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1.
公开(公告)号:US20100022720A1
公开(公告)日:2010-01-28
申请号:US12512183
申请日:2009-07-30
IPC分类号: C08F2/00
CPC分类号: B01J8/1809 , B01J19/0006 , B01J19/0033 , B01J2208/00274 , B01J2219/00006 , B01J2219/00081 , B01J2219/00103 , B01J2219/00108 , B01J2219/002 , B01J2219/00202 , B01J2219/00209 , B01J2219/00218 , B01J2219/00227 , B01J2219/00243 , C08F2/00 , C08F4/65912 , C08F4/65925 , C08F10/00 , C08F10/02 , C08F110/02 , C08F210/16 , C08F2400/02 , C08F2/34 , C08F4/025 , C08F4/65904 , C08F4/6546 , C08F2500/12 , C08F210/14
摘要: Embodiments of our invention relate generally to methods of monitoring and controlling polymerization reactions including reactions producing multimodal polymer products using multiple catalysts in a single reactor. Embodiments of the invention provide methods of rapidly monitoring and controlling polymerization reactions without the need to sample and test the polymer properties. The method uses reactor control data and material inventory data in a mathematical leading indicator function to control the reactor conditions, and thereby the products produced under those conditions.
摘要翻译: 本发明的实施方案一般涉及监测和控制聚合反应的方法,包括在单个反应器中使用多种催化剂产生多峰聚合物产物的反应。 本发明的实施方案提供了快速监测和控制聚合反应而不需要对聚合物性质进行样品和测试的方法。 该方法使用反应堆控制数据和材料清单数据在数学领先指标函数中控制反应器条件,从而在这些条件下生产产品。
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2.
公开(公告)号:US08058366B2
公开(公告)日:2011-11-15
申请号:US12512183
申请日:2009-07-30
CPC分类号: B01J8/1809 , B01J19/0006 , B01J19/0033 , B01J2208/00274 , B01J2219/00006 , B01J2219/00081 , B01J2219/00103 , B01J2219/00108 , B01J2219/002 , B01J2219/00202 , B01J2219/00209 , B01J2219/00218 , B01J2219/00227 , B01J2219/00243 , C08F2/00 , C08F4/65912 , C08F4/65925 , C08F10/00 , C08F10/02 , C08F110/02 , C08F210/16 , C08F2400/02 , C08F2/34 , C08F4/025 , C08F4/65904 , C08F4/6546 , C08F2500/12 , C08F210/14
摘要: Embodiments of our invention relate generally to methods of monitoring and controlling polymerization reactions including reactions producing multimodal polymer products using multiple catalysts in a single reactor. Embodiments of the invention provide methods of rapidly monitoring and controlling polymerization reactions without the need to sample and test the polymer properties. The method uses reactor control data and material inventory data in a mathematical leading indicator function to control the reactor conditions, and thereby the products produced under those conditions.
摘要翻译: 本发明的实施方案一般涉及监测和控制聚合反应的方法,包括在单个反应器中使用多种催化剂产生多峰聚合物产物的反应。 本发明的实施方案提供了快速监测和控制聚合反应而不需要对聚合物性质进行样品和测试的方法。 该方法使用反应堆控制数据和材料清单数据在数学领先指标函数中控制反应器条件,从而在这些条件下生产产品。
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公开(公告)号:US07799877B2
公开(公告)日:2010-09-21
申请号:US10492610
申请日:2002-10-15
CPC分类号: C08F10/02 , C08F4/65904 , C08F4/65916 , C08F210/16 , C08F2400/02 , C08F2/00 , C08F2/34 , C08F210/14 , C08F2500/12
摘要: Methods of monitoring and controlling polymerization reactions are disclosed. The ratio of concentrations of two reactor components are determined in a gas stream of a reactor to obtain a leading indicator function L. The value of L or a function of L, such as a rescaled value or a reciprocal, is compared to a target value, and at least one reactor parameter is adjusted in response to a deviation between L or the function of L and the target value. Monitoring of the leading indicator permits rapid diagnosis of reactor problems, and rapid adjustments of reactor parameters, compared to laboratory analysis of samples of polymer properties.
摘要翻译: 公开了监测和控制聚合反应的方法。 在反应器的气流中确定两个反应器组分的浓度比,以获得前导指示函数L.将L或L的函数(例如重新缩放值或倒数)的值与目标值进行比较 并且响应于L或L的函数与目标值之间的偏差来调整至少一个电抗器参数。 与聚合物性质样品的实验室分析相比,主要指标的监测可以快速诊断反应堆问题,并快速调整反应器参数。
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公开(公告)号:US06870023B2
公开(公告)日:2005-03-22
申请号:US10651135
申请日:2003-08-28
IPC分类号: C08F2/00 , C08F2/34 , C08F10/02 , C08F210/16 , C08F210/00
CPC分类号: C08F10/02 , C08F210/16 , C08F2/34 , C08F2/004 , C08F2500/05 , C08F2500/06
摘要: Reactor wall coatings for polymerization reactors and processes for forming such coatings are disclosed. The reactor wall coatings can have a thickness of at least 100 μm and a molecular weight distribution including a major peak having one or more of an Mw/Mn ratio of less than 10; an Mz/Mw ratio of less than 7; and a maximum value of d(wt %)/d(log MW) at less than 25,000 daltons in a plot of d(wt %)/d(log MW), where MW is the molecular weight in daltons. The reactor wall coatings can be formed in-situ during polymerization, on reactor walls initially free of a reactor wall coating, or having a pre-existing reactor wall coating.
