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1.发明授权公开(公告)号：US12076714B2
公开(公告)日：2024-09-03
申请号：US17437907
申请日：2020-09-28
申请人： LG CHEM, LTD.
发明人： Kyung Min Min , Seung Young Park , Sung Kyoung Kim , Sang Cheol Shin , Won Seok Kim , Won Hee Woo
摘要： The present disclosure relates to a method for separating an organozinc catalyst from a polyalkylene carbonate polymerization solution, and the method of the present disclosure includes: stirring and aging a polymerization solution including a polyalkylene carbonate resin, an organozinc catalyst, an alkylene oxide and a polymerization solvent; and filtering the polymerization solution after completing the aging.
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公开(公告)号：US11976164B2
公开(公告)日：2024-05-07
申请号：US17054375
申请日：2019-12-20
申请人： LG CHEM, LTD.
摘要： The present disclosure relates to a method of preparing an organic zinc catalyst through solid phase blending that does not require a solvent and a washing process, and a method of preparing a polyalkylene carbonate resin by using the organic zinc catalyst prepared thereby.
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公开(公告)号：US11254846B2
公开(公告)日：2022-02-22
申请号：US16344138
申请日：2018-05-02
申请人： LG Chem, Ltd.
发明人： Wan Kyu Oh , Gyeong Shin Choi , Seung Young Park
IPC分类号： C09J133/06 , C08K3/04 , C08K3/34 , C08K3/36 , C08K5/14 , C08L9/02 , C08L9/06 , C08L15/00 , C08L25/06 , C08L25/12 , C08L55/02 , C08L63/04 , C09J11/06 , C09J133/10
摘要： The present disclosure relates to an acrylic adhesive composition exhibiting excellent lap shear strength and adhesive strength by including an adhesion enhancer of a specific component.
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公开(公告)号：US11155655B2
公开(公告)日：2021-10-26
申请号：US16637095
申请日：2019-03-21
申请人： LG Chem, Ltd.
发明人： Gyeong Shin Choi , Dong Hyun Jo , Hyun Taek Oh , Won Hee Kim , Seung Young Park
IPC分类号： C08F110/10 , C08F6/02 , C08L23/22 , B01J31/22 , C08G65/20 , B01J31/18 , C08G85/00 , C08F4/69
摘要： The present invention provides an organometal catalyst having a cationic transition metal complex and a borate-based bulky anion, a method for preparing the same, and a method for preparing an oligomer using the same.
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公开(公告)号：US10975196B2
公开(公告)日：2021-04-13
申请号：US16338686
申请日：2018-05-09
申请人： LG CHEM, LTD.
发明人： Seung Young Park , Jung Min Sohn
摘要： The present invention relates to a method for purifying polyalkylene carbonate. More specifically, a method for purifying polyalkylene carbonate is provided, which uses a multistage extraction column having the number of stages of at least 10 stages, using water for effectively removing by-products such as alkylene carbonate generated in a process for producing polyalkylene carbonate resin, thereby controlling the content of by-products to a certain level or less through a continuous operation, particularly, the extraction is performed at room temperature, thereby easily removing by-products in the resin without a high temperature volatilization.
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公开(公告)号：US10759979B2
公开(公告)日：2020-09-01
申请号：US16091670
申请日：2017-12-21
申请人： LG Chem, Ltd.
发明人： Wan Kyu Oh , Seung Young Park , Gyeong Shin Choi
IPC分类号： C09J133/12 , C09J4/06 , C09J133/08 , C09J163/00 , C09J11/04 , C09J11/08 , C08K3/04 , C08F20/18 , C08F279/04 , C08G59/02 , C08K3/34 , C08K3/36
摘要： In the present invention, there is provided an adhesive composition which comprises carbon nanotubes and thus, exhibits high adhesive strength due to excellent lap shear strength.
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公开(公告)号：US10100147B2
公开(公告)日：2018-10-16
申请号：US15303349
申请日：2015-06-12
申请人： LG CHEM, LTD.
发明人： Seong Kyun Kang , Sung-Kyoung Kim , Jun Wye Lee , Eun Kyoung Park , Seung Young Park , Hyeon Choi
摘要： An organic zinc catalyst having more uniform and fine particle size and showing more improved activity in a polymerization process for the preparation of a poly(alkylene carbonate) resin and a preparation method thereof, and a method of preparing a poly(alkylene carbonate) resin using the organic zinc catalyst, are provided. The preparation method of the organic zinc catalyst includes the steps of surface-treating a zinc precursor with a dispersant, and reacting the surface-treated zinc precursor with dicarboxylic acid to form a zinc dicarboxylate-based catalyst.
