公开(公告)号：US10717859B2

公开(公告)日：2020-07-21

申请号：US15815520

申请日：2017-11-16

申请人： LG CHEM, LTD.

发明人： Gyu Sun Kim ,  Chang Hun Han ,  Dae Woo Lee ,  Jae Bum Seo ,  Jung Tae Park ,  Eun Jung Choi ,  Byoung Il Kang ,  Da Eun Sung

IPC分类号： C08F2/02 ,  C08F212/12 ,  C08F220/44 ,  C08F222/10 ,  C08L25/16 ,  C08L55/02 ,  C08L25/12 ,  C08F279/04 ,  C08K5/315 ,  C08F285/00 ,  C08K5/14

摘要： The present invention relates to a composition for preparing a SAN copolymer, a SAN copolymer, a preparation method therefor, a heat-resistant ABS resin blend comprising the same, and heat-resistant ABS pellets. Specifically, the present invention provides a composition for preparing a SAN copolymer, the composition comprising a monomer mixture, and ethylene glycol dimethacrylate as a chain extender, wherein the monomer mixture comprises 60 to 75 wt % of an α-methylstyrene monomer and 25 to 40 wt % of an acrylonitrile-based monomer based on the total weight of the monomer mixture; and the ethylene glycol dimethacrylate is contained in an amount of 0.001 to 0.15 parts by weight based on 100 parts by weight of the monomer mixture.

公开(公告)号：US09777088B2

公开(公告)日：2017-10-03

申请号：US15106785

申请日：2015-12-14

申请人： LG CHEM, LTD.

发明人： Byoung Il Kang ,  Eun Jung Choi ,  Da Eun Sung ,  Chang Hun Han

IPC分类号： C08F212/10 ,  C08F279/04 ,  C08L25/12

CPC分类号： C08F212/10 ,  C08F212/12 ,  C08F279/04 ,  C08F2500/01 ,  C08F2800/20 ,  C08L25/12 ,  C08L25/16 ,  C08L2201/08 ,  C08F220/44 ,  C08F220/20 ,  C08L55/02

摘要： Disclosed are a heat-resistant SAN resin, a method of producing the same and a heat-resistant SAN resin composition comprising the same. More specifically, disclosed are a heat-resistant SAN resin produced using ingredients comprising 52 to 78% by weight of alpha-methylstyrene, 20 to 40% by weight of a vinyl cyanide compound and 2 to 8% by weight of hydroxyalkyl (meth)acrylate, a method of producing the same and a heat-resistant SAN resin composition comprising the same. Advantageously, provided are a heat-resistant SAN resin with maintained heat resistance, improved polymerization conversion rate and increased weight average molecular weight, a method of producing the same, and a heat-resistant SAN resin composition containing the same with excellent chemical resistance, superior mechanical properties and good balance between properties.

公开(公告)号：US11505689B2

公开(公告)日：2022-11-22

申请号：US16649116

申请日：2019-03-19

申请人： LG CHEM, LTD.

发明人： Byoung Il Kang ,  Eun Jung Choi ,  Da Eun Sung

IPC分类号： C08L25/12 ,  C08L55/02 ,  C08L9/02 ,  C08L25/14 ,  C08L33/10 ,  C08L9/06 ,  C08L33/08

摘要： Provided is a thermoplastic resin composition that includes: a first copolymer including an unit derived from an aromatic vinyl-based monomer and an unit derived from a vinyl cyan-based monomer; a second copolymer including an unit derived from an alkyl (meth)acrylate-based monomer, an unit derived from an aromatic vinyl-based monomer, and an unit derived from a vinyl cyan-based monomer; a third copolymer including a conjugated diene-based polymer with an average particle diameter of 0.25 to 0.35 μm, an unit derived from an aromatic vinyl-based monomer, and an unit derived from a vinyl cyan-based monomer; and a fourth copolymer including a conjugated diene-based polymer with an average particle diameter of 0.05 to 0.15 μm, an unit derived from an aromatic vinyl-based monomer, and an unit derived from a vinyl cyan-based monomer, and can be used for producing a molded article exhibiting excellent basic properties while being capable of realizing selective transmittance.

公开(公告)号：US10053569B2

公开(公告)日：2018-08-21

申请号：US14909942

申请日：2015-04-08

申请人： LG CHEM, LTD.

