM ,  Chun Ho PARK ,  Yong Hee AN ,  Wangrae JOE ,  Ho Hoon KIM ,  Jeongmin JANG

IPC: C08L25/12 ,  C08K3/013

CPC classification number: C08L25/12 ,  C08K3/013 ,  C08L2205/025 ,  C08L2205/035

Abstract: The present disclosure relates to a thermoplastic resin composition and an exterior material including the same. The thermoplastic resin composition included 90 to 99.5% by weight of styrene-based resins each including 5 to 30% by weight of acrylate rubber having a DLS average particle diameter of 0.25 to 0.32 μm or a TEM average particle diameter of 0.2 to 0.27 μm based on a total weight of the styrene-based resins; and 0.5 to 10% by weight of a polyamide resin, and an exterior material including the thermoplastic resin composition. According to the present disclosure, a low-gloss thermoplastic resin composition having excellent aesthetics, such as softness, luxuriousness, and naturalness, due to uniformity, low gloss, and improvement in surface texture while having mechanical properties and processability equal or superior to those of conventional ASA resins; and an exterior material including the low-gloss thermoplastic resin composition may be provided.

公开(公告)号：US20230174769A1

公开(公告)日：2023-06-08

申请号：US17919326

申请日：2022-01-27

Applicant: LG CHEM, LTD.

Inventor： Daeun SUNG ,  Wangrae JOE ,  Daewoong LEE ,  Tae Hoon KIM ,  Chun Ho PARK ,  Yong Hee AN ,  Jeongmin JANG

IPC: C08L51/00 ,  C08L25/12 ,  C08L77/06

CPC classification number: C08L51/003 ,  C08L25/12 ,  C08L77/06 ,  C08L2205/025 ,  C08L2205/035

Abstract: The present disclosure relates to a thermoplastic resin composition and an exterior material including the same. The thermoplastic resin composition has low gloss and has mechanical properties and processability equal or superior to those of conventional ASA resins. The thermoplastic resin composition also has improved viscoelastic properties that can lead to excellent processability during the manufacture of a co-extruded product and excellent adhesion within the co-extruded product. The thermoplastic resin composition is also capable of reducing surface defects.

公开(公告)号：US20210171695A1

公开(公告)日：2021-06-10

申请号：US16084940

申请日：2018-01-12

Applicant: LG CHEM, LTD.

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

IPC: C08F285/00 ,  C08K5/092 ,  C08L25/12 ,  C08L51/04 ,  B29C45/00

Abstract: The present invention relates to a method of preparing an ASA graft copolymer, a method of preparing a thermoplastic resin composition including the ASA graft copolymer, and a method of manufacturing a molded article using the thermoplastic resin composition. More particularly, the present invention provides an ASA graft copolymer having improved thermal stability through addition of an emulsifier in a specific amount range in a seed preparation step and introduction of a multifunctional carboxylic acid having 20 or more carbon atoms or a salt thereof, as an emulsifier, in a shell preparation step and a high-quality thermoplastic resin composition exhibiting excellent impact resistance, such as impact strength and tensile strength, and excellent appearance, such as surface gloss, whiteness, and retention-associated heat discoloration, and causing considerable reduction in the amount of gas generated on a surface of a resin during a high-temperature thermoforming process due to inclusion of the ASA graft copolymer.

公开(公告)号：US20180355161A1

公开(公告)日：2018-12-13

申请号：US15781073

申请日：2017-10-25

Applicant: LG CHEM, LTD.

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

IPC: C08L25/12 ,  C08F285/00 ,  C08F2/24

CPC classification number: C08L25/12 ,  B29C45/0001 ,  C08F2/24 ,  C08F212/08 ,  C08F220/70 ,  C08F285/00 ,  C08F2800/20 ,  C08F2810/20 ,  C08J3/12 ,  C08J3/24 ,  C08L51/00 ,  C08L2312/00

Abstract: The present invention relates to a method of preparing an ASA graft copolymer, a method of preparing a thermoplastic ASA resin composition including the same, and a method of preparing an ASA molded part, and more particularly, to a method of preparing a multilayered ASA graft copolymer including a step of preparing seeds, cores, and shells. According to the method, since a multifunctional carboxylic acid having 20 or more carbon atoms or a salt thereof is introduced as an emulsifier, the content of the emulsifier remaining in a resin may be reduced, thereby providing an ASA resin having excellent thermal stability and appearance characteristics while the inherent physical properties thereof, such as impact resistance and weather resistance, are maintained.

