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1.
公开(公告)号:US20190091670A1
公开(公告)日:2019-03-28
申请号:US15745388
申请日:2016-07-15
IPC分类号: B01J29/85 , B01J35/02 , B01J29/83 , B01J29/78 , B01J29/76 , B01J29/14 , B01J29/16 , B01J29/03 , B01J27/232 , B01J37/03 , C08F4/659 , C08F4/02 , C08F110/02 , C08F210/16
摘要: A catalyst system comprises an activated solid support material and having, on its surface, one or more catalytic transition metal complexes.
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公开(公告)号:US11053269B2
公开(公告)日:2021-07-06
申请号:US16099855
申请日:2017-05-10
发明人: Dermot O'Hare , Jean-Charles Buffet , Jessica Lamb , Tossapol Khamnaen , Manutsavin Charernsuk , Thawesak Parawan , Sumate Charoenchaidet
摘要: Unsymmetrical metallocene compounds based on cyclopentadienyl ligands are disclosed, as well as catalytic compositions comprising the compounds supported on solid support materials. The compounds and compositions are useful as catalysts in the polymerisation of olefins. In particular, the compounds and compositions are useful catalysts in the preparation of low molecular weight polyethylene (e.g. polyethylene wax) and copolymers formed from the polymerisation of ethylene and other α-olefins.
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公开(公告)号:US20190092644A1
公开(公告)日:2019-03-28
申请号:US15745375
申请日:2016-07-15
IPC分类号: C01B39/02 , C01B39/54 , C01B39/20 , C01B39/26 , C01B39/14 , C01B39/46 , C01B37/02 , C01F7/00
摘要: Core @ layered double hydroxide shell materials of the invention have the formula: Tp@{[Mz+(1−x)M′xy+(OH)2]a+(Xn−)a/n·bH2O·c(AMO-solvent)}q wherein T is a solid, porous, inorganic oxide-containing framework material, Mz+ is a metal cation of charge z or a mixture of two or more metal cations each independently having the charge z; M′y+ is a metal cation of charge y or a mixture of two or more metal cations each independently having the charge y; z=1 or 2; y=3 or 4; 0 0; q>0; Xn− is an anion; with n>0; a=z(1−x)+xy−2; and AMO-solvent is an organic solvent which is completely miscible with water.Also disclosed are the products obtained by calcining the core @ layered double hydroxide shell materials which calcination products are core @ mixed metal oxide materials having the formula Tp@[{Mz+1−xM′y+xOw]pŸ] wherein T is a solid, porous, inorganic oxide-containing framework material, Mz+1−xM′y+xOw is a mixed metal oxide, or mixture of mixed metal oxides, which may be crystalline or non-crystalline, wherein Mz+ and M′y+ are different charged metal cations; Mz+ is a metal cation of charge z or a mixture of two or more metal cations each independently having the charge z; M′y+ is a metal cation of charge y or a mixture of two or more metal cations each independently having the charge y; z is 1 or 2; y is 3 or 4; 0 0; p>0 and q>0; Ÿ is the residue of an Xn− anion in which n>0.
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公开(公告)号:US20210371754A1
公开(公告)日:2021-12-02
申请号:US17283071
申请日:2019-10-08
摘要: A catalytic process for the deoxygenation of an organic substrate, such as a biomass or bio-oil, is described. The catalytic process is conducted in the presence of a gaseous mixture containing both hydrogen and nitrogen. The presence of nitrogen in the gaseous mixture gives rise inter-aliato increased catalytic activity and/or increased selectivity for aromatic reaction products.
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公开(公告)号:US20200317829A1
公开(公告)日:2020-10-08
申请号:US16758288
申请日:2018-11-05
IPC分类号: C08F4/659 , C08F4/642 , C08F4/6592 , C08F210/02
摘要: Solid support materials are described for use as supports for olefin polymerisation catalysts. Also described is a process for the preparation of the solid support materials and the use of the solid support materials as supports in olefin polymerisation reactions.
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公开(公告)号:US20200317828A1
公开(公告)日:2020-10-08
申请号:US16758287
申请日:2018-11-05
IPC分类号: C08F4/659 , C08F210/02 , C08G79/10 , C08F4/642
摘要: Modified solid polymethylaluminoxanes are described for use as support materials for olefin polymerisation catalysts. The modified solid polymethylaluminoxanes have higher specific surface areas than their unmodified analogues. Also described is a process for the preparation of the modified solid polymethylaluminoxanes and the use of the modified solid polymethylaluminoxanes as support materials in olefin polymerisation reactions.
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公开(公告)号:US20190071462A1
公开(公告)日:2019-03-07
申请号:US16146275
申请日:2018-09-28
IPC分类号: C07F17/00 , C07C29/143 , C08F4/6592 , C07C45/69 , C07C45/45 , C07C2/86 , C07C1/24 , C07C49/67 , C07C13/465 , C07C35/32 , C08F10/02
摘要: The present invention relates to a new process for the synthesis of 2,3,4,5,6,7-substituted indenes, which are useful precursors for the formation of certain ansa-metallocene catalysts.
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公开(公告)号:US20190270891A1
公开(公告)日:2019-09-05
申请号:US16461246
申请日:2017-11-15
发明人: Dermot O'Hare , Jean-Charles Buffet , Chunping Chen , Kanittika Ruengkajorn , Anchelee Wongariyakawee
摘要: Surface-modified layered double hydroxides (LDHs) are disclosed, as well as processes by which they are made, and uses of the LDHs in composite materials. The surface-modified LDHs of the invention are more organophilic than their unmodified analogues, which allows the LDHs to be incorporated in a wide variety of materials, wherein the interesting functionality of LDHs may be exploited.
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公开(公告)号:US20190152794A1
公开(公告)日:2019-05-23
申请号:US16308592
申请日:2017-05-25
IPC分类号: C01F7/00
摘要: Layered double hydroxides (LDHs) are disclosed, as well as methods by which they may be manufactured. The LDHs are subjected to a solvent treatment step during manufacture, which confers high surface area and pore volume properties to the LDHs. The particular solvents used in the preparation of the LDHs renders allows for an overall more efficient and environmentally-friendly manufacturing process.
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10.
公开(公告)号:US10221259B2
公开(公告)日:2019-03-05
申请号:US15541663
申请日:2016-01-06
IPC分类号: C08F4/02 , C08F4/6592 , C08F10/02 , C08F4/659 , B01J37/03 , B01J37/06 , B01J37/34 , B01J21/08 , B01J27/236 , B01J35/00 , B01J35/02 , B01J35/08 , B01J35/10 , B01J31/16 , B01J31/22
摘要: A catalyst system is provided which comprises a solid support material having, on its surface, one or more catalytic transition metal complex wherein the solid support material comprises SiO2@AMO-LDH microspheres having the formula I: (i) wherein, Mz+ and M′y+ are two different charged metal cations; z=1 or 2; y=3 or 4; 0 0.01 and 0 q>0; Xn− is an anion with n>0, preferably 1−5a=z(1−x)+xy−2; and the AMO-solvent is an 100% aqueous miscible organic solvent. Preferably, M′ in the formula I is Al. Preferably, M in the formula I is Li, Mg or Ca. The catalyst system has use in the polymerization and/or copolymerization of at least one olefin to produce a homopolymer and/or copolymer.
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