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公开(公告)号:US06171993B2
公开(公告)日:2001-01-09
申请号:US09205481
申请日:1998-12-04
申请人: Harilaos Mavridis , Mark K. Reinking , Ramesh N. Shroff , Joel A. Mutchler , Charles S. Holland , Keta M. Lindstrom , Kiran M. Gupte , Michael H. Treptau , Francis M. Mirabella
发明人: Harilaos Mavridis , Mark K. Reinking , Ramesh N. Shroff , Joel A. Mutchler , Charles S. Holland , Keta M. Lindstrom , Kiran M. Gupte , Michael H. Treptau , Francis M. Mirabella
IPC分类号: B01J2100
CPC分类号: B01J31/38 , B01J31/0274 , B01J31/122 , B01J37/0018 , C08F210/16 , C08F4/6565 , C08F4/025 , C08F210/08 , C08F2500/12 , C08F2500/21 , C08F2500/26 , C08F210/14
摘要: The present invention provides an ethylene copolymer resin that has unique melt elastic properties not observed in ethylene copolymers heretofore known. Specifically, the ethylene copolymer resin of the present invention when in pelletized form has a reduction in melt elasticity (ER) of 10% or more to a final value of 1.0 or less upon rheometric low shear modification or solution dissolution. Moreover, the resin of the present invention when in reactor-made form exhibits at least a partially reversible increase of 10% or more in ER when pelletizing the same. An ethylene polymerization catalyst, a process of preparing the ethylene copolymer resin and a high-impact film are also provided herein.
摘要翻译: 本发明提供一种乙烯共聚物树脂,其在迄今为止已知的乙烯共聚物中没有观察到独特的熔体弹性性能。 具体地说,本发明的乙烯共聚物树脂在粒状下,在流变性低剪切改性或溶液溶解时,其熔体弹性(ER)降低10%以上至最终值1.0以下。 此外,当以反应器制成形式时,本发明的树脂在造粒时表现出ER的至少部分可逆增加的10%以上。 本发明还提供乙烯聚合催化剂,制备乙烯共聚物树脂的方法和高冲击膜。
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公开(公告)号:US06713585B1
公开(公告)日:2004-03-30
申请号:US09629280
申请日:2000-07-31
申请人: Harilaos Mavridis , Mark K. Reinking , Ramesh N. Shroff , Joel A. Mutchler , Charles S. Holland , Keta M. Lindstrom , Kiran M. Gupte , Michael H. Treptau , Francis M. Mirabella
发明人: Harilaos Mavridis , Mark K. Reinking , Ramesh N. Shroff , Joel A. Mutchler , Charles S. Holland , Keta M. Lindstrom , Kiran M. Gupte , Michael H. Treptau , Francis M. Mirabella
IPC分类号: C08F11002
CPC分类号: B01J31/38 , B01J31/0274 , B01J31/122 , B01J37/0018 , C08F210/16 , C08F4/6565 , C08F4/025 , C08F210/08 , C08F2500/12 , C08F2500/21 , C08F2500/26 , C08F210/14
摘要: The present invention provides an ethylene copolymer resin that has unique melt elastic properties not observed in ethylene copolymers heretofore known. Specifically, the ethylene copolymer resin of the present invention when in pelletized form has a reduction in melt elasticity (ER) of 10% or more to a final value of 1.0 or less upon rheometric low shear modification or solution dissolution. Moreover, the resin of the present invention when in reactor-made form exhibits at least a partially reversible increase of 10% or more in ER when pelletizing the same. An ethylene polymerization catalyst, a process of preparing the ethylene copolymer resin and a high-impact film are also provided herein.
摘要翻译: 本发明提供一种乙烯共聚物树脂,其在迄今为止已知的乙烯共聚物中没有观察到独特的熔体弹性性能。 具体地说,本发明的乙烯共聚物树脂在粒状下,在流变性低剪切改性或溶液溶解时,其熔体弹性(ER)降低10%以上至最终值1.0以下。 此外,当以反应器制成形式时,本发明的树脂在造粒时表现出ER的至少部分可逆增加的10%以上。 本发明还提供乙烯聚合催化剂,制备乙烯共聚物树脂的方法和高冲击膜。
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公开(公告)号:US5426153A
公开(公告)日:1995-06-20
申请号:US223617
申请日:1994-04-06
CPC分类号: C08J5/18 , C08L23/0815 , C08J2323/16
摘要: A polymeric composition including a first copolymer of ethylene and a higher .alpha.-olefin having 3 to 12 carbon atoms, said first copolymer having a density of between 0.880 g/cc. and about 0.949 g/cc. and a melt index of between about 0.01 and about 100, present in the polymeric composition in a concentration of between about 60% and about 95% by weight; and a second copolymer of ethylene-vinyl acetate having a vinyl acetate content of at least about 28% by weight, based on the total weight of the ethylene-vinyl acetate copolymer, said second copolymer present in a concentration of between about 5% and about 40% by weight, said percentages by weight based on the total weight of the polymeric composition. This polymeric composition is particularly useful when fabricated into a film, which has excellent impact strength.
摘要翻译: 一种聚合物组合物,其包含乙烯和具有3至12个碳原子的较高级α-烯烃的第一共聚物,所述第一共聚物的密度为0.880g / cc。 和约0.949g / cc。 和约0.01至约100的熔体指数,其浓度为约60重量%至约95重量%; 和乙烯 - 乙酸乙烯酯的乙烯 - 乙酸乙烯酯的第二共聚物,其乙酸乙烯酯含量为至少约28重量%,基于乙烯 - 乙酸乙烯酯共聚物的总重量,所述第二共聚物以约5%至约5%的浓度存在 40重量%,所述基于聚合物组合物的总重量的重量百分比。 当制造成具有优异冲击强度的膜时,该聚合物组合物特别有用。
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