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公开(公告)号：US10683392B2
公开(公告)日：2020-06-16
申请号：US16086415
申请日：2017-09-29
申请人： LG CHEM, LTD.
发明人： Soo Hwan Hwang , Seong Jae Shin , Suk Yung Oh , Jeong Seok Lee , Mi Kyung Kim
IPC分类号： C08G63/85 , C08G63/672 , C08J11/02 , C08G63/90
摘要： The present invention relates to a method for preparing a polyetherester copolymer having excellent economical efficiency by recycling unreacted diol and excellent physical properties. Accordingly, the preparation method may prepare a polyetherester copolymer of high purity having excellent economical efficiency by purifying a byproduct to separate a recycle stream including unreacted diol therefrom, and reusing the recycle stream.
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公开(公告)号：US10308566B1
公开(公告)日：2019-06-04
申请号：US16250811
申请日：2019-01-17
申请人： LG CHEM, LTD.
发明人： Dae Hyeon Kim , Soo Hwan Hwang , Jong Ku Lee , Jeong Seok Lee
摘要： Provided are a separation system for easily recovering normal butene from an olefin fraction including isobutene, isobutane, 1-butene, 2-butene, and normal butane, and a separation process system using the method. Since the separation system may easily convert 1-butene included in the olefin fraction to 2-butene, normal butene may be effectively separated and recovered by factional distillation and each recovered fraction may be easily refluxed even if the use of a reflux system using a refrigerant is reduced or excluded. Thus, economic efficiency may be improved and simultaneously, separation efficiency may be increased.
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公开(公告)号：US20170218140A1
公开(公告)日：2017-08-03
申请号：US15494203
申请日：2017-04-21
申请人： LG CHEM, LTD.
发明人： Seong Yong AHN , Byung Kook Ahn , Soo Hwan Hwang , Kyung Hyun Kim
CPC分类号： C08J5/005 , C01P2004/03 , C01P2004/62 , C01P2004/64 , C08F2/20 , C08F2/44 , C08F267/02 , C08F267/04 , C08F292/00 , C08J3/05 , C08J2331/02 , C08J2401/28 , C08J2427/06 , C08J2429/04 , C08K3/04 , C08K3/22 , C08K3/26 , C08K3/346 , C08K3/36 , C08K9/10 , C08K2003/2241 , C08K2003/265 , C08L27/06 , C08L29/04 , C08L35/00 , C09C1/021 , C09C1/30 , C09C1/3607 , C09C1/42 , C09C1/48 , C08F214/06
摘要： Disclosed are a vinyl chloride based nanocomposite composition and a method of preparing the vinyl chloride based nanocomposite. According to the present invention, a method of preparing a straight vinyl chloride based nanocomposite having a nanomaterial uniformly dispersed therein, by using the vinyl chloride based nanocomposite composition when a vinyl chloride monomer is suspension polymerized in the presence of a protective colloidal agent and a polymerization initiator after preparing a water dispersion suspension using the vinyl chloride based nanocomposite composition based on a hydrophilic composition is provided.
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公开(公告)号：US10227270B2
公开(公告)日：2019-03-12
申请号：US15325329
申请日：2016-04-28
申请人： LG CHEM, LTD.
发明人： Dae Hyeon Kim , Soo Hwan Hwang , Jong Ku Lee , Jeong Seok Lee
摘要： Provided are a separation method for easily recovering normal butene from an olefin fraction including isobutene, isobutane, 1-butene, 2-butene, and normal butane, and a separation process system using the method. Since the separation method according to the present invention may easily convert 1-butene included in the olefin fraction to 2-butene, normal butene may be effectively separated and recovered by factional distillation and each recovered fraction may be easily refluxed even if the use of a reflux system using a refrigerant is reduced or excluded. Thus, economic efficiency may be improved and simultaneously, separation efficiency may be increased.
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公开(公告)号：US09868830B2
公开(公告)日：2018-01-16
申请号：US15494203
申请日：2017-04-21
申请人： LG CHEM, LTD.
发明人： Seong Yong Ahn , Byung Kook Ahn , Soo Hwan Hwang , Kyung Hyun Kim
CPC分类号： C08J5/005 , C01P2004/03 , C01P2004/62 , C01P2004/64 , C08F2/20 , C08F2/44 , C08F267/02 , C08F267/04 , C08F292/00 , C08J3/05 , C08J2331/02 , C08J2401/28 , C08J2427/06 , C08J2429/04 , C08K3/04 , C08K3/22 , C08K3/26 , C08K3/346 , C08K3/36 , C08K9/10 , C08K2003/2241 , C08K2003/265 , C08L27/06 , C08L29/04 , C08L35/00 , C09C1/021 , C09C1/30 , C09C1/3607 , C09C1/42 , C09C1/48 , C08F214/06
摘要： Disclosed are a vinyl chloride based nanocomposite composition and a method of preparing the vinyl chloride based nanocomposite. According to the present invention, a method of preparing a straight vinyl chloride based nanocomposite having a nanomaterial uniformly dispersed therein, by using the vinyl chloride based nanocomposite composition when a vinyl chloride monomer is suspension polymerized in the presence of a protective colloidal agent and a polymerization initiator after preparing a water dispersion suspension using the vinyl chloride based nanocomposite composition based on a hydrophilic composition is provided.
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公开(公告)号：US09714312B2
公开(公告)日：2017-07-25
申请号：US14436720
申请日：2014-09-16
申请人： LG CHEM, LTD.
发明人： Seong Yong Ahn , Byung Kook Ahn , Soo Hwan Hwang , Kyung Hyun Kim
IPC分类号： C08L27/06 , C08L35/00 , C08K3/04 , C08K3/26 , C08K3/36 , C08F267/02 , C08K3/34 , C08K3/22 , C08F267/04 , C08F292/00 , C08K9/10 , C08F2/44 , C08F2/20 , C09C1/42 , C09C1/48 , C09C1/02 , C09C1/30 , C09C1/36
CPC分类号： C08J5/005 , C01P2004/03 , C01P2004/62 , C01P2004/64 , C08F2/20 , C08F2/44 , C08F267/02 , C08F267/04 , C08F292/00 , C08J3/05 , C08J2331/02 , C08J2401/28 , C08J2427/06 , C08J2429/04 , C08K3/04 , C08K3/22 , C08K3/26 , C08K3/346 , C08K3/36 , C08K9/10 , C08K2003/2241 , C08K2003/265 , C08L27/06 , C08L29/04 , C08L35/00 , C09C1/021 , C09C1/30 , C09C1/3607 , C09C1/42 , C09C1/48 , C08F214/06
摘要： Disclosed are a vinyl chloride based nanocomposite composition and a method of preparing the vinyl chloride based nanocomposite. According to the present invention, a method of preparing a straight vinyl chloride based nanocomposite having a nanomaterial uniformly dispersed therein, by using the vinyl chloride based nanocomposite composition when a vinyl chloride monomer is suspension polymerized in the presence of a protective colloidal agent and a polymerization initiator after preparing a water dispersion suspension using the vinyl chloride based nanocomposite composition based on a hydrophilic composition is provided.
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