公开(公告)号：US09504972B2

公开(公告)日：2016-11-29

申请号：US14367557

申请日：2013-12-24

Applicant: LG CHEM, LTD.

Inventor： Chang Sull Kim ,  Min Cheol Ju ,  Hyung Sub Lee ,  Hoi In Jeong

IPC: B01J19/20 ,  B01F7/08 ,  C08L51/00 ,  B01J19/00 ,  C08F2/01 ,  C08J3/16 ,  C08F236/06 ,  C08F279/04 ,  B01F7/00 ,  B01J8/10

CPC classification number: B01F7/08 ,  B01F7/00425 ,  B01J8/10 ,  B01J19/0066 ,  B01J19/20 ,  B01J2208/00371 ,  B01J2208/0084 ,  B01J2208/00867 ,  B01J2219/00761 ,  B01J2219/182 ,  C08F2/01 ,  C08F236/06 ,  C08F279/04 ,  C08J3/16 ,  C08J2351/04 ,  C08L51/003

Abstract: Disclosed are an apparatus for preparing a polymer latex resin powder in which an efficiency of mixing of steam, a latex, and a coagulant is increased by introducing a non-continuous screw into a reactor that performs coagulation and aging and thus a moisture content of a slurry is decreased and, accordingly, drying efficiency may be enhanced, and a polymer latex resin powder with excellent color and powder characteristics may be prepared using a decreased amount of coagulant and a method of preparing a polymer latex resin powder by using the same.

Abstract translation: 公开了一种制备聚合物胶乳树脂粉末的装置，其中通过将非连续螺杆引入进行凝结和老化的反应器中，从而提高了蒸汽，胶乳和凝结剂的混合效率，从而提高了水分含量 浆料减少，因此可以提高干燥效率，并且可以使用减少量的凝结剂和制备聚合物胶乳树脂粉末的方法制备具有优异的颜色和粉末特性的聚合物胶乳树脂粉末。

公开(公告)号：US10392464B2

公开(公告)日：2019-08-27

申请号：US15548999

申请日：2016-11-22

Applicant: LG CHEM, LTD.

Inventor： Joo Byung Chai ,  Yu Sung Jung ,  Eun Seon Park ,  Tae Young Jeon ,  Young Min Kim ,  Jong Beom Kim ,  Chang Sull Kim

IPC: C08F279/04 ,  C08L25/12 ,  C08L51/04 ,  C08L25/16

Abstract: The present invention relates to a thermoplastic resin, a method of preparing the thermoplastic resin, and a thermoplastic resin composition including the thermoplastic resin. More particularly, the present invention relates to a thermoplastic resin characterized by maximizing a ratio of monomers grafted to rubber particles and a graft rate so as to maintain a rubber particle shape in a high shear environment and varying the composition of each of monomers grafted to the inside and outside of rubber particles, a method of preparing the thermoplastic resin, and a thermoplastic resin composition having superior impact strength, falling dart impact strength, heat deflection temperature, chemical resistance, and plating adhesion strength due to inclusion of the thermoplastic resin.

公开(公告)号：US09845370B2

公开(公告)日：2017-12-19

申请号：US15022550

申请日：2015-10-06

Applicant: LG CHEM, LTD.

Inventor： Joo Byung Chai ,  Eun Seon Park ,  Tae Young Jeon ,  Young Min Kim ,  Jong Beom Kim ,  Chang Sull Kim ,  Yu Sung Jung

IPC: C08L51/04 ,  C08L25/12 ,  C08F212/10 ,  C08F2/22 ,  C08F2/38 ,  C08F2/44 ,  C08F265/08 ,  C08F279/04 ,  C08F212/12 ,  C08L51/06

CPC classification number: C08F212/10 ,  C08F2/22 ,  C08F2/38 ,  C08F2/44 ,  C08F212/12 ,  C08F265/08 ,  C08F279/04 ,  C08L25/12 ,  C08L51/06 ,  C08F220/44 ,  C08L55/02

Abstract: The present invention relates to a method of preparing a heat-resistant resin, a heat-resistant resin, and a heat-resistant ABS resin. According to the preparation method of the present invention, the heat-resistant resin can be prepared at a high polymerization conversion rate within a shortened polymerization time, and the amount of polymerized coagulum and the content of fine particles upon coagulation are decreased. Accordingly, a heat-resistant resin and a heat-resistant ABS resin composition with enhanced heat deflection temperature and processability are provided.

