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公开(公告)号：US20210317238A1
公开(公告)日：2021-10-14
申请号：US16330612
申请日：2017-09-07
发明人： Alexandre Welle , Aurélien Vantomme , Jean-François Carpentier , Gilles Schnee , Olivier Miserque , Evgueni Kirillov
IPC分类号： C08F4/6592 , C08F4/642 , C08F210/02 , C08F210/06
摘要： The present invention relates to new bis(metallocene) compounds, new catalyst compositions, process for preparing the new bis(metallocene) compounds and use of said new catalyst compositions to polymerise olefins. The bis(metallocene) compounds of the invention are homo- or hetero bis(metallocene) molecules in which same or different metallocene moieties are connected by a phenylene bridge. The phenylene bridge is either para-substituted, meta-substituted or ortho-substituted by the two metallocene moieties.
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公开(公告)号：US11274171B2
公开(公告)日：2022-03-15
申请号：US16633675
申请日：2018-08-02
IPC分类号： C08F4/76 , C08F4/64 , C08F210/16 , C07F17/00 , B01J35/00 , C08F4/642 , C08F4/659 , C08F4/6592
摘要： The present invention relates to a catalyst composition comprising: catalyst component A comprising a bridged metallocene compound with two indenyl groups, each indenyl being substituted with one or more substituents, wherein at least one of the substituent is an aryl or heteroaryl; catalyst component B comprising a bridged metallocene compound with a substituted or unsubstituted cyclopentadienyl group and a substituted or unsubstituted fluorenyl group; an optional activator; an optional support; and an optional co-catalyst. The present invention also relates to a polymerization process using said composition. The invention further relates to olefin polymers at least partially catalyzed by said catalyst composition and articles comprising said olefin polymers.
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公开(公告)号：US11236221B2
公开(公告)日：2022-02-01
申请号：US16764064
申请日：2018-11-12
IPC分类号： C08F210/16 , C08L23/02 , C08L23/08 , B29C43/00 , B29C45/00 , C08F2/00 , C08F110/02 , B29L31/56
摘要： The present invention relates to a polyethylene resin suitable for preparing moulded articles, such as caps and closures. The invention provides in particular a polyethylene resin comprising at least two polyethylene fractions A and B, wherein said polyethylene resin has a melt index (MI2), of at least 3.0 g/10 min to at most 5.5 g/10 min as measured according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg, and a density of at least 0.955 g/cm3 to at most 0.965 g/cm3 as measured according to ISO 1183 at 23° C., and a molecular weight distribution Mw/Mn which is at most 7.0, as determined by gel permeation chromatography, with Mw being the weight-average molecular weight and Mn being the number-average molecular weight; and wherein said polyethylene fraction A has a high load melt index (HLMI), as measured according to ISO 1133:1997 condition G at 190° C. and under a load of 21.6 kg, of at least 10.5 and a melt index (MI2) of at least 0.5 g/10 min to at most 1.5 g/10 min as measured according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg. The invention further relates to a process for preparing said polyethylene resin, to a cap or closure comprising said polyethylene, and to a process for producing such a cap or closure.
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公开(公告)号：US20210087311A1
公开(公告)日：2021-03-25
申请号：US16633673
申请日：2018-08-02
IPC分类号： C08F210/16 , C07F17/00
摘要： The present invention relates to a catalyst composition comprising: catalyst component A comprising a bridged metallocene compound with two tetrahydroindenyl groups, each group being unsubstituted or substituted; catalyst component B comprising a bridged metallocene compound with a substituted or unsubstituted cyclopentadienyl group and a substituted or unsubstituted fluorenyl group; an optional activator; an optional support; and an optional co-catalyst. The present invention also relates to a polymerization process using said composition. The invention further relates to olefin polymers at least partially catalyzed by said catalyst composition and articles comprising said olefin polymers.
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公开(公告)号：US10550251B2
公开(公告)日：2020-02-04
申请号：US15525669
申请日：2015-11-10
摘要： The present invention relates to a rotomolded article, comprising at least one metallocene-catalyzed polyethylene resin comprising at least two metallocene-catalyzed polyethylene fractions A and B, wherein the polyethylene resin comprises: at least 25% to at most 55% by weight of polyethylene fraction A based on the total weight of the polyethylene resin, wherein fraction A has a melt index MI2 of at least 25.0 g/10 min as determined according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg, and a density at least 0.005 g/cm3 higher than the density of the polyethylene resin; and wherein the polyethylene resin has a density of at least 0.938 g/cm3 to at most 0.950 g/cm3 as measured according to ASTM D-1505 at 23° C.; a melt index MI2 of at least 1.0 g/10 min to at most 25.0 g/10 min as determined according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg. The present invention also relates to a process for preparing said rotomolded article.
