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1. 发明公开

EP3118258A1 THERMOPLASTIC RESIN COMPOSITION, PREPARATION METHOD THEREFOR, AND MOLDED PRODUCT COMPRISING SAME 有权
标题翻译：热塑性树脂组合物用于生产和形状的产品，
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.

2. 发明公开

EP4056602A1 METHOD FOR PREPARING POLYMER 审中-实审
公开(公告)号：EP4056602A1
公开(公告)日：2022-09-14
申请号：EP21898639.6
申请日：2021-11-25
申请人： Lg Chem, Ltd.
发明人： HONG, Sung Won , LEE, Hyung Sub , LEE, Dae Woo , JU, Min Cheol , SHIN, Seong Jae , SHIN, Min Seung , KIM, In Soo
IPC分类号： C08F212/08 , C08F220/10 , C08F220/42 , C08F2/00
摘要： The present invention relates to a method of preparing a polymer, which includes: adding a first reaction solution including an aqueous solvent and a monomer mixture including an alkyl-substituted aromatic vinyl-based monomer, an alkyl-unsubstituted aromatic vinyl-based monomer, and a vinyl cyanide-based monomer to a reactor and initiating polymerization; and performing polymerization by continuously adding an alkyl-substituted aromatic vinyl-based monomer to the reactor, wherein the first reaction solution satisfies Expression 1 (see the description of the invention).

3. 发明公开

EP3974458A1 METHOD FOR PREPARING MALEIMIDE-BASED COPOLYMER 有权
公开(公告)号：EP3974458A1
公开(公告)日：2022-03-30
申请号：EP20896323.1
申请日：2020-11-25
申请人： LG Chem, Ltd.
发明人： SHIN, Min Seung , JU, Min Cheol , HONG, Sung Won , KIM, In Soo , LEE, Hyung Sub
IPC分类号： C08F222/40 , C08F222/08 , C08F2/18
摘要： Provided is a method of preparing a maleimide-based copolymer, which comprises adding a monomer mixture including an aromatic vinyl-based monomer and a maleimide-based monomer to an aqueous solution consisting of an aqueous solvent and a first vinyl cyanide-based monomer and performing polymerization.

4. 发明授权

EP3208305B1 METHOD FOR PRODUCING THERMOPLASTIC RESIN 有权
公开(公告)号：EP3208305B1
公开(公告)日：2020-11-18
申请号：EP16844707.6
申请日：2016-09-08
申请人： LG Chem, Ltd.
发明人： HONG, Sung Won , LEE, Hyung Sub , JU, Min Cheol , SHIN, Min Seung , KIM, In Soo
IPC分类号： C08F6/22 , C08L25/16 , C08F212/12 , C08K5/5415 , C08K3/34 , C08L55/02

5. 发明授权

EP3118258B1 THERMOPLASTIC RESIN COMPOSITION, PREPARATION METHOD THEREFOR, AND MOLDED PRODUCT COMPRISING SAME 有权
公开(公告)号：EP3118258B1
公开(公告)日：2019-07-17
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 , C08F279/02 , C08F279/06 , C08L33/12 , C08F6/22

6. 发明公开

EP3208305A1 METHOD FOR PRODUCING THERMOPLASTIC RESIN 有权
标题翻译：生产热塑性树脂的方法
公开(公告)号：EP3208305A1
公开(公告)日：2017-08-23
申请号：EP16844707.6
申请日：2016-09-08
申请人： LG Chem, Ltd.
发明人： HONG, Sung Won , LEE, Hyung Sub , JU, Min Cheol , SHIN, Min Seung , KIM, In Soo
IPC分类号： C08L25/08 , C08L9/08 , C08K5/5415
摘要： The present invention relates to a method of preparing a thermoplastic resin. More particularly, the present invention relates to a method of preparing a thermoplastic resin, the method including a coagulation step of adding a water-soluble silicate compound and a metal salt coagulant to an α-methylstyrene-vinyl cyan compound copolymer latex, followed by coagulation.
In accordance with the present invention, a method of preparing a thermoplastic resin having superior heat resistance by adding an additive during coagulation and aging of α-methylstyrene-vinyl cyan compound copolymer latex while controlling an addition time point of the additive is provided.
摘要翻译：本发明涉及制备热塑性树脂的方法。更具体地说，本发明涉及制备热塑性树脂的方法，该方法包括将水溶性硅酸盐化合物和金属盐凝结剂加入到α-甲基苯乙烯 - 乙烯基氰基化合物共聚物胶乳中，随后凝固的凝固步骤。根据本发明，提供一种在控制添加剂的添加时间的同时通过在α-甲基苯乙烯 - 乙烯基氰化合物共聚物胶乳的凝固和老化期间添加添加剂来制备具有优异耐热性的热塑性树脂的方法。

