公开(公告)号：EP3409702A1

公开(公告)日：2018-12-05

申请号：EP18744366.8

申请日：2018-01-02

申请人： LG Chem, Ltd.

发明人： JANG, Seok Goo ,  CHOI, Jeong Su ,  LEE, Won Seok ,  LEE, Roo Da ,  PARK, Sang Hoo ,  OK, Hye Jeong ,  KIM, Ho Hoon ,  SHIM, Hyung Seop ,  YOO, Keun Hoon

IPC分类号： C08F279/02 ,  C08L55/02 ,  C08K5/098 ,  C08F2/24 ,  C08F2/38 ,  C08F2/44

CPC分类号： C08F2/24 ,  C08F2/38 ,  C08F2/44 ,  C08F279/02 ,  C08K5/098 ,  C08L55/02

摘要： The present invention relates to a graft copolymer having excellent thermal stability, a method of preparing the graft copolymer, a thermoplastic resin composition including the graft copolymer, and a molded part including the thermoplastic resin composition. More specifically, the present invention relates to a graft copolymer having a core-shell structure and having excellent thermal stability, which is prepared according to an emulsion polymerization method, in which a metal salt of sorbic acid is included in reactants in a specific amount and is used as an emulsifier. According to the method, thermal stability of a graft copolymer can be improved by using the metal salt of sorbic acid, which can be easily removed in a dehydration process, instead of a conventional emulsifier, which remains in a reaction product after completion of emulsion polymerization and lowers thermal stability of a prepared graft copolymer.
In addition, according to the present invention, since the thermoplastic resin composition of the present invention includes the graft copolymer having excellent thermal stability, the thermoplastic resin composition and the molded part manufactured using the thermoplastic resin composition have excellent physical properties, such as impact strength, fluidity, and transparency. Furthermore, the degree of discoloration that may occur when the resin composition or the molded part is allowed to stay in an injection molding machine or stay at a high temperature for a long period of time may be reduced.

公开(公告)号：EP3026082B1

公开(公告)日：2018-02-28

申请号：EP15784546.2

申请日：2015-06-08

申请人： Lg Chem, Ltd.

发明人： CHOI, Jeong Su ,  KIM, Ho Hoon ,  PARK, Sang Hoo ,  YOO, Keun Hoon ,  LEE, Roo Da ,  LEE, Won Seok ,  JANG, Seok Goo

IPC分类号： C08L51/04 ,  C08L25/14 ,  C08L77/00 ,  C08G69/40 ,  C08F2/44 ,  C08F2/02 ,  C08F279/02 ,  C08L33/04 ,  C08J5/00 ,  C08L33/12 ,  C08L55/02

CPC分类号： C08L51/04 ,  C08F2/02 ,  C08F2/44 ,  C08F279/02 ,  C08G69/40 ,  C08L33/04 ,  C08L33/12 ,  C08L33/20 ,  C08L51/003 ,  C08L55/02 ,  C08L77/00 ,  C08L2201/08 ,  C08L2205/03 ,  C08L2205/06 ,  C08L77/12 ,  C08L25/12 ,  C08L25/14

摘要： Disclosed are a transparent resin composition, which may be used in medical products and food storage containers, having superior chemical resistance and transparency, a method of preparing the same and a molded article manufactured therefrom. More particularly, disclosed are a thermoplastic transparent resin composition having superior chemical resistance and transparency, which comprises (A) a graft copolymer in which a) a conjugated diene rubber latex is graft copolymerized with b) a methacrylate alkyl ester compound or an acrylate alkyl ester compound, c) an aromatic vinyl compound, and d) a vinyl cyano compound; (B) a copolymerized resin in which i) a methacrylate alkyl ester compound or an acrylate alkyl ester compound, ii) an aromatic vinyl compound and iii) a vinyl cyano compound are copolymerized; and (C) a polyether-amide block copolymer, a method of preparing the same, and a molded article manufactured therefrom.

公开(公告)号：EP3235868A1

公开(公告)日：2017-10-25

申请号：EP16873284.0

申请日：2016-12-01

申请人： LG Chem, Ltd.

发明人： JANG, Seok Goo ,  CHOI, Jeong Su ,  YOO, Keun Hoon ,  LEE, Won Seok ,  LEE, Roo Da ,  PARK, Sang Hoo ,  KIM, Ho Hoon ,  SHIM, Hyung Seop

IPC分类号： C08L51/06 ,  C08L33/08 ,  C08K3/00 ,  C08K3/08 ,  C08J5/00

CPC分类号： C08L33/12 ,  A01N59/16 ,  C08J5/00 ,  C08L33/08 ,  C08L33/20 ,  C08L51/06 ,  C08L2201/10 ,  C08L51/04 ,  C08K3/015 ,  C08K9/12

摘要： The present invention relates to a thermoplastic resin composition and a molded article including the same. More particularly, the present invention relates to a thermoplastic resin composition including 100 parts by weight of a base resin that includes an acrylic graft copolymer and an acrylic non-graft copolymer; and greater than 0.3 parts by weight and less than 1.2 parts by weight of a zinc-based antimicrobial agent, and a molded article including the same, wherein the zinc-based antimicrobial agent has an average particle diameter of greater than 3 µm to 30 µm.
In accordance with the present invention, a thermoplastic resin composition providing superior transparency and excellent initial antimicrobial activity and persistent antimicrobial activity while providing the same mechanical properties as existing resin compositions, and a molded article including the same are provided.