公开(公告)号：US11066542B2

公开(公告)日：2021-07-20

申请号：US16077426

申请日：2017-11-15

Applicant: LG CHEM, LTD.

Inventor： Jong Beom Kim ,  Joo Byung Chai ,  Yu Sung Jung ,  Chang Sull Kim ,  Eun Seon Park ,  Tae Young Jeon ,  Young Min Kim

IPC: B29C45/00 ,  C08F212/10 ,  C08L25/12 ,  C08F6/22 ,  C08F2/24 ,  B29K25/00

Abstract: The present invention relates to a method of preparing a thermoplastic resin, a method of preparing a thermoplastic resin composition including the same, and a method of manufacturing an injection-molded article using the thermoplastic resin composition. By using a mixture of molecular weight modifiers having different reactivities according to the present invention, coagulation may be performed using a small amount of coagulant, productivity may be increased, and a molded article, which is manufactured using a thermoplastic resin, having excellent appearance characteristics along with superior mechanical strength, processability, or the like may be provided.

公开(公告)号：US10752754B2

公开(公告)日：2020-08-25

申请号：US15037029

申请日：2015-12-04

Applicant: LG CHEM, LTD.

Inventor： Chang Sull Kim ,  Joo Byung Chai ,  Tae Young Jeon ,  Young Min Kim ,  Yu Sung Jung ,  Jong Beom Kim ,  Eun Seon Park

IPC: C08K9/06

Abstract: The present invention relates to a heat-resistant resin and a method of preparing the same. More particularly, the present invention relates to a heat-resistant resin including 100 parts by weight of a styrene based resin and 0.5 to 5 parts by weight of silica having a contact angle of 10 to 60° and an average particle diameter of 0.1 nm or more and 100 nm or less, a method of preparing the same and a heat-resistant resin composition including the same. In accordance with the present invention, provided are a heat-resistant resin having a low moisture content and a small content of fine particles while having heat resistance equal to or higher than conventional resins and, accordingly superior cohesion, a method of preparing the same, and a heat-resistant resin composition including the same.

公开(公告)号：US10266627B2

公开(公告)日：2019-04-23

申请号：US15560897

申请日：2016-11-29

Applicant: LG CHEM, LTD.

Inventor： Joo Byung Chai ,  Yu Sung Jung ,  Jong Beom Kim ,  Chang Sull Kim ,  Young Min Kim ,  Eun Seon Park ,  Tae Young Jeon

IPC: C08F212/10 ,  C08F212/12 ,  C08J3/16 ,  C08L9/06

Abstract: The present disclosure relates to a method of preparing a heat-resistant SAN resin. More particularly, the present disclosure provides a method of preparing a heat-resistant SAN resin enabling provision of superior productivity and improved heat resistance and fluidity without generation of odor during processing, and a heat-resistant SAN resin composition prepared by the method.

公开(公告)号：US20150322255A1

公开(公告)日：2015-11-12

申请号：US14367557

申请日：2013-12-24

Applicant: LG CHEM, LTD.

Inventor： Chang Sull Kim ,  Min Cheol Ju ,  Hyung Sub Lee ,  Hoi In Jeong

IPC: C08L51/00 ,  B01J19/00 ,  B01J19/20

CPC classification number: B01F7/08 ,  B01F7/00425 ,  B01J8/10 ,  B01J19/0066 ,  B01J19/20 ,  B01J2208/00371 ,  B01J2208/0084 ,  B01J2208/00867 ,  B01J2219/00761 ,  B01J2219/182 ,  C08F2/01 ,  C08F236/06 ,  C08F279/04 ,  C08J3/16 ,  C08J2351/04 ,  C08L51/003

Abstract: Disclosed are an apparatus for preparing a polymer latex resin powder in which an efficiency of mixing of steam, a latex, and a coagulant is increased by introducing a non-continuous screw into a reactor that performs coagulation and aging and thus a moisture content of a slurry is decreased and, accordingly, drying efficiency may be enhanced, and a polymer latex resin powder with excellent color and powder characteristics may be prepared using a decreased amount of coagulant and a method of preparing a polymer latex resin powder by using the same.

