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1. 发明申请

WO2019027587A1 POLYETHYLENE COMPOSITIONS AND FILMS PREPARED THEREFROM 审中-公开
公开(公告)号：WO2019027587A1
公开(公告)日：2019-02-07
申请号：PCT/US2018/039081
申请日：2018-06-22
申请人： EXXONMOBIL CHEMICAL PATENTS INC.
发明人： LI, Dongming , LUE, Ching-Tai , SILVA, Adriana S. , HOLTCAMP, Matthew W. , McCULLOUGH, Laughlin G. , SANDERS, David F. , BEDOYA, Matthew S.
IPC分类号： C08F210/16 , C08J5/18 , C08L23/08
摘要： A polyethylene composition comprising from about 0.5 to about 20 wt% of alpha-olefin derived units other than ethylene-derived units, with the balance including ethylene-derived units, total internal unsaturations (Vy1+Vy2+T1) of from about 0.10 to about 0.40 per 1000 carbon atoms, an MI of from about 0.1 to about 6 g/10 min, an HLMI of from about 5.0 to about 40 g/10 min, a density of from about 0.890 to about 0.940 g/ml, a Tw 1 -Tw 2 value of from about -25 to about -20°C, an Mw 1 /Mw 2 value of from about 1.2 to about 2.0, an Mw/Mn of from about 4.5 to about 12, an Mz/Mw of from about 2.0 to about 3.0, an Mz/Mn of from about 7.0 to about 20, and a g'(vis) greater than 0.90.

2. 发明申请

WO2020092597A1 ON-LINE ADJUSTMENT OF CATALYSTS BY TRIM AND OLEFIN POLYMERIZATION 审中-公开
公开(公告)号：WO2020092597A1
公开(公告)日：2020-05-07
申请号：PCT/US2019/058901
申请日：2019-10-30
申请人： EXXONMOBIL CHEMICAL PATENTS INC.
发明人： STEVENS, Kevin A. , SANDERS, David F. , HOLTCAMP, Matthew W. , HARLAN, Charles J. , YE, Xuan , SILVA, Adriana S. , BEDOYA, Matthew S. , OLSON, Joshua P.
IPC分类号： C08F2/34 , C08F4/659 , C08F210/16 , C08L23/08
摘要： In an embodiment, a method for producing a polyolefin includes contacting a first composition and a second composition in a line to form a third composition, wherein: the first composition comprises a contact product of a first catalyst, a second catalyst, a support, a first activator, and a diluent, wherein the mol ratio of second catalyst to first catalyst is from 60:40 to 40:60, the second composition comprises a contact product of the third catalyst, a second activator, and a second diluent, and the third composition comprises a mol ratio of the third catalyst to the second catalyst to the first catalyst of from 10:35:55 to 60:15:25, such as 30:20:30; introducing the third composition from the line into a gas-phase fluidized bed reactor; exposing the third composition to polymerization conditions; and obtaining a polyolefin.

3. 发明申请

WO2020092588A1 MIXED CATALYST SYSTEMS WITH PROPERTIES TUNABLE BY CONDENSING AGENT 审中-公开
公开(公告)号：WO2020092588A1
公开(公告)日：2020-05-07
申请号：PCT/US2019/058892
申请日：2019-10-30
申请人： EXXONMOBIL CHEMICAL PATENTS INC.
发明人： SANDERS, David F. , IMPELMAN, Ryan W. , HOLTCAMP, Matthew W. , BEDOYA, Matthew S.
IPC分类号： C08F2/34 , C08F4/659 , C08F210/16 , C08L23/08
摘要： The present disclosure provides processes for polymerizing olefin(s). Methods can include contacting a first composition and a second composition in a line to form a third composition. The first composition can include a contact product of a first catalyst, a second catalyst, a support, a first activator, a mineral oil. The second composition can include a contact product of an activator, a diluent, and the first catalyst or the second catalyst. Methods can include introducing the third composition from the line into a gas-phase fluidized bed reactor, introducing a condensing agent to the line and/or the reactor, exposing the third composition to polymerization conditions, and/or obtaining a polyolefin.

