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公开(公告)号：US11117987B2
公开(公告)日：2021-09-14
申请号：US16297690
申请日：2019-03-10
IPC分类号： C08F36/06 , C08F36/04 , C08F212/14 , C08F290/06 , C08F290/14 , C08F297/02 , C08F297/04 , C08L53/02 , C08K3/013 , C08C19/44 , C07D339/08 , C08F236/10
摘要： Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.
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12.发明申请公开(公告)号：US20200255558A1
公开(公告)日：2020-08-13
申请号：US16863458
申请日：2020-04-30
摘要： Embodiments of 1,4-polybutadiene rubber compositions useful at low temperatures are provided, wherein the 1,4-polybutadiene incorporated therein comprises a cis content of at least 85 to about 92%, a vinyl content of at about 1% to about 5%, and a trans content of about 3 to about 12%, and wherein the 1,4-polybutadiene has an enthalpy of melting ΔHm of about 5 to about 25 J/g° C. as measured via differential scanning calorimetry (DSC).
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13.发明授权公开(公告)号：US10730985B2
公开(公告)日：2020-08-04
申请号：US15847263
申请日：2017-12-19
发明人： Yuan-Yong Yan , Zengquan Qin , Koichi Saito
摘要： Disclosed herein are a functionalized diene monomer-containing polymer containing first and second functionalizing groups, processes for preparing the functionalized polymer, and rubber compositions containing the functionalized polymer. The functionalized polymer contains polymer chains comprises of at least one conjugated diene monomer optionally in combination with at least one vinyl aromatic monomer wherein each polymer chain is functionalized at its chain end with at least the first functionalizing group and is coupled via the first functionalizing group to the second functionalizing group.
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公开(公告)号：US20200031974A1
公开(公告)日：2020-01-30
申请号：US16589043
申请日：2019-09-30
发明人： Joshua P. Abell , Zengquan Qin
IPC分类号： C08F236/06 , C08F4/54 , C08F4/6392 , C07F7/10 , C07F17/00 , C08F297/06 , C08L9/00
摘要： Metallic complexes having indenyl ligands can be used as an ingredient of a catalyst system. The catalyst system can be used in polymerizations of ethylenically unsaturated hydrocarbon monomers that include both olefins and polyenes. Embodiments of the catalyst system can provide interpolymers that include polyene mer and from 40 to 75 mole percent ethylene mer, with a plurality of the ethylene mer being randomly distributed. The catalyst system also can be used in solution polymerizations conducted in C5-C12 alkanes, yielding interpolymers that include at least 10 mole percent ethylene mer.
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公开(公告)号：US10202474B2
公开(公告)日：2019-02-12
申请号：US15260903
申请日：2016-09-09
发明人： Zengquan Qin
IPC分类号： C08F136/06
摘要： A method for producing a polydiene, the method comprising the steps of (i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source; and (ii) polymerizing conjugated diene monomer in the presence of the active catalyst and a catechol compound.
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公开(公告)号：US20170158787A1
公开(公告)日：2017-06-08
申请号：US15371950
申请日：2016-12-07
IPC分类号： C08F136/06
CPC分类号： C08F136/06
摘要： Embodiments of methods of producing 1,4-polybutadiene comprise polymerizing a solution comprising conjugated diene monomer and organic solvent to yield 1,4-polybutadiene having a cis content of between about 92% to about 98%, a vinyl content of about 1% to about 5%, a trans content of about 1 to about 3%, a molecular weight distribution (MWD) of about 3 to about 5, and a Mooney viscosity (ML1+4) at 100° C. of less than 60. The polymerization achieves over an 80% conversion of the conjugated diene monomer when catalyzed with a catalyst comprising at least one nickel compound, at least one aluminum activator compound, and a mixture of BF3.hexanol and BF3.H2O. For the catalyst, the molar ratio of Ni/H2O is from about 0.05 to about 20 and the molar ratio of BF3/H2O is from about 1.8 to about 500.
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公开(公告)号：US09650456B2
公开(公告)日：2017-05-16
申请号：US14384560
申请日：2013-03-12
发明人： Kevin M. McCauley , Zengquan Qin , Steven Luo
IPC分类号： C08F136/06 , C08F36/04 , C08F36/06 , C08F136/04 , C08F2/40
CPC分类号： C08F136/06 , C08F2/40 , C08F36/04 , C08F36/06 , C08F136/04 , C08F4/545
摘要： A method for producing a polydiene, the method comprising the steps of (i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source in the substantial absence of an organosulfide; and (ii) polymerizing conjugated diene monomer in the presence of the active catalyst and an organosulfide.
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公开(公告)号：US20140378630A1
公开(公告)日：2014-12-25
申请号：US14368946
申请日：2012-12-27
IPC分类号： C08F136/06
CPC分类号： C08F136/06 , C08F4/545 , C08F36/04
摘要： A process for preparing a polydiene, the process comprising the steps of: polymerizing conjugated diene monomer with a metallocene complex catalyst system within a polymerization mixture that includes less than 20% by weight of solvent based on the total weight of the polymerization mixture, where the metallocene complex catalyst system includes the combination or reaction product of: (a) metallocene complex, (b) an alkylating agent, and optionally (c) a non-coordinating anion.
摘要翻译： 一种制备聚二烯的方法，该方法包括以下步骤：在聚合混合物内聚合共轭二烯单体与茂金属络合物催化剂体系，其包含基于聚合混合物的总重量小于20重量％的溶剂，其中 茂金属络合物催化剂体系包括以下组合或反应产物：（a）茂金属络合物，（b）烷基化剂和任选的（c）非配位阴离子。
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公开(公告)号：US20140073751A1
公开(公告)日：2014-03-13
申请号：US14116779
申请日：2012-05-08
发明人： Zengquan Qin
CPC分类号： C08F2/02 , C08F2/04 , C08F36/04 , C08F236/10 , C08F4/7098
摘要： The present disclosure is directed towards a solution or bulk polymerization process for preparing high-cis polydienes that utilizes at least one vinyl aromatic compound as a molecular weight regulator. The disclosed solution or bulk polymerization processes are useful for preparing high-cis polydienes with a Mooney viscosity between 30 and 55 while allowing the use of lower amounts of catalyst.
摘要翻译： 本公开涉及用于制备利用至少一种乙烯基芳族化合物作为分子量调节剂的高顺式聚二烯的溶液或本体聚合方法。 所公开的溶液或本体聚合方法可用于制备门尼粘度在30和55之间的高顺式聚二烯，同时允许使用较少量的催化剂。
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公开(公告)号：US20220185931A1
公开(公告)日：2022-06-16
申请号：US17438072
申请日：2020-03-10
发明人： Zengquan Qin , Yuan-Yong Yan
IPC分类号： C08F236/06 , C08F4/54 , C08K3/04 , B60C1/00 , C08F8/30
摘要： Disclosed herein are a modified high cis polydiene polymer, processes for preparing the modified high cis polydiene polymer, and tire rubber compositions containing the modified high cis polydiene polymer. The processes make use of a functionalizing compound of formula I or formula II and a coupling agent to prepare the modified high cis polydiene polymer from a quantity of conjugated diene monomer polymerized using a lanthanide-based catalyst system. The modified high cis polydiene polymer includes at least one polymer chain having a residue from the functionalizing compound and a residue from the coupling agent and can be utilized in tire rubber compositions in combination with other ingredients such as fillers.
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