摘要翻译： 本发明涉及热塑性树脂组合物和包含其的模塑制品。 更具体地说，本发明涉及一种热塑性树脂组合物，其包含100重量份的包含丙烯酸类接枝共聚物和丙烯酸类非接枝共聚物的基础树脂; 以及大于0.3重量份且小于1.2重量份的锌基抗菌剂和包含其的模制品，其中所述锌基抗菌剂具有大于3μm至30μm的平均粒径 。 根据本发明，提供了一种热塑性树脂组合物，该组合物在提供与现有树脂组合物相同的机械性能的同时提供优异的透明度和优异的初始抗微生物活性和持久的抗微生物活性，以及​​包含该热塑性树脂组合物的模塑制品。

公开(公告)号：EP4209518A1

公开(公告)日：2023-07-12

申请号：EP22833586.5

申请日：2022-06-28

申请人： Lg Chem, Ltd.

发明人： PARK, Jae Hyun ,  LIM, Joong Chul ,  YOO, Keun Hoon ,  LEE, Hyun Min ,  KIM, Gyu Sun

IPC分类号： C08F14/06 ,  C08F2/20 ,  C08F2/44

摘要： The present invention relates to a method for preparing a vinyl chloride-based polymer showing improved melting rate and mechanical properties and low harmfulness, by pre-mixing and injecting a mixed dispersant comprising polyvinyl alcohol of high hydration and a metal carbonate before performing polymerization, and then, polymerizing a vinyl chloride-based monomer, and a vinyl chloride-based polymer prepared through the method.

公开(公告)号：EP3640297A2

公开(公告)日：2020-04-22

申请号：EP18862507.3

申请日：2018-09-20

申请人： LG Chem, Ltd.

发明人： CHOI, Jeong Su ,  LEE, Won Seok ,  LEE, Roo Da ,  LEE, Jong Ju ,  YOO, Keun Hoon ,  JANG, Seok Goo ,  PARK, Sang Hoo ,  OK, Hye Jeong ,  KIM, Ho Hoon ,  SHIM, Hyung Seop

IPC分类号： C08L51/04 ,  C08F279/02

摘要： The present invention relates to a thermoplastic resin composition showing excellent transparency and whitening resistance. The thermoplastic resin composition of the present invention comprises (A) a graft copolymer having a multilayer structure and (B) a thermoplastic copolymer, wherein the graft copolymer having a multilayer structure (A) comprises a core of a conjugated diene-based rubber latex having a weight average particle diameter of 500 Å to 2,000 Å; an intermediate layer; and a graft layer. The glass transition temperature of the intermediate layer is 40°C or less, the glass transition temperature of the graft layer is 80°C or more, and the refractive index difference between the graft copolymer (A) and the thermoplastic copolymer (B) is less than 0.01.

公开(公告)号：EP3225642A1

公开(公告)日：2017-10-04

申请号：EP16870934.3

申请日：2016-11-09

申请人： LG Chem, Ltd.

发明人： LEE, Roo Da ,  CHOI, Jeong Su ,  YOO, Keun Hoon ,  LEE, Won Seok ,  JANG, Seok Goo ,  PARK, Sang Hoo ,  KIM, Ho Hoon ,  SHIM, Hyung Seop

IPC分类号： C08F297/04 ,  C08F212/10 ,  C08F212/08 ,  C08L53/02 ,  C08L25/06

CPC分类号： C08L51/003 ,  C08F212/08 ,  C08F212/10 ,  C08F257/02 ,  C08F293/00 ,  C08L25/12 ,  C08L53/00 ,  C08L53/02 ,  C08L2201/10 ,  C08L2205/02 ,  C08F220/44 ,  C08F220/14 ,  C08L25/06

摘要： The present invention relates to a transparent thermoplastic resin. More particularly, the present invention relates to a transparent thermoplastic resin, including a random copolymerization block prepared by polymerizing 50 to 80 % by weight of an aromatic vinyl compound, 10 to 30 % by weight of a vinyl cyanide compound, and 0 to 15 % by weight of (meth) acrylic acid alkyl ester; and an aromatic vinyl compound block prepared by polymerizing 1 to 10 % by weight of an aromatic vinyl compound, a transparent thermoplastic resin composition including the transparent thermoplastic resin, and methods of preparing the aromatic vinyl compound and transparent thermoplastic resin.