4. 发明申请

WO2021126448A1 BROAD ORTHOGONAL DISTRIBUTION POLYETHYLENES FOR FILMS 审中-公开
公开(公告)号：WO2021126448A1
公开(公告)日：2021-06-24
申请号：PCT/US2020/060992
申请日：2020-11-18
申请人： EXXONMOBIL CHEMICAL PATENTS INC.
发明人： HOLTCAMP, Matthew W. , BEDOYA, Matthew S. , BOLLER, Timothy M. , RANGWALLA, Hasnain , SANDERS, David F. , LUE, Ching-Tai , LI, Dongming , SILVA, Adriana S. , XIE, Ru , MOEBUS, Joseph
IPC分类号： C08F210/16 , C08J5/18 , C08F4/659 , C08F2420/12 , C08F4/65912 , C08F4/65916 , C08J2323/08 , C08L2203/16 , C09D123/08
摘要： A polyethylene comprising of ethylene derived units and 0.5 wt% to 10 wt% C3 to C12 α-olefin derived units may be synthesized using a mixed catalyst that comprises rac-dimethylsilylbis(tetrahydroindenyl)zirconium dichloride and a zirconium co-catalyst in a mole ratio of 50:50 to 90:10, and wherein the zirconium co-catalyst is a poor comonomer incorporator as compared to the rac-dimethylsilylbis(tetrahydroindenyl)zirconium dichloride catalyst. Such a polyethylene may have a density of 0.91 g/cm3 to 0.93 g/cm3, an I2 value of 0.5 g/10 min to 2 g/10 min, an I21 value of 25 g/10 min to 75 g/10 min, an I21/I2 ratio of 25 to 75, a molar reversed-co-monomer index (RCI,m) of 30 to 180, a phase angle equal or lower than 70° at complex modulus G* of 10,000 Pa, a Θ2 of 1.5 radians to -1.5 radians, and a low density population of 50% and 70% by weight of the polyethylene.

5. 发明申请

WO2019246069A1 POLYETHYLENE COMPOSITIONS AND FILMS PREPARED THEREFROM 审中-公开
公开(公告)号：WO2019246069A1
公开(公告)日：2019-12-26
申请号：PCT/US2019/037691
申请日：2019-06-18
申请人： EXXONMOBIL CHEMICAL PATENTS INC.
发明人： SILVA, Adriana S. , LI, Dongming , LUE, Ching-Tai , HOLTCAMP, Matthew W. , KUPPUSWAMY, Subramaniam , SANDERS, David F. , BEDOYA, Matthew S. , MCCULLOUGH, Laughlin G.
IPC分类号： C08F210/16 , B32B27/32 , C08J5/18 , C08F4/659 , C08F4/6592
摘要： A polyethylene composition having from about 0.5 to about 20 wt% of alpha-olefin derived units other than ethylene-derived units, with the balance including ethylene-derived units, total internal unsaturations (Vy1+Vy2+T1) of from about 0.15 to about 0.40 per 1000 carbon atoms, an MI of from about 0.1 to about 6 g/10 min, an HLMl of from about 5.0 to about 40 g/10 min, a density of from about 0.890 to about 0.940 g/ml, a Tw 1 -Tw 2 value of from about -50 to about -23°C, an Mw 1 /Mw 2 value of from about 2.0 to about 3.5, an Mw/Mn of from about 4.5 to about 12, an Mz/Mw of from about 2.5 to about 3.0, an Mz/Mn of from about 15 to about 25, and a g' (vis) greater than 0.90.