公开(公告)号：US20230235161A1

公开(公告)日：2023-07-27

申请号：US17793527

申请日：2021-12-14

Applicant: LG CHEM, LTD.

Inventor： Yong Hee AN ,  Chun Ho PARK ,  Jeongmin JANG ,  Tae Hoon KIM ,  Daeun SUNG ,  Wangrae JOE

IPC: C08L51/00 ,  C08F212/08 ,  C08F220/44 ,  C08F220/14

CPC classification number: C08L51/003 ,  C08F212/08 ,  C08F220/44 ,  C08F220/14 ,  C08L2201/10 ,  C08L2205/025 ,  C08L2203/30

Abstract: The present disclosure relates to a thermoplastic resin composition, a method of preparing the same, and a molded article including the same. For example, the present disclosure relates to a thermoplastic resin composition including 35 to 85% by weight of an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A) containing alkyl acrylate rubber having an average particle diameter of 50 to 120 nm and 15 to 65% by weight of a polymethacrylate resin (B). The thermoplastic resin composition has an alkyl acrylate coverage value (X) of 70% or more as calculated by Equation 1. The thermoplastic resin composition may have beneficial mechanical properties, such as impact strength, tensile strength, and flexural strength, surface hardness, transparency, and colorability and may be capable of preventing occurrence of whitening during bending due to beneficial non-whitening properties.

公开(公告)号：US20220363888A1

公开(公告)日：2022-11-17

申请号：US17760994

申请日：2021-05-26

Applicant: LG CHEM, LTD.

Inventor： Wangrae JOE ,  Daeun SUNG ,  Tae Hoon KIM ,  Chun Ho PARK ,  Yong Hee AN ,  Jeongmin JANG

IPC: C08L51/00 ,  C08L25/12 ,  B29C48/00 ,  B29C48/395

Abstract: The present disclosure relates to a thermoplastic resin composition and a molded article including the same. The thermoplastic resin composition includes 10 to 70% by weight of a graft copolymer (A) including an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing acrylate rubber having an average particle diameter of 50 to 150 nm and an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing acrylate rubber having an average particle diameter of 300 to 600 nm; and 30 to 90% by weight of a non-grafted copolymer (B) including a high molecular weight aromatic vinyl compound-vinyl cyanide compound copolymer (B-1) having a weight average molecular weight of 160,000 to 200,000 g/mol and a low molecular weight aromatic vinyl compound-vinyl cyanide compound copolymer (B-2) having a weight average molecular weight of 80,000 g/mol or more and less than 160,000 g/mol.

公开(公告)号：US20220348759A1

公开(公告)日：2022-11-03

申请号：US17620409

申请日：2021-06-03

Applicant: LG CHEM, LTD.

Inventor： Yong Hee AN ,  Tae Hoon KIM ,  Chun Ho PARK ,  Daeun SUNG ,  Wangrae JOE ,  Jeongmin JANG

IPC: C08L51/00 ,  C08L25/12 ,  C08L25/16 ,  C08L33/12 ,  B29C48/00

Abstract: A thermoplastic resin composition including 100 parts by weight of a base resin including 0.5 to 45% by weight of a graft copolymer (A-1) including acrylate rubber having an average particle diameter of 50 to 150 nm, an aromatic vinyl compound, and a vinyl cyanide compound, 20 to 80% by weight of a graft copolymer (A-2) including acrylate rubber having an average particle diameter of 151 to 600 nm, an aromatic vinyl compound, and a vinyl cyanide compound, and 10 to 45% by weight of an α-methylstyrene-based copolymer (B) having a weight average molecular weight of 60,000 to 180,000 g/mol; and 0.5 to 10 parts by weight of an ultra-high molecular weight copolymer (C) having a weight average molecular weight of 1,000,000 to 12,000,000 g/mol. A method of preparing the thermoplastic resin composition and a molded article including the thermoplastic resin composition are also disclosed.