摘要翻译: 公开了用于聚合反应器的反应器壁涂层和用于形成这种涂层的方法。 反应器壁涂层可以具有至少100μm的厚度,并且分子量分布包括具有小于10的Mw / Mn比中的一个或多个的主峰; Mz / Mw比小于7; d(重量%)/ d(对数MW)的曲线图中d(重量%)/ d(logMW)的最大值小于25,000道尔顿,其中MW是道尔顿中的分子量。 反应器壁涂层可以在聚合期间原位形成,最初不含反应器壁涂层的反应器壁上,或具有预先存在的反应器壁涂层。
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公开(公告)号:US07855253B2
公开(公告)日:2010-12-21
申请号:US12490763
申请日:2009-06-24
申请人: Porter C. Shannon , Fred D. Ehrman
发明人: Porter C. Shannon , Fred D. Ehrman
CPC分类号: C08F210/16 , C08F4/65912 , C08F4/65916 , C08F4/65925 , C08F10/00 , C08F4/65904 , C08F210/14 , C08F2500/05 , C08F2500/12 , C08F2500/07 , C08F2500/26 , C08F2500/10 , C08F2500/04 , C08F2500/11
摘要: Articles such as, for example, pipes or bottles, prepared from multimodal polyethylenes possessing a density from 0.940 to 0.965 g/cm3, and an I21 from 4 to 20 dg/min, and comprising a low molecular weight ethylene copolymer having a weight average molecular weight from 5,000 amu to 50,000 amu; and a high molecular weight ethylene copolymer having a weight average molecular weight from 60,000 amu to 800,000 amu, both components having a desirable balance of short chain branching making the multimodal polyethylene suitable for films, pipes, rotomolding applications and blow molding applications.
摘要翻译: 由密度为0.940〜0.965g / cm 3的多峰聚乙烯制备的制品,例如管道或瓶子,I21为4至20dg / min,并且包含具有重均分子量的低分子量乙烯共聚物 重量从5,000 amu到50,000 amu; 和重均分子量为6万am至80万amu的高分子量乙烯共聚物,两种组分具有短链分支的理想平衡,使多峰聚乙烯适用于薄膜,管道,滚塑应用和吹塑应用。
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6.
公开(公告)号:US07238756B2
公开(公告)日:2007-07-03
申请号:US10685607
申请日:2003-10-15
申请人: Fred D. Ehrman , Pradeep P. Shirodkar , Mark Bradley Davis , Daniel P. Zilker, Jr. , Porter C. Shannon
发明人: Fred D. Ehrman , Pradeep P. Shirodkar , Mark Bradley Davis , Daniel P. Zilker, Jr. , Porter C. Shannon
IPC分类号: C08F4/6392 , C08F4/6592
CPC分类号: C08F210/16 , C08F4/65916 , C08F4/65925 , C08F10/00 , Y10S526/905 , C08F4/65904 , C08F4/65912 , C08F2/34 , C08F2/40 , C08F2/005 , C08F2/38 , C08F210/08 , C08F2500/12 , C08F2500/05 , C08F2500/01 , C08F2500/02
摘要: Methods of controlling the flow index and/or molecular weight split of a polymer composition are disclosed. The method of producing a polymer composition in one embodiment comprises incorporating a high molecular weight polymer into a low molecular weight polymer to form the polymer composition in a single polymerization reactor in the presence of polymerizable monomers, a bimetallic catalyst composition and at least one control agent; wherein the control agent is added in an amount sufficient to control the level of incorporation of the high molecular weight polymer, the level of low molecular weight polymer, or both. Examples of control agents include alcohols, ethers, amines and oxygen.
摘要翻译: 公开了控制聚合物组合物的流动指数和/或分子量分数的方法。 在一个实施方案中,制备聚合物组合物的方法包括将高分子量聚合物掺入到低分子量聚合物中以在可聚合单体,双金属催化剂组合物和至少一种对照剂的存在下在单一聚合反应器中形成聚合物组合物 ; 其中控制剂的添加量足以控制高分子量聚合物的掺入水平,低分子量聚合物的含量或两者。 控制剂的实例包括醇,醚,胺和氧。
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公开(公告)号:US06995235B1
公开(公告)日:2006-02-07
申请号:US11120008
申请日:2005-05-02
申请人: Fred D. Ehrman , Rainer Kolb , Chi-I Kuo , Porter C. Shannon , Keith W. Trapp
发明人: Fred D. Ehrman , Rainer Kolb , Chi-I Kuo , Porter C. Shannon , Keith W. Trapp
IPC分类号: C08J5/18
CPC分类号: C08F210/16 , C08J5/18 , C08J2323/08 , Y10S526/901 , Y10S526/919 , C08F2/34 , C08F210/14 , C08F2500/07 , C08F2500/12 , C08F2500/26
摘要: Films and methods of forming films comprising first combining in a reactor olefins, a catalyst composition and an activator; wherein the activator is present from less than 50 wt % in a diluent by weight of the activator and diluent; followed by isolating a polyolefin having a density of from 0.940 to 0.980 g/cm3; and finally, extruding the polyolefin into a film having a gel count of less than 200 gels/m2.