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公开(公告)号：US10336892B2
公开(公告)日：2019-07-02
申请号：US15525675
申请日：2015-11-10
摘要： The present invention relates to a metallocene-catalyzed polyethylene resin comprising at least two metallocene-catalyzed polyethylene fractions A and B, wherein the polyethylene resin comprises: at least 25% to at most 55% by weight of polyethylene fraction A based on the total weight of the polyethylene resin, wherein fraction A has a density at least 0.005 g/cm3 higher than the density of the polyethylene resin; and a melt index MI2 of at least 25.0 g/10 min as determined according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg; and wherein the polyethylene resin has a density of at least 0.938 g/cm3 to at most 0.954 g/cm3 as measured according to ASTM D-1505 at 23° C.; a melt index MI2 of at least 2.5 g/10 min to at most 25.0 g/10 min as determined according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg and a molecular weight distribution Mw/Mn of at least 2.6 to at most 4.2, with Mw being the weight-average molecular weight and Mn being the number-average molecular weight. The present invention also relates to an article comprising said resin.
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公开(公告)号：US11193006B2
公开(公告)日：2021-12-07
申请号：US16330450
申请日：2017-08-31
摘要： The invention relates to a composition comprising a rubber-modified monovinylaromatic polymer comprising: 70 wt % or more of a monovinylaromatic polymer matrix, from 2 to 12 wt % of at least one rubber, and from 0.1 to 3.4 wt % of metallocene-catalyzed poly-alpha-olefins (mPAO) all based on the total weight of the rubber-modified monovinylaromatic polymer, with the mPAO having a kinematic viscosity of at least 950 mm2/s at 40° C. and at most 2,000 mm2/s at 40° C. as measured according to ISO 3104. The invention also relates to articles made from such composition and to the process to produce said composition and said articles.
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公开(公告)号：US20210277155A1
公开(公告)日：2021-09-09
申请号：US16330645
申请日：2017-09-07
发明人： Alexandre Welle , Aurélien Vantomme , Jean-François Carpentier , Gilles Schnee , Olivier Miserque , Evgueni Kirillov
IPC分类号： C08F10/06 , C08F2/02 , C08F4/659 , C08F4/6592
摘要： The present invention relates to a new process for preparing a polypropylene using new bis(metallocene) compounds in catalyst compositions. The bis(metallocene) compounds of the invention are homo- or hetero bis(metallocene) molecules in which same or different metallocene moieties are connected by a phenylene bridge. The phenylene bridge is either para-substituted, meta-substituted or ortho-substituted by the two metallocene moieties
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公开(公告)号：US20210155724A1
公开(公告)日：2021-05-27
申请号：US16633675
申请日：2018-08-02
IPC分类号： C08F4/6592 , C08F210/16 , C08F4/659 , B01J35/00 , C08F4/642
摘要： The present invention relates to a catalyst composition comprising: catalyst component A comprising a bridged metallocene compound with two indenyl groups, each indenyl being substituted with one or more substituents, wherein at least one of the substituent is an aryl or heteroaryl; catalyst component B comprising a bridged metallocene compound with a substituted or unsubstituted cyclopentadienyl group and a substituted or unsubstituted fluorenyl group; an optional activator; an optional support; and an optional co-catalyst. The present invention also relates to a polymerization process using said composition. The invention further relates to olefin polymers at least partially catalyzed by said catalyst composition and articles comprising said olefin polymers.
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公开(公告)号：US20170321046A1
公开(公告)日：2017-11-09
申请号：US15525669
申请日：2015-11-10
CPC分类号： C08L23/0815 , B29C41/003 , B29C41/04 , B29K2023/06 , B29L2031/7126 , B29L2031/7154 , B29L2031/7172 , C08L2205/02 , C08L2205/025 , C08L2314/06 , C08L23/06
摘要： The present invention relates to a rotomolded article, comprising at least one metallocene-catalyzed polyethylene resin comprising at least two metallocene-catalyzed polyethylene fractions A and B, wherein the polyethylene resin comprises: at least 25% to at most 55% by weight of polyethylene fraction A based on the total weight of the polyethylene resin, wherein fraction A has a melt index MI2 of at least 25.0 g/10 min as determined according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg, and a density at least 0.005 g/cm3 higher than the density of the polyethylene resin; and wherein the polyethylene resin has a density of at least 0.938 g/cm3 to at most 0.950 g/cm3 as measured according to ASTM D-1505 at 23° C.; a melt index MI2 of at least 1.0 g/10 min to at most 25.0 g/10 min as determined according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg. The present invention also relates to a process for preparing said rotomolded article.
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