摘要翻译： 本发明涉及透明热塑性树脂。 更具体地说，本发明涉及一种透明热塑性树脂，其包括通过聚合50-80重量％的芳族乙烯基化合物，10-30重量％的氰化乙烯基化合物和0-15重量％的乙烯基化合物而制备的无规共聚嵌段， （甲基）丙烯酸烷基酯; 和通过聚合1至10重量％的芳族乙烯基化合物制备的芳族乙烯基化合物嵌段，包含该透明热塑性树脂的透明热塑性树脂组合物，以及制备芳族乙烯基化合物和透明热塑性树脂的方法。

公开(公告)号：EP3235868B1

公开(公告)日：2020-07-22

申请号：EP16873284.0

申请日：2016-12-01

申请人： LG Chem, Ltd.

发明人： JANG, Seok Goo ,  CHOI, Jeong Su ,  YOO, Keun Hoon ,  LEE, Won Seok ,  LEE, Roo Da ,  PARK, Sang Hoo ,  KIM, Ho Hoon ,  SHIM, Hyung Seop

IPC分类号： C08L33/20 ,  C08L33/08 ,  C08L51/00 ,  C08J5/00 ,  C08K3/00 ,  C08K3/08 ,  C08K9/12 ,  C08L51/04 ,  C08K3/015

公开(公告)号：EP3037474B1

公开(公告)日：2019-06-26

申请号：EP15826125.5

申请日：2015-07-23

申请人： LG Chem, Ltd.

发明人： YOO, Keun Hoon ,  CHOI, Jeong Su ,  LEE, Won Seok ,  JANG, Seok Goo ,  LEE, Roo Da ,  PARK, Sang Hoo ,  KIM, Ho Hoon

IPC分类号： C08L51/04 ,  C08L25/12 ,  C08F279/02 ,  C08F212/10 ,  C08J5/00 ,  C08L33/12 ,  C08F220/18

公开(公告)号：EP3118258A1

公开(公告)日：2017-01-18

申请号：EP15813682.0

申请日：2015-10-15

申请人： LG Chem, Ltd.

发明人： CHOI, Jeong Su ,  JU, Min Cheol ,  SHIN, Min Seung ,  HONG, Sung Won ,  LEE, Hyung Sub ,  YOO, Keun Hoon ,  LEE, Won Seok ,  JANG, Seok Goo ,  LEE, Roo Da ,  PARK, Sang Hoo ,  KIM, Ho Hoon ,  KIM, In Soo

IPC分类号： C08L51/04 ,  C08L33/04 ,  C08L25/14 ,  C08F279/04

CPC分类号： C08L33/12 ,  C08F6/22 ,  C08F279/02 ,  C08F279/06 ,  C08L25/14 ,  C08L33/04 ,  C08L51/04 ,  C08F220/14 ,  C08F212/08 ,  C08F220/44

摘要： Disclosed are a thermoplastic resin composition and a method of preparing the same. More particularly, the present invention relates to a thermoplastic resin composition including 10 to 90% by weight of a graft copolymer resin coagulated by an organic acid or an organic acid salt; and 90 to 10% by weight of a non-graft copolymer resin and having a moist-heat characteristic (Δhaze) of 20 or less, wherein a refractive index difference between the graft copolymer resin and the non-graft copolymer resin is less than 0.01, a method of preparing the same, and a molded product comprising the same.
According to the present disclosure, provided are a thermoplastic resin composition having superior overall property balance, color, and transparency, and being applicable to products that are exposed to high-temperature water or should be sterilized, due to excellent moist-heat resistance thereof, a method of preparing the same, and a molded product comprising the same.

公开(公告)号：EP3848414A1

公开(公告)日：2021-07-14

申请号：EP19856706.7

申请日：2019-09-05

申请人： LG CHEM, LTD.

发明人： CHOI, Jeong Su ,  YOO, Keun Hoon ,  LEE, Won Seok ,  LEE, Roo Da ,  LEE, Jong Ju

IPC分类号： C08L33/08 ,  C08L51/04 ,  C08L25/14 ,  C08K5/11 ,  C08F279/04 ,  C08F279/06 ,  C08K5/00 ,  C08K5/092

摘要： The present invention provides a thermoplastic resin composition which includes: A-1) a first copolymer including a first conjugated diene-based polymer, an alkyl (meth)acrylate-based monomer unit, and an aromatic vinyl-based monomer unit, wherein the first conjugated diene-based polymer has an average particle diameter of 0.05 to 0.2 µm; A-2) a second copolymer including a second conjugated diene-based polymer, an alkyl (meth)acrylate-based monomer unit, and an aromatic vinyl-based monomer unit, wherein the second conjugated diene-based polymer has an average particle diameter of 0.23 to 0.5 µm; B) a third copolymer including an alkyl (meth)acrylate-based monomer unit and an aromatic vinyl-based monomer unit; and C) a plasticizer having a viscosity of 700 to 10,000 cP, wherein the plasticizer is included at 0.3 to 5 wt%. The thermoplastic resin composition is excellent in all of transparency, impact resistance, and flowability.