6. 发明申请

WO2018075243A1 SUPPORTED CATALYST SYSTEMS AND METHODS OF USING SAME 审中-公开
标题翻译：支持的催化剂体系和使用该体系的方法
公开(公告)号：WO2018075243A1
公开(公告)日：2018-04-26
申请号：PCT/US2017/055131
申请日：2017-10-04
申请人： EXXONMOBIL CHEMICAL PATENTS INC.
发明人： HULE, Rohan A. , DOUFAS, Antonios K. , THURMAN, Derek W. , ATIENZA, Crisita Carmen H. , HOLTCAMP, Matthew W. , BEDOYA, Matthew S. , SANDERS, David F.
IPC分类号： C08F210/16 , C08F4/659 , C08F4/64
CPC分类号： C08F210/16 , C08F4/659 , C08F4/65912 , C08F4/65916 , C08F4/64148 , C08F4/65904 , C08F4/64158 , C08F210/14 , C08F2500/04 , C08F2500/05 , C08F2500/11 , C08F2500/12 , C08F2500/13 , C08F2500/17 , C08F2500/18 , C08F4/64189 , C08F4/64117
摘要： This invention relates to a catalyst system including the reaction product of a support (such as a fluorided silica support that preferably has not been calcined at a temperature of 400°C or more), an activator and at least two different transition metal catalyst compounds; methods of making such catalyst systems, polymerization processes using such catalyst systems and polymers made therefrom.
摘要翻译：本发明涉及催化剂体系，其包括载体（例如优选未在400℃或更高的温度下煅烧的氟化二氧化硅载体），活化剂和至少两种不同过渡金属催化剂化合物; 制造这种催化剂体系的方法，使用这种催化剂体系的聚合方法和由其制备的聚合物。

7. 发明申请

WO2016172099A1 POLYETHYLENE COMPOSITION 审中-公开
标题翻译：聚乙烯组合物
公开(公告)号：WO2016172099A1
公开(公告)日：2016-10-27
申请号：PCT/US2016/028271
申请日：2016-04-19
申请人： EXXONMOBIL CHEMICAL PATENTS INC.
发明人： DOUFAS, Antonios , SANDERS, David F. , HOLTCAMP, Matthew W. , YE, Xuan , NORMAN, Alexander , HULE, Rohan A. , RANGWALL, Hasain
IPC分类号： C08F110/02 , C08F210/16 , C08F4/6592
CPC分类号： C08F210/16 , B01J31/2295 , C08F4/6592 , C08F110/02 , C08F2500/04 , C08F2800/10
摘要： This invention relates to ethylene polymers obtained using a catalyst system comprising fluorided silica, alkylalumoxane activator and at least two metallocene catalyst compounds (a bridged monocyclopentadienyl group 4 transition metal compound and a biscyclopentadientyl group 4 transition metal compound), where the fluorided support has not been calcined at a temperature of 400°C or more, and is preferably produced using a wet mixing method, such as an aqueous method. The ethylene polymers have: 1) at least 50 mol% ethylene; 2) a reversed comonomer index, mol%, (RCI,m) of 85 or more; 3) a Comonomer Distribution Ratio-2 (CDR-2,m) of the percent comonomer at the z average molecular weight divided by the percent comonomer at the weight average molecular weight plus the number average molecular weight divided by 2 ([% comonomer at Mz] / [% comonomer at ((Mw+Mn)/2)] as determined by GPC of 2.3 or more; and 4) a density of 0.91 g/cc or more.
摘要翻译：本发明涉及使用包括氟化二氧化硅，烷基铝氧烷激活剂和至少两种茂金属催化剂化合物（桥连单环戊二烯基4过渡金属化合物和双环戊二烯基4过渡金属化合物）的催化剂体系获得的乙烯聚合物，其中氟化载体未被在400℃以上的温度下煅烧，优选使用湿式混合法，例如水性法制造。乙烯聚合物具有：1）至少50mol％的乙烯; 2）反相共聚单体指数mol％，（RCI，m）为85以上; 3）平均分子量百分比的共聚单体分布比-2（CDR-2，m）除以重均分子量加上数均分子量除以2的共聚单体百分比（[％共聚单体在 Mz] / [通过GPC测定的（（Mw + Mn）/ 2）]下的[％共聚单体]];以及4）密度为0.91g / cc以上。

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