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1.发明公开公开(公告)号：US20240336715A1
公开(公告)日：2024-10-10
申请号：US18746829
申请日：2024-06-18
IPC分类号： C08F210/18 , C08L23/16
CPC分类号： C08F210/18 , C08L23/16 , C08L2205/025
摘要： Disclosed herein are EPDM-diene copolymers that have a low molecular weight and are liquid at room temperature. In a specific embodiment, the method of making the copolymer includes: adding a solvent to a reactor; adding a propylene and a catalyst mixture to the solvent in the reactor to make a first reaction mixture, where the catalyst mixture includes: one or more catalysts, one or more cocatalysts, and one or more catalyst reactivators; contacting an ethylene to the first reaction mixture to make a second reaction mixture; and contacting a vinyl norbornene to the second reaction mixture to make a copolymer, where the copolymer has a molecular weight from about 2,500 g/mol to about 1,000,000 g/mol, and where the copolymer has a viscosity from about 1,000 cP to about 2,500,000 cP at 100° C.
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公开(公告)号：US12065523B2
公开(公告)日：2024-08-20
申请号：US17599723
申请日：2020-03-27
发明人： Robert D. J. Froese , Teresita Kashyap , Oscar D. Redwine , Daniel J. Arriola , Robert L. Sammler , Cornelis F. J. Den Doelder
IPC分类号： C08F210/18
CPC分类号： C08F210/18
摘要： Embodiments of this disclosure include polymers comprising the polymerized product of ethylene, at least one diene comonomer, and optionally at least one C3 to C14 comonomer. The polymer comprises tri-functional long-chain branches resulting from the diene that occur at a frequency of at least 0.03 per 1000 carbon atoms of the polymer. The diene has a structure according to formula (I):
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公开(公告)号：US11912799B2
公开(公告)日：2024-02-27
申请号：US17280303
申请日：2019-09-27
IPC分类号： C08F210/18 , C08F210/16
CPC分类号： C08F210/16 , C08F210/18
摘要： Ethylene-based polymers comprise reaction products of polymerizing ethylene monomer, at least one diene or polyene comonomer, and optionally at least one C3 to C14 comonomer under defined polymerization reaction conditions, the ethylene-based polymer having: an Mw/Mw0 greater than 1.20. The Mw0 is the initial weight-average molecular weight of a comparative ethylene-based polymer by gel permeation chromatography. The comparative ethylene-based polymer being a reaction product of polymerizing ethylene monomer and all C3 to C14 comonomers present in the ethylene-based polymer, if any, without the at least one polyene comonomer, under the defined polymerization reaction conditions; and a molecular weight tail quantified by an MWD area metric, ATAIL, and ATAIL is less than or equal to 0.04 as determined by gel permeation chromatography using a triple detector.
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公开(公告)号：US11905348B2
公开(公告)日：2024-02-20
申请号：US16979998
申请日：2018-03-20
IPC分类号： C08F210/18 , B60C1/00 , C08F4/6592 , C08K3/36 , C08L9/06 , C08L23/16
CPC分类号： C08F210/18 , B60C1/0008 , B60C1/0016 , B60C1/0025 , C08F4/6592 , C08K3/36 , C08L9/06 , C08L23/16 , B60C2001/005
摘要： An object of the present invention is to provide a novel ethylene/α-olefin/non-conjugated polyene copolymer containing a certain non-conjugated polyene such as VNB as a copolymerization component, having a low long-chain branching content, excellent in cure characteristics in the case of crosslinking by using peroxide, and having good processability. The ethylene/α-olefin/non-conjugated polyene copolymer according to the present invention has constitutional units derived from ethylene (A), an α-olefin (B) having 3 to 20 carbon atoms, and a non-conjugated polyene (C) having a total of two or more partial structures selected from the group consisting of the following general formulas (I) and (II) in a molecule, and satisfies certain requirements.
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公开(公告)号：US20230331884A1
公开(公告)日：2023-10-19
申请号：US17796539
申请日：2021-03-15
IPC分类号： C08F210/18
CPC分类号： C08F210/18 , C08F2420/04 , C08F2500/05
摘要： A copolymer comprising repeating units derived from ethylene, at least one C3-C20-α-olefin, at least one non-conjugated diene, and at least one dual polymerizable diene, wherein the copolymer has
(i) an intensity ratio D of ≤0.5 and
(ii) a molecular weight distribution (MWD)≥R, wherein R depends on the branching index g′(III) of the copolymer and
wherein R is −27.7 times g′(III)+29.2, when g′(III) is ≤0.90; and R is 4.3 when g′(III) is >0.90 and up to 0.99.
