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公开(公告)号：US20150232589A1
公开(公告)日：2015-08-20
申请号：US14423016
申请日：2013-08-30
Applicant: Exxonmobil Chemical Patents Inc.
Inventor： Steven A. Best , Brian R. Berg
CPC classification number: B32B27/32 , B32B27/08 , B32B27/327 , B32B2250/242 , B32B2270/00 , B32B2307/54 , B32B2307/558 , B32B2307/5825 , B32B2307/584 , C08L23/0815 , Y10T428/31855 , C08L23/06 , C08F210/16 , C08F2500/06 , C08F2500/12 , C08F2500/26 , C08F210/14
Abstract: Ethylene-based copolymers having unusual viscosity performance are described, particularly ethylene-based polymers having about 80.0 to 99.0 wt. % of polymer units derived from ethylene and about 1.0 to about 20.0 wt. % of polymer units derived from one or more C3 to C20 α-olefin comonomers; the ethylene-based polymer having a local maximum loss angle at a complex modulus, G*, of 2.50×104 to 1.00×106 Pa and a local minimum loss angle at a complex modulus, G*, of 1.00×104 to 3.00×104 Pa. The invention also includes articles, such as films, produced from such polymers and methods of making such articles.
Abstract translation: 描述了具有不寻常粘度性能的乙烯基共聚物，特别是具有约80.0至99.0wt。 衍生自乙烯的聚合物单元的％和约1.0至约20.0重量％ 衍生自一种或多种C 3 -C 20α-烯烃共聚单体的聚合物单元的％; 在复数模量下的局部最大损耗角G *为2.50×104〜1.00×106Pa的乙烯类聚合物，复数模量的局部最小损耗角G *为1.00×10 4〜3.00×10 4 本发明还包括由这种聚合物制备的制品，例如薄膜，以及制造这种制品的方法。
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公开(公告)号：US20210179743A1
公开(公告)日：2021-06-17
申请号：US17088286
申请日：2020-11-03
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Brian R. Berg , Chelsey M. Broussard , Chi-I Kuo , Porter C. Shannon
IPC: C08F4/659 , C08F10/02 , C08F2/34 , C08F4/6592
Abstract: The present disclosure relates to processes for producing a catalyst composition. A process may include mixing a catalyst compound having a transition metal atom, an activator, and a support to form a supported catalyst mixture. A process may also include drying the supported catalyst mixture at a pressure of about 10 kPa or less and a temperature of about 60° C. or greater for a period of about 6 h or less. The present disclosure also relates to processes for producing polyolefins. A process may include introducing a catalyst composition and at least one olefin to a polymerization reactor, where the catalyst composition has about 0.5 wt % to about 1.5 wt % aromatic hydrocarbon content, and less than 1 wt % of aliphatic hydrocarbon content. A process may also include obtaining a polyolefin having about 300 ppb or less aromatic hydrocarbon.
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公开(公告)号：US20210155723A1
公开(公告)日：2021-05-27
申请号：US17078691
申请日：2020-10-23
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Brian R. Berg , Handel D. Bennett , Chi-I Kuo , Robert L. Griffin , Chelsey M. Broussard , Bruce J. Savatsky
Abstract: A method of producing a supported catalyst includes introducing a dissolved catalyst solution into a catalyst mix vessel, and after introducing the dissolved catalyst solution into the catalyst mix vessel, introducing a porous support material into the catalyst mix vessel. The catalyst mix vessel is then operated to contact the dissolved catalyst solution on the porous support material and thereby generate the supported catalyst, and the supported catalyst is discharged from the catalyst mix vessel.
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公开(公告)号：US11618791B2
公开(公告)日：2023-04-04
申请号：US17078691
申请日：2020-10-23
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Brian R. Berg , Handel D. Bennett , Chi-I Kuo , Robert L. Griffin , Chelsey M. Broussard , Bruce J. Savatsky
Abstract: A method of producing a supported catalyst includes introducing a dissolved catalyst solution into a catalyst mix vessel, and after introducing the dissolved catalyst solution into the catalyst mix vessel, introducing a porous support material into the catalyst mix vessel. The catalyst mix vessel is then operated to contact the dissolved catalyst solution on the porous support material and thereby generate the supported catalyst, and the supported catalyst is discharged from the catalyst mix vessel.
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