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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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10.发明申请公开(公告)号：US20170313863A1
公开(公告)日：2017-11-02
申请号：US15525671
申请日：2015-11-10
CPC分类号： C08L23/06 , B29C41/003 , B29C41/04 , B29K2023/0608 , B29L2031/7154 , B29L2031/7158 , B29L2031/717 , B29L2031/7172 , C08L23/0815 , C08L2203/10 , C08L2205/025 , C08L2314/06 , C08F210/16 , C08F210/14 , C08F2500/12 , C08F2500/07 , C08F2500/05 , C08F2500/09 , C08L23/0876
摘要： The present invention relates to a rotomolded article, comprising at least one layer, wherein said at least one layer comprising comprises at least one metallocene-catalyzed polyethylene resin comprising at least two metallocene-catalyzed polyethylene fractions A and B; and at least one ionomer;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 wherein the polyethylene resin has a density of at least 0.930 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 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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