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公开(公告)号：US11911749B2
公开(公告)日：2024-02-27
申请号：US17890424
申请日：2022-08-18
发明人： Il Gu Jung , Hyo Seung Park , Jun Soo Son , Myung Jin Kim , Jong Chan Kim
CPC分类号： B01J31/189 , B01J31/2234 , C07C2/26 , B01J2231/20 , B01J2531/0208 , B01J2531/62 , C07C2531/24
摘要： Provided are a chromium catalyst precursor, an ethylene oligomerization catalyst including the same, and a method of preparing an ethylene oligomer using the same. More particularly, a chromium catalyst precursor which may oligomerize ethylene with high activity and high selectivity in spite of not using methylaluminoxane (MAO) or modified-methylaluminoxane (MMAO), an oligomerization catalyst including the same, and a method of preparing an ethylene oligomer using the same are provided.
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公开(公告)号：US20230100188A1
公开(公告)日：2023-03-30
申请号：US17890424
申请日：2022-08-18
发明人： Il Gu Jung , Hyo Seung Park , Jun Soo Son , Myung Jin Kim , Jong Chan Kim
摘要： Provided are a chromium catalyst precursor, an ethylene oligomerization catalyst including the same, and a method of preparing an ethylene oligomer using the same. More particularly, a chromium catalyst precursor which may oligomerize ethylene with high activity and high selectivity in spite of not using methylaluminoxane (MAO) or modified-methylaluminoxane (MMAO), an oligomerization catalyst including the same, and a method of preparing an ethylene oligomer using the same are provided.
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公开(公告)号：US20190308158A1
公开(公告)日：2019-10-10
申请号：US16305222
申请日：2018-01-08
发明人： Hyo Seung Park , Woo Sung Jung , In Hyoup Song , Il Gu Jung , Jong Ho Choi
摘要： Provided are a fouling inhibitor and a method of oligomerizing an olefin using the same. More particularly, in the method of oligomerizing an olefin, it is possible to minimize a total amount of polymers produced during a reaction and basically inhibit fouling of the polymers produced during the reaction onto an inner wall of a reactor by injecting a predetermined fouling inhibitor.
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4.发明申请公开(公告)号：US20180079765A1
公开(公告)日：2018-03-22
申请号：US15785830
申请日：2017-10-17
发明人： Il Gu Jung , Ji Su Jeong , Kodiyan Varghese Jobi , Jong Chan Kim , Bun Yeoul Lee , Han Sol Lee , Je Ho Lee , Jeon Koo Lee
CPC分类号： C07F19/00 , B01J23/75 , B01J27/26 , B01J31/12 , B01J31/22 , B01J37/30 , C08G18/44 , C08G18/664 , C08G64/34
摘要： Provided are a double metal cyanide (DMC) catalyst used in copolymerization of an epoxide/carbon dioxide useful for preparing polyurethane, a foaming agent, an elastomer, sealant, a coating material, and the like, and an epoxide/carbon dioxide copolymer prepared using the same.In addition, the present invention provides a double metal cyanide (DMC) catalyst prepared using an ion-exchange resin without washing alcohol, and an epoxide/carbon dioxide copolymer having a high purity, a high selectivity, and a high carbonate content prepared using the same.
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