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公开(公告)号：US20230356195A1
公开(公告)日：2023-11-09
申请号：US18246068
申请日：2021-08-12
发明人： Mee Hye JEONG , Jun Yeong KIM , Da Kyoung YONG , Ji Min HA , Ki Hyun PARK
CPC分类号： B01J23/462 , C07D307/46 , B01J23/02 , B01J23/10 , B01J29/7007 , B01J35/0006 , B01J2523/22 , B01J2523/3725 , B01J2523/821 , B01J2523/25
摘要： Provided is a heterogeneous catalyst for preparing a dicarboxylic acid aromatic heterocyclic compound, the heterogeneous catalyst including an active metal; and a basic metal oxide carrier capable of carrying the active metal and forming a complex by coordinate bonding with the dicarboxylic acid aromatic heterocyclic compound.
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公开(公告)号：US20240360059A1
公开(公告)日：2024-10-31
申请号：US18291317
申请日：2022-07-12
发明人： MI SHIN , Ji Min HA , Mee Hye JEONG , Jun Yeong KIM , Da Kyoung YONG , Ki Hyun PARK
CPC分类号： C07C29/175 , B01J21/04 , B01J23/02 , B01J23/462 , B01J35/394 , C07C35/06 , C07C49/395
摘要： Provided is a catalyst for preparing 1,3-cyclopentanediol by hydrogenation of 4-hydroxy-2-cyclopentenone, the catalyst including: a carrier including α-Al2O3; and an active metal supported on the carrier.
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公开(公告)号：US20240287012A1
公开(公告)日：2024-08-29
申请号：US18292406
申请日：2021-07-28
发明人： Mee Hye JEONG , Jun Yeong KIM , Ji Min HA , Da Kyoung YONG , Ki Hyun PARK
IPC分类号： C07D307/54 , C07D307/46
CPC分类号： C07D307/54 , C07D307/46
摘要： The present invention relates to a method for preparing a dicarboxyl acid aromatic heterocyclic compound and a dicarboxyl acid aromatic heterocyclic compound obtained thereby. According to the present invention, an oxide with improved yield and purity can be produced by an oxidation reaction of a bio-based hydroxyl-free aromatic heterocyclic compound under a heterogeneous catalyst.
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4.发明申请公开(公告)号：US20220356299A1
公开(公告)日：2022-11-10
申请号：US17635739
申请日：2020-08-28
发明人： Mee Hye JEONG , Ji Min HA , Da Kyoung YONG , Ki Hyun PARK
IPC分类号： C08G63/199 , C08G63/183 , C07C45/59 , C07C29/143 , C08G18/76 , C08G18/32 , B01J23/46
摘要： The present invention relates to a polyester or polyurethane polymer comprising a biomass-derived 1,3-cyclopentanediol monomer, and a method for preparing same.
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公开(公告)号：US20240342689A1
公开(公告)日：2024-10-17
申请号：US18290917
申请日：2021-07-28
发明人： Mee Hye JEONG , Jun Yeong KIM , Da Kyoung YONG , Ji Min HA , Ki Hyun PARK
CPC分类号： B01J23/462 , B01J23/34 , B01J23/52 , B01J23/54 , B01J37/0201 , B01J37/04 , B01J37/08 , B01J2231/70
摘要： The present invention relates to a heterogeneous catalyst for making a dicarboxyl acid aromatic heterocyclic compound and a method for preparing a dicarboxyl acid aromatic heterocyclic compound, and according to the present invention, an oxide with improved yield and purity can be produced by an oxidation reaction of a bio-based aromatic heterocyclic compound under a heterogeneous catalyst.
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公开(公告)号：US20230365746A1
公开(公告)日：2023-11-16
申请号：US18246085
申请日：2021-08-12
发明人： Da Kyoung YONG , Mee Hye JEONG , Jun Yeong kIM , Ji Min HA , Eun Ji Kim , Ki Hyun PARK
IPC分类号： C08G63/83
CPC分类号： C08G63/83
摘要： The present invention provides polyester and a method for preparing same, the polyester including a repeating unit derived from dihydroxyalkyl tetrahydrofuran obtained from biomass; and a repeating unit derived from short-branched aliphatic dicarboxylic acid. Thus, the polyester has a carbon reduction effect and may be utilized as a novel biomass polyethylene terephthalate (PET) for packaging, by having excellent transparency, impact resistance, flexibility and elastic modulus compared to conventional PET.
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公开(公告)号：US20230286887A1
公开(公告)日：2023-09-14
申请号：US17769357
申请日：2020-10-29
发明人： Mee Hye JEONG , Da Kyoung YONG , Ji Min HA , Ki Hyun PARK
IPC分类号： C07C29/145 , B01J37/08 , B01J23/46
CPC分类号： C07C29/145 , B01J37/08 , B01J23/462
摘要： The present invention relates to a method for preparing 1,3-cyclopentanediol by adding a ruthenium catalyst, from which the surface oxide layer is removed, to 4-hydroxy-2-cyclopentenone. The method is simple since 1,3-cyclopentanediol can be prepared in a single step through the use of the catalyst, without forming 3-hydroxycyclopentanone, which is a reaction intermediate, and moreover, the method can not only shorten a reaction time, but can also improve a yield of 1,3-cyclopentanediol.
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