Also provided is a catalyst composition for making such copolymers containing at least two different metal complexes, a process for making the catalyst composition, a process for making the copolymer and to articles obtained with the copolymer.-
公开(公告)号：US20190153206A1
公开(公告)日：2019-05-23
申请号：US16099746
申请日：2017-05-11
CPC分类号： C08L23/16 , C08F210/16 , C08F210/18 , C08L2205/03 , C09K3/10 , C09K2200/0405 , C09K2200/0607 , C08L91/00
摘要： A rubber composition, comprising i) an ethylene-α-olefin-non-conjugated-diene copolymer having—a Mooney viscosity ML (1+8) at 150 ° C. ≥85 MU and—an ethylene content≤63 wt. %—the diene content is 4 to 8% by weight of the ethylene-a-olefin-non-conjugated-diene copolymer i), —the non-conjugated diene is a combination of 5-ethylidene-2-norbornene (ENB) and 5-vinylnorbornene (VNB), —the ethylene-α-olefin-non-conjugated-diene copolymer i) has an amount of VNB between 0.05 and 1 wt. %, and has a Mw of at least 400,000 g/mol and, ii) an extender oil of 10 to 40 phr based on the copolymer i) with the sum of the EPDM copolymer i) and the oil ii) amounting to at least 95 wt. % of the composition.
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公开(公告)号：US20180237553A1
公开(公告)日：2018-08-23
申请号：US15751616
申请日：2016-08-08
发明人： ALEXANDRA BERTHOUD , GERARDUS HENRICUS JOSEPHUSS VAN DOREMAELE , RICHARD THOMAS WILLIAM SCOTT , FRANCISCO PEREZ , RAFFAELE BERNARDO
IPC分类号： C08F4/6592 , C08F210/18 , C08F210/06 , C08F236/20 , B01J31/22
CPC分类号： C08F4/6592 , B01J31/2295 , B01J2231/12 , C08F4/65925 , C08F210/06 , C08F210/18 , C08F236/20 , C08F2420/03 , C08F2420/04 , C08F2500/03 , C08F4/6428 , C08F4/65912
摘要： A catalyst system comprising a supported catalyst containing a) a solid support, which is a solid methylaluminoxane composition wherein: i) the aluminum content is in the range of 36 to 41 wt % and ii) the mole fraction of methyl groups derived from the trimethylaluminum component relative to the total number of moles of methyl groups is 12 mol % or lower and b) a catalyst thereon which is a metal complex of the formula (1) CyLMZp (1), wherein M is titanium Z is an anionic ligand, p is number of 1 to 2, preferably 2, Cy is a cyclopentadienyl-type ligand and L is an amidinate ligand of the formula (2) wherein the amidine-containing ligand is covalently bonded to the metal M via the imine nitrogen atom, and Sub1 is a substituent comprising a group 14 atom through which Sub 1 is bonded to the imine carbon atom and Sub2 is a substituent comprising a heteroatom of group, through which Sub2 is bonded to the imine carbon atom.
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公开(公告)号：US10047178B2
公开(公告)日：2018-08-14
申请号：US15426670
申请日：2017-02-07
IPC分类号： C08F210/18 , C08F6/02 , C08F2/04 , C08F6/00 , C08F210/02
CPC分类号： C08F210/18 , C08F6/001 , C08F6/02 , C08F210/06 , C08F236/20 , C08F2500/25 , C08F2500/26 , C08F2/42 , C08L23/16
摘要： This disclosure relates to a process for polymerization, and in particular to minimizing undesired polymerization reactions downstream of a polymerization reaction zone, for instance by use of a quenching agent that enables fast reaction rates with active polymerization catalyst in the polymerization effluent, so as to quench the catalyst quickly, thereby preventing uncontrolled polymerization reactions. A preferred quenching agent is methanol. Also provided are means for treating polymer recycle streams containing oxygenates, which may result from the use of such quench agents, particularly in polymerization processes including polyene (e.g., diene) monomers.
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公开(公告)号：US20180223022A1
公开(公告)日：2018-08-09
申请号：US15749866
申请日：2016-08-17
发明人： Gabor Kiss , Jo Ann M. Canich , Guy J. Wouters , Robert P. Reynolds , Rainer Kolb , David J. Lohse , Florin Barsan
IPC分类号： C08F210/18
CPC分类号： C08F210/18 , C08F4/65908 , C08F4/65912 , C08F4/65927 , C08F210/06 , C08F236/20 , C08F2500/25 , C08F2500/09
摘要： Branched ethylene-propylene-diene elastomers (bEPDM) and processes for making the bEPDM's comprising combining a catalyst precursor and an activator at a temperature within a range from 90° C. to 160° C. with ethylene, a C3 to C12 α-olefin, a non-conjugated diene, and a dual-polymerizable diene, where the catalyst precursor is a metallocene catalyst precursor, preferably according to one of various structures including any two ligands selected from cyclopentadienyl ligands and ligands isolobal to the cyclopentadienyl group.
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公开(公告)号：US09809703B2
公开(公告)日：2017-11-07
申请号：US14368980
申请日：2012-12-27
CPC分类号： C08L23/16 , C08L23/0807 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08F210/16 , C08F210/14 , C08F2500/03 , C08F2500/12 , C08F210/18 , C08F210/06 , C08F236/20 , C08F2500/25
摘要： The invention provides a composition comprising a first composition comprising the following: A) a first ethylene/α-olefin interpolymer that has a weight average molecular weight (Mw) greater than 90,000 g/mole and a MWD less than, or equal to 3, each as determined by conventional GPC; B) a second ethylene/α-olefin interpolymer; and wherein the first composition has a number average molecular weight (Mn) less than 10,000 g/mole, as determined by conventional GPC; and wherein the α-olefin of first interpolymer is the same as the α-olefin of the second interpolymer.
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