发明人： Byoung Il Kang ,  Chang Hun Han ,  Eun Jung Choi ,  Da Eun Sung

IPC分类号： C08L25/16 ,  C08F212/12

CPC分类号： C08L25/16 ,  C08F212/12 ,  C08F220/44 ,  C08F226/06 ,  C08L55/02 ,  C08L51/04

摘要： Provided is a styrene resin composition including α-methyl styrene, acrylonitrile and vinyl imidazole, and having an improved conversion rate while maintaining excellent mechanical and chemical properties, a styrene resin composition including the same, and a styrene resin molded product manufactured therefrom. Accordingly, the heat-resistant styrene copolymer is effective in improving a conversion rate without deformation and mechanical and chemical property decline of the material itself, and as a result, commercialization may be readily accomplished due to enhanced productivity. In addition, the styrene resin molded product manufactured from the styrene resin composition according to the present invention includes the heat-resistant styrene copolymer as a matrix copolymer, and therefore, has excellent impact strength, tensile strength, tensile elongation and flowability while having high heat resistance.

公开(公告)号：US09458313B2

公开(公告)日：2016-10-04

申请号：US14764555

申请日：2014-02-27

申请人： LG CHEM, LTD.

发明人： Jae Bum Seo ,  Chang Hun Han ,  Dae Woo Lee ,  Jung Tae Park ,  Eun Jung Choi ,  Byoung Il Kang ,  Da Eun Sung ,  Gyu Sun Kim

IPC分类号： C08F290/04 ,  C08K5/00 ,  C08G63/48 ,  C08L25/02 ,  C08F20/44 ,  C08F112/02 ,  C08L25/12 ,  C08F2/02 ,  C08F212/10 ,  C08L25/16 ,  C08L55/02

CPC分类号： C08L25/12 ,  C08F2/02 ,  C08F212/10 ,  C08L25/16 ,  C08L55/02 ,  C08F4/36 ,  C08F212/12 ,  C08F220/44 ,  C08F212/08

摘要： Disclosed are a heat-resistant SAN resin, a method of preparing the same, and a heat-resistant ABS resin composition comprising the same. More particularly, a heat-resistant SAN resin comprising 60 to 75 wt % of α-methylstyrene, 25 to 35 wt % of a vinyl cyan compound, and 0 to 10 wt % of an aromatic vinyl compound (except for α-methylstyrene), the heat-resistant SAN resin having a degree of branching of 0.40 to 0.60, a molecular weight of 90,000 to 150,000 g/mol, and a glass transition temperature (Tg) of 124 to 140° C., a method of preparing the same, and a heat-resistant ABS resin composition comprising the same are disclosed.

摘要翻译： 公开了耐热性SAN树脂及其制备方法，以及含有该树脂的耐热性ABS树脂组合物。 更具体地说，包含60至75重量％的α-甲基苯乙烯，25至35重量％的乙烯基青色化合物和0至10重量％的芳族乙烯基化合物（α-甲基苯乙烯除外）的耐热SAN树脂， 其支化度为0.40〜0.60，分子量为90,000〜150,000g / mol，玻璃化转变温度（Tg）为124〜140℃的耐热SAN树脂，其制备方法， 并公开了包含该ABS树脂组合物的耐热ABS树脂组合物。

公开(公告)号：US12006429B2

公开(公告)日：2024-06-11

申请号：US17051740

申请日：2019-09-11

申请人： LG CHEM, LTD.

发明人： Seo Hwa Kim ,  Byoung Il Kang ,  Eun Jung Choi ,  Taek Jun Jung ,  Jeong In Cho ,  Dong Kun Shin

IPC分类号： C08L55/02 ,  C08L25/12 ,  C08L33/20

CPC分类号： C08L55/02 ,  C08L25/12 ,  C08L33/20

摘要： The present invention provides a thermoplastic resin composition which includes: a first copolymer including a core including a conjugated diene-based polymer and a shell including an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit; and a second copolymer including an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit, wherein the first copolymer has a degree of grafting of 32 to 50%, the second copolymer has a weight-average molecular weight of 85,000 to 115,000 g/mol, and the thermoplastic resin composition includes the first copolymer at 30 wt % or less and an oligomer residue at 1.1 wt % or less. Specifically, the thermoplastic resin composition can shorten an injection molding time.