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8.发明授权公开(公告)号：US09453141B2
公开(公告)日：2016-09-27
申请号：US14382485
申请日：2013-06-21
申请人： LG CHEM, LTD.
发明人： Hyun Ju Cho , Jin-Hwa Seo , Seung Young Park , Jae-Ryoon Kim , Boo-Ho Seo
CPC分类号： C09D169/00 , C08J3/07 , C08J5/18 , C08J2369/00 , C08K5/01 , C08K5/42 , C09D7/63 , C09D7/65
摘要： The present invention relates to a polyalkylene carbonate-based resin film and a manufacturing method thereof. The polyalkylene carbonate-based resin film according to the present invention has biodegradability and complete combustion decomposability to show environment-friendly feature and rubber-like properties. Therefore, the resin film can be applied to various resin molded products requiring elasticity, and in particular, preferably applied to resin molded products such as disposable groves, disposable containers, and disposable rubber molded products.
摘要翻译： 本发明涉及一种聚亚烷基碳酸酯系树脂膜及其制造方法。 本发明的聚亚烷基碳酸酯类树脂膜具有生物降解性和完全的燃烧分解性，具有环保特性和橡胶状特性。 因此，树脂膜可以应用于需要弹性的各种树脂成形体，特别优选用于树脂成形品，例如一次性树脂，一次性容器和一次性橡胶成型品。
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9.发明授权Lactide copolymer, method for preparing same, and resin composition comprising same 有权丙交酯共聚物，其制备方法和包含其的树脂组合物公开(公告)号：US09382386B2
公开(公告)日：2016-07-05
申请号：US14434613
申请日：2013-12-04
申请人： LG CHEM, LTD.
IPC分类号： C08F283/00 , C08G63/91 , C08G81/00 , C08G63/664 , C08G18/48 , C08L75/04 , C08J5/18 , C08G63/82
CPC分类号： C08G81/00 , C08G18/48 , C08G18/4887 , C08G63/664 , C08G63/823 , C08J5/18 , C08J2387/00 , C08L75/04
摘要： The present invention relates to a lactide copolymer having excellent general physical properties such as mechanical physical properties, processability, and the like, and having excellent flexibility to be effectively usable as a packaging material, and the like, a preparing method thereof, and a resin composition including the same, wherein the lactide copolymer includes: two or more block copolymer repeating units in which hard segments of polylactide repeating units are bound to both ends of soft segments of polyether polyol repeating units, the block copolymer repeating units are linked with each other via a urethane linking group induced from a polyvalent isocyanate compound having more than 2 to less than 3 equivalents of an isocyanate group per a molecule, and the polyether polyol repeating unit has a number average molecular weight of 1000 to 10000.
摘要翻译： 本发明涉及具有优异的一般物理性能如机械物理性能，加工性等的丙交酯共聚物，并且具有优异的柔性以有效地用作包装材料等，其制备方法和树脂 包含其的组合物，其中所述丙交酯共聚物包括：两个或更多个嵌段共聚物重复单元，其中聚丙交酯重复单元的硬链段结合到聚醚多元醇重复单元的软链段的两端，所述嵌段共聚物重复单元彼此连接 通过每分子多异氰酸酯化合物多异氰酸酯化合物诱发的氨基甲酸酯连接基，异氰酸酯基数多于2个以上，聚醚多元醇重复单元的数均分子量为1000〜10000。
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公开(公告)号：US20150259474A1
公开(公告)日：2015-09-17
申请号：US14437412
申请日：2014-09-05
申请人： LG CHEM, LTD.
发明人： Yoon Jung Kim , Bo Hyun Seong , Taek Jun Jung , Yun Ki Cho , Seung Young Park
CPC分类号： C08G64/34 , C08G64/0291 , C08G64/38 , C08G64/40 , C08G64/42
摘要： This disclosure relates to polyalkylene carbonate resin that inhibits decomposition of resin resulting from back-biting and the like when heat treated, and thus exhibits improved thermal stability, and a method for preparing the same. The polyalkylene carbonate resin may comprise a basic polyalkylene carbonate based repeat unit, a polyalkyleneglycol based repeat unit, and the polyalkylene carbonate repeat unit crosslinked by a specific compound.
摘要翻译： 本公开内容涉及在热处理时抑制由反咬合等引起的树脂分解，从而表现出改善的热稳定性的聚亚烷基碳酸酯树脂及其制备方法。 聚亚烷基碳酸酯树脂可以包含碱性聚亚烷基碳酸酯基重复单元，聚亚烷基二醇基重复单元和由特定化合物交联的聚亚烷基碳酸酯重复单元。
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