Abstract translation: 公开了一种制备聚合物胶乳树脂粉末的装置，其中通过将非连续螺杆引入进行凝结和老化的反应器中，从而提高了蒸汽，胶乳和凝结剂的混合效率，从而提高了水分含量 浆料减少，因此可以提高干燥效率，并且可以使用减少量的凝结剂和制备聚合物胶乳树脂粉末的方法制备具有优异的颜色和粉末特性的聚合物胶乳树脂粉末。

公开(公告)号：US11352495B2

公开(公告)日：2022-06-07

申请号：US15775340

申请日：2017-08-02

Applicant: LG CHEM, LTD.

Inventor： Joo Byung Chai ,  Tae Young Jeon ,  Yu Sung Jung ,  Jong Beom Kim ,  Chang Sull Kim ,  Eun Seon Park ,  Young Min Kim

IPC: C08L71/12 ,  C08F279/04 ,  C08L55/02 ,  C08J3/12

Abstract: The present invention relates to a thermoplastic resin. More particularly, the present invention relates to a thermoplastic resin that is a graft copolymer having a seed-shell structure and includes a bimodal seed including a large-diameter rubbery polymer having an average particle diameter of greater than 2,000 Å and 3,500 Å or less and a small-diameter rubbery polymer having an average particle diameter of 500 Å to 2,000 Å; and an aromatic vinyl-vinyl cyan shell, wherein the aromatic vinyl cyan compound is included in an amount of 5% by weight to 28% by weight based on a total weight of the aromatic vinyl-vinyl cyan shell. In accordance with the present invention, a thermoplastic resin having a composition capable of improving graft density, and a thermoplastic resin composition capable of increasing dispersion and having high gloss due to inclusion of the thermoplastic resin are provided.

公开(公告)号：US11286314B2

公开(公告)日：2022-03-29

申请号：US16623744

申请日：2019-04-15

Applicant: LG CHEM, LTD.

Inventor： Joo Byung Chai ,  Yu Sung Jung ,  Jong Beom Kim ,  Chang Sull Kim ,  Eun Seon Park ,  Tae Young Jeon

IPC: C08F2/22 ,  C08F220/44 ,  C08F279/04

Abstract: Provided are a method for preparing a conjugated diene-based polymer and a method for preparing a graft copolymer including the same. The method for preparing a conjugated diene-based polymer includes enlarging a first conjugated diene-based polymer in multiple stages to prepare a second conjugated diene-based polymer, wherein the multi-stage enlargement includes a primary enlargement stage and a secondary enlargement stage, and a weight ratio of acids added in the primary enlargement stage and the secondary enlargement stage is 70:30 to 90:10. A graft copolymer prepared by the above-described method can be used to form a thermoplastic resin molded article excellent in all of plating characteristics, mechanical properties, surface characteristics, colorability, and processability.

公开(公告)号：US11214645B2

公开(公告)日：2022-01-04

申请号：US16767465

申请日：2019-01-23

Applicant: LG CHEM, LTD.

Inventor： Joo Byung Chai ,  Yu Sung Jung ,  Jong Beom Kim ,  Chang Sull Kim ,  Eun Seon Park ,  Tae Young Jeon ,  Young Min Kim

IPC: C08F279/04

Abstract: The present invention relates to a method for preparing a graft copolymer including polymerizing a conjugated diene-based monomer to prepare a small-size conjugated diene-based polymer; enlarging the small-size conjugated diene-based polymer to prepare a large-size conjugated diene-based polymer; and polymerizing the small-size conjugated diene-based polymer, the large-size conjugated diene-based polymer, an aromatic vinyl-based monomer and a vinyl cyan-based monomer to prepare a graft copolymer, wherein a weight ratio of the small-size conjugated diene-based polymer and the large-size conjugated diene-based polymer is 10:90 to 40:60 in preparing the graft copolymer.