-
公开(公告)号：US11608396B2
公开(公告)日：2023-03-21
申请号：US17201557
申请日：2021-03-15
发明人： Donna J. Crowther , C. Jeff Harlan , Jackie Lovell , Haiqing Peng
IPC分类号： C08F4/6592 , C08F210/16 , C08J5/18 , C07F17/00 , B01J31/22 , C07F7/08 , C08F110/02 , C08F210/14 , C08F4/659
摘要： Catalyst systems and methods for making and using the same are disclosed. A catalyst composition is provided that includes a catalyst compound supported to form a supported catalyst system, the catalyst compound including: where each of R1, R2, R3, R4, R5, R6, R7 and X are as discussed herein.
-
公开(公告)号：US11518825B2
公开(公告)日：2022-12-06
申请号：US17040166
申请日：2019-03-04
发明人： Wesley R. Mariott , John F. Szul , Haiqing Peng , James M. Farley , Bruce J. Savatsky , Brandon C. Locklear
摘要： Embodiments of the present disclosure are directed towards catalyst formulations including a metallocene and a stearic compound selected from bis 2-hydroxyethyl stearyl amine, aluminum distearate, and combinations thereof, where the metallocene is represented by the following formula: (Formula (I)) wherein each n-PR is n-propyl, and each X is independently CH3, Cl, or F.
-
公开(公告)号：US11377461B2
公开(公告)日：2022-07-05
申请号：US17156786
申请日：2021-01-25
IPC分类号： C07F17/00
摘要： A method comprising synthesizing a cyclic organic compound via reaction of an unsubstituted or substituted cycloheptene with an unsubstituted or substituted acrylic acid in the presence of phosphoric and/or sulfonic acid reagent to make the cyclic organic compound. Also, a method of synthesizing a ligand for a transition metal, and a related substituted ligand-metal complex and catalyst, from the unsubstituted or substituted cycloheptene and unsubstituted or substituted acrylic acid. Also, the cyclic organic compound, ligand, and substituted ligand-metal complex and catalyst synthesized thereby. Also a method of polymerizing an olefin with the catalyst to give a polyolefin, and the polyolefin made thereby.
-
公开(公告)号：US11377460B2
公开(公告)日：2022-07-05
申请号：US17042244
申请日：2019-03-20
发明人： John F. Szul , E. J. Markel , R. Eric Pequeno , Bruce J. Savatsky
IPC分类号： C08F2/00 , C08F210/16 , C08F4/6592 , C07F17/00
摘要： Embodiments of the present disclosure are directed towards methods of adjusting melt index and/or density utilizing a metallocene complex represented by Formula (I): wherein each n-Pr is n-propyl, and each X is independently CH3, CI, Br, or F.
-
公开(公告)号：US11203609B2
公开(公告)日：2021-12-21
申请号：US16613155
申请日：2018-05-16
发明人： C. Jeff Harlan , Ching-Tai Lue
IPC分类号： C07F17/00 , C08F4/6592 , C08F210/16 , C08F4/659
摘要： Embodiments of the present disclosure are directed towards metal complexes that can be utilized to form polymers. As an example, the present disclosure provides a metal complex of Formula I: wherein each Me represents methyl.
-
公开(公告)号：US20210380737A1
公开(公告)日：2021-12-09
申请号：US17276912
申请日：2019-09-10
IPC分类号： C08F210/16 , C08F4/659 , F16L9/12
摘要： A bimodal ethylene-co-1-hexene copolymer composition consisting of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a melt property performance defined by a combination of melt index (5 kg), melt strength, and, optionally, shear thinning properties, and, when in solid form, is characterized by a slow crack growth property performance defined by a combination of strain hardening modulus and accelerated full-notch creep test performance. A pipe consisting of the bimodal ethylene-co-1-hexene copolymer composition. A method of synthesizing the bimodal ethylene-co-1-hexene copolymer composition. A method of making the pipe. A manufactured article, which is not a pipe, comprising the bimodal ethylene-co-1-hexene copolymer composition.
-
公开(公告)号：US11180577B2
公开(公告)日：2021-11-23
申请号：US16469867
申请日：2017-12-06
发明人： Ping Cai , Francois Alexandre , Mark G. Goode
IPC分类号： C08F2/01 , C08F2/34 , C08F4/24 , C08F210/02
摘要： Embodiments of the present disclosure are directed towards methods for rating polymerization processes based upon a first cracking index value and a second cracking index value.
-
公开(公告)号：US11142598B2
公开(公告)日：2021-10-12
申请号：US16541767
申请日：2019-08-15
IPC分类号： C07F17/00 , C08F4/6592 , C08F210/16 , C08F4/659 , C08J5/18 , C08F210/02 , C08F4/76 , C08F2/00 , C08F2/34 , C08L23/08 , C08F210/14 , C08F210/08
摘要： Catalyst systems and methods for making and using the same. A method of methylating a catalyst composition while substantially normalizing the entiomeric distribution is provided. The method includes slurrying the organometallic compound in dimethoxyethane (DME), and adding a solution of RMgBr in DME, wherein R is a methyl group or a benzyl group, and wherein the RMgBr is greater than about 2.3 equivalents relative to the organometallic compound. After the addition of the RMgBr, the slurry is mixed for at least about four hours. An alkylated organometallic is isolated, wherein the methylated species has a meso/rac ratio that is between about 0.9 and about 1.2.
-
公开(公告)号：US11142597B2
公开(公告)日：2021-10-12
申请号：US16346245
申请日：2017-10-25
发明人： Swapnil B. Chandak , Nitin Borse , Ayush A. Bafna , Yi Zhang , Timothy R. Lynn , Roger L. Kuhlman , John F. Szul
IPC分类号： C08F210/02 , C08F210/16 , C08F4/64 , C08F4/6592 , C08F10/02 , C08L23/08 , C08F10/00
摘要： A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.
-
公开(公告)号：US20210261703A1
公开(公告)日：2021-08-26
申请号：US17261605
申请日：2019-07-29
发明人： Bo Liu , Yi Zhang , Ayush A. Bafna , François Alexandre , Robert N. Reib
IPC分类号： C08F210/16 , C08J5/18
摘要： A unimodal ethylene-co-1-hexene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of melt elasticity and complex viscosity ratio (shear thinning) properties. A blown film consisting essentially of the unimodal ethylene-co-1-hexene copolymer. A method of synthesizing the unimodal ethylene-co-1-hexene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-hexene copolymer.
-
-
-
-
-
-
-
-
-
搜索结果
652 条记录 (耗时 0.032 秒)