公开(公告)号：US11104785B2

公开(公告)日：2021-08-31

申请号：US16626247

申请日：2019-03-19

申请人： LG CHEM, LTD.

发明人： Byoung Il Kang ,  Eun Jung Choi

IPC分类号： C08L25/12 ,  C08L33/10 ,  C08L55/02

摘要： Provided is a thermoplastic resin composition that includes: a first copolymer including an unit derived from an aromatic vinyl-based monomer and an unit derived from a vinyl cyan-based monomer; a second copolymer having a refractive index of 1.51 to 1.53 and including an unit derived from an alkyl (meth)acrylate-based monomer, an unit derived from an aromatic vinyl-based monomer, and an unit derived from a vinyl cyan-based monomer; and a third copolymer including a conjugated diene-based polymer with an average particle diameter of 0.05 to 0.15 μm, an unit derived from an aromatic vinyl-based monomer, and an unit derived from a vinyl cyan-based monomer, and can be used for producing a molded article capable of realizing selective transmittance.

公开(公告)号：US10174193B2

公开(公告)日：2019-01-08

申请号：US15508472

申请日：2016-06-17

申请人： LG CHEM, LTD.

发明人： Jae Bum Seo ,  Chang Hun Han ,  Dae Woo Lee ,  Jung Tae Park ,  Eun Jung Choi ,  Byoung Il Kang ,  Da Eun Sung ,  Gyu Sun Kim

IPC分类号： C08L25/10 ,  C08L55/02 ,  C08F2/02 ,  C08F2/06 ,  C08F279/02 ,  C08F2/00

摘要： The present invention relates to method for preparing a modified acrylonitrile-butadiene-styrene resin having excellent matteness, impact resistance, and heat resistance, as well as having a low total volatile organic compounds content, and to a modified acrylonitrile-butadiene-styrene resin prepared thereby.

公开(公告)号：US10047179B2

公开(公告)日：2018-08-14

申请号：US14909924

申请日：2015-04-08

申请人： LG CHEM, LTD.

发明人： Byoung Il Kang ,  Chang Hun Han ,  Jae Bum Seo ,  Eun Jung Choi ,  Da Eun Sung

IPC分类号： C08F212/10 ,  C08L25/14 ,  C08F212/12 ,  C08L25/16 ,  C08L51/04 ,  C08L55/02

摘要： Provided is a styrene resin composition including α-methyl styrene, acrylonitrile and t-butyl methacrylate, and having an improved conversion rate while maintaining excellent mechanical and chemical properties, a styrene resin composition including the same, and a styrene resin molded product manufactured therefrom. Accordingly, the heat-resistant styrene copolymer is effective in improving a conversion rate without deformation and mechanical and chemical property decline of the material itself, and as a result, commercialization may be readily accomplished due to enhanced productivity. In addition, the styrene resin molded product manufactured from the styrene resin composition according to the present invention includes the heat-resistant styrene copolymer as a matrix copolymer, and therefore, has excellent impact strength, tensile strength, tensile elongation and flowability while having high heat resistance.

公开(公告)号：US09856373B2

公开(公告)日：2018-01-02

申请号：US14893030

申请日：2014-06-25

申请人： LG CHEM, LTD.

发明人： Byoung Il Kang ,  Chang Hun Han ,  Jae Bum Seo ,  Da Eun Sung ,  Dae Woo Lee ,  Eun Jung Choi

IPC分类号： C08L33/12 ,  C08L53/02 ,  C08F220/14

CPC分类号： C08L53/02 ,  C08F220/14 ,  C08L33/12 ,  C08F2220/1841

摘要： Disclosed is a (meth)acrylate-based resin composition comprising a poly(alkyl(meth)acrylate-phenyl(meth)acrylate) copolymer comprising phenyl(meth)acrylate having excellent surface hardness and a high refractive index, as a base resin and a (conjugated diene (meth)acrylate) graft copolymer having excellent impact absorption efficiency, the (meth)acrylate-based resin composition providing excellent transparency by exhibiting excellent impact resistance even using a small amount of impact modifier. The (meth)acrylate-based resin composition having excellent impact resistance and transparency comprises 1 to 29 wt % of the (conjugated diene-(meth)acrylate) graft copolymer and 71 to 99 wt % of the poly(alkyl(meth)acrylate-phenyl(meth)acrylate) copolymer.