7. 发明公开

EP4116341A1 METHOD FOR PREPARING COPOLYMER, COPOLYMER PREPARED THEREBY, AND THERMOPLASTIC RESIN COMPOSITION COMPRISING SAME 审中-实审
公开(公告)号：EP4116341A1
公开(公告)日：2023-01-11
申请号：EP21895126.7
申请日：2021-11-18
申请人： Lg Chem, Ltd.
发明人： SHIN, Min Seung , LEE, Hyung Sub , LEE, Dae Woo , JU, Min Cheol , HONG, Sung Won , KIM, In Soo
IPC分类号： C08F212/08 , C08F220/44 , C08F222/40 , C08F2/00
摘要： The present invention relates to a method for preparing a copolymer, a copolymer prepared therefrom, and a thermoplastic resin composition including the copolymer, wherein the method includes introducing and polymerizing an aromatic vinyl-based monomer, a vinyl cyan-based monomer, and an imide-based monomer S10, wherein the imide-based monomer is introduced at once in an amount of 1 wt% to 24 wt% before the start of polymerization, and is continuously introduced in an amount of 76 wt% to 99 wt% from the start of the polymerization.

8. 发明公开

EP3473652A2 PREPARATION METHOD OF THERMOPLASTIC RESIN 有权
公开(公告)号：EP3473652A2
公开(公告)日：2019-04-24
申请号：EP17880046.2
申请日：2017-10-31
申请人： LG Chem, Ltd.
发明人： KIM, In Soo , LEE, Hyung Sub , JU, Min Cheol , SHIN, Min Seung , HONG, Sung Won
IPC分类号： C08F6/22 , C08J3/12 , C08F297/04 , C08L55/02 , C08L25/12
摘要： The present invention relates to a method of preparing a thermoplastic resin. More particularly, the present invention relates to a method of preparing a thermoplastic resin, the method including A) a step of coagulating an emulsion-polymerized latex with an acid; B) a step of treating the coagulated aggregate (slurry) with a base, followed by dehydration; and C) a step of treating the dehydrated wet powder with an acid, followed by dehydration.
In accordance with the present invention, a method of preparing a thermoplastic resin which exhibits reduced gas generation, color improvement, and superior thermal stability is provided.

9. 发明公开

EP3208306A1 THERMOPLASTIC RESIN AND THERMOPLASTIC RESIN COMPOSITION CONTAINING SAME 有权
标题翻译：热塑性树脂和含有该热塑性树脂的热塑性树脂组合物
公开(公告)号：EP3208306A1
公开(公告)日：2017-08-23
申请号：EP16842288.9
申请日：2016-08-31
申请人： LG Chem, Ltd.
发明人： HONG, Sung Won , LEE, Hyung Sub , JU, Min Cheol , SHIN, Min Seung , KIM, In Soo
IPC分类号： C08L25/12 , C08K5/5415
CPC分类号： C08C1/15 , C08F6/22 , C08F212/12 , C08K3/34 , C08L13/02 , C08L25/16 , C08L25/12 , C08F220/44 , C08L55/02
摘要： The present invention relates to a thermoplastic resin. In accordance with the present invention, a thermoplastic resin exhibiting superior heat resistance, gloss, and whiteness while having mechanical properties identical to or higher than those of a conventional thermoplastic resin and a thermoplastic resin composition including the same are provided.
摘要翻译：本发明涉及一种热塑性树脂。根据本发明，提供了具有与常规热塑性树脂和包含其的热塑性树脂组合物相同或更高的机械性能同时具有优异的耐热性，光泽度和白度的热塑性树脂。

10. 发明公开

EP4286429A1 POLYMER PREPARATION METHOD 审中-实审
公开(公告)号：EP4286429A1
公开(公告)日：2023-12-06
申请号：EP23740542.8
申请日：2023-01-17
申请人： LG Chem, Ltd.
发明人： HONG, Sung Won , LEE, Hyung Sub , LEE, Dae Woo , KIM, Woo Ri , JU, Min Cheol , SHIN, Min Seung , KIM, In Soo
IPC分类号： C08F212/10 , C08F2/00 , C08F2/18
摘要： The present invention relates to a method of preparing a polymer, which includes: adding an alkyl-substituted aromatic vinyl-based monomer and a vinyl cyanide-based monomer to a reactor and initiating polymerization; and performing polymerization while continuously adding the alkyl-substituted aromatic vinyl-based monomer and a multifunctional initiator to the reactor, wherein the continuous addition of the alkyl-substituted aromatic vinyl-based monomer and the multifunctional initiator is initiated when a polymerization conversion rate is 10 to 30%, and the continuous addition of the alkyl-substituted aromatic vinyl-based monomer and the multifunctional initiator is terminated when a polymerization conversion rate is 70 to 80%.

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