摘要翻译: 形成膜的膜和方法包括首先在反应器中合并烯烃,催化剂组合物和活化剂; 其中活化剂以活化剂和稀释剂的重量计在稀释剂中的少于50重量%存在; 然后分离密度为0.940至0.980g / cm 3的聚烯烃; 最后将聚烯烃挤出成凝胶计数小于200凝胶/ m 2的薄膜。
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公开(公告)号:US20090258995A1
公开(公告)日:2009-10-15
申请号:US12490763
申请日:2009-06-24
IPC分类号: C08L23/04
CPC分类号: C08F210/16 , C08F4/65912 , C08F4/65916 , C08F4/65925 , C08F10/00 , C08F4/65904 , C08F210/14 , C08F2500/05 , C08F2500/12 , C08F2500/07 , C08F2500/26 , C08F2500/10 , C08F2500/04 , C08F2500/11
摘要: Articles such as, for example, pipes or bottles, prepared from multimodal polyethylenes possessing a density from 0.940 to 0.965 g/cm3, and an I21 from 4 to 20 dg/min, and comprising a low molecular weight ethylene copolymer having a weight average molecular weight from 5,000 amu to 50,000 amu; and a high molecular weight ethylene copolymer having a weight average molecular weight from 60,000 amu to 800,000 amu, both components having a desirable balance of short chain branching making the multimodal polyethylene suitable for films, pipes, rotomolding applications and blow molding applications.
摘要翻译: 由密度为0.940〜0.965g / cm 3的多峰聚乙烯制备的制品,例如管道或瓶子,I21为4至20dg / min,并且包含具有重均分子量的低分子量乙烯共聚物 重量从5,000 amu到50,000 amu; 和重均分子量为6万am至80万amu的高分子量乙烯共聚物,两种组分具有短链分支的理想平衡,使多峰聚乙烯适用于薄膜,管道,滚塑应用和吹塑应用。
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公开(公告)号:US07595364B2
公开(公告)日:2009-09-29
申请号:US11296104
申请日:2005-12-07
CPC分类号: C08F210/16 , C08F4/65912 , C08F4/65916 , C08F4/65925 , C08F10/00 , C08F4/65904 , C08F210/14 , C08F2500/05 , C08F2500/12 , C08F2500/07 , C08F2500/26 , C08F2500/10 , C08F2500/04 , C08F2500/11
摘要: Multimodal polyethylenes possessing a density from 0.940 to 0.965 g/cm3, and an I21 from 4 to 20 dg/min, and comprising a low molecular weight ethylene copolymer having a weight average molecular weight from 5,000 amu to 50,000 amu; and a high molecular weight ethylene copolymer having a weight average molecular weight from 60,000 amu to 800,000 amu, both components having a desirable balance of short chain branching making the multimodal polyethylene suitable for films, pipes, rotomolding applications and blow molding applications.
摘要翻译: 密度为0.940〜0.965g / cm3,I21为4〜20dg / min的多峰聚乙烯,其重均分子量为5,000〜5万amu的低分子量乙烯共聚物; 和重均分子量为6万am至80万amu的高分子量乙烯共聚物,两种组分具有短链分支的理想平衡,使多峰聚乙烯适用于薄膜,管道,滚塑应用和吹塑应用。
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公开(公告)号:US07393916B2
公开(公告)日:2008-07-01
申请号:US11264567
申请日:2005-11-01
IPC分类号: C08F6/00
CPC分类号: C08F6/26 , C08L23/06 , C08L2205/02 , C08L2205/025 , C08L2308/00 , C08L2666/06
摘要: A process of producing a polyolefin, in one embodiment a polyethylene, and in a preferred embodiment a bimodal polyethylene comprising a high molecular weight component and a low molecular weight component, the process comprising providing a polyolefin having an I21 value of from 2 to 100 g/10 min and a density of from 0.91 to 0.97 g/cm3; followed by forming a melt of the polyolefin and passing the polyolefin through one or more active screen filter(s) having a mesh size of from 70 to 200 micron at a mass flux of from 5 to 100 lbs/hr/square inch; and isolating the polyolefin having passed through the screen filter.
摘要翻译: 一种制备聚烯烃的方法,在一个实施方案中为聚乙烯,在优选实施方案中为包含高分子量组分和低分子量组分的双峰聚乙烯,该方法包括提供具有I 21 >值为2至100g / 10分钟,密度为0.91至0.97g / cm 3; 随后形成聚烯烃的熔体并使聚烯烃通过一个或多个筛孔尺寸为70至200微米的活性筛网过滤器,质量通量为5至100磅/小时/平方英寸; 并分离通过筛网过滤器的聚烯烃。
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