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1.发明授权Process for producing low density polyethylene compositions and polymers produced therefrom 有权用于生产低密度聚乙烯组合物和由其制备的聚合物的方法公开(公告)号：US07741415B2
公开(公告)日：2010-06-22
申请号：US11666527
申请日：2005-10-04
CPC分类号： C08F110/02 , C08F4/34 , C08F2/001 , C08F2500/12 , C08F2500/11 , C08F2500/04
摘要： The present invention relates to an ethylene homo or copolymer characterized as having long chain branching, and having a molecular weight distribution, Mw/Mn, and a GPC-LALLS CDF, which satisfies the following relationship: y≧0.0663x−0.015, wherein y=GPC-LALLS CDF and x=Mw/Mn measured by conventional GPC, a line drawn from where the LS chromatogram intersects with molecular weight 350,000 and molecular weight 1,150,000 has a positive slope, preferably with a melt index between 0.15 and 2000 g/10 minutes and having long chain branching. In addition, the invention relates to a free radical initiation polymerization process for the preparation of ethylene polymers or copolymers, comprising reacting ethylene and optionally one or more comonomers at a high pressure, conveniently between 13,000 psig and 100,000 psig, and at reactor temperatures of 115° C. to 400° C., preferably 125-400° C., more preferably 140-350° C., especially 165-320° C., in a reactor system comprising at least one tubular, and at least one autoclave reactor, wherein the monomer(s) feed into the reactors is divided into multiple monomer feed streams, and wherein at least one feed stream into the tubular reactor consists essentially of unreacted monomer.
摘要翻译： 本发明涉及特征在于具有长支链，并且分子量分布Mw / Mn和GPC-LALLS CDF的乙烯均聚物或共聚物，其满足以下关系：y≥0.0663x-0.015，其中y = GPC-LALLS CDF和x =通过常规GPC测量的Mw / Mn，从LS色谱图与分子量为350,000和分子量为1,150,000相交的线绘制的线具有正斜率，优选熔体指数在0.15和2000g / 10 分钟，并具有长链分支。 此外，本发明涉及用于制备乙烯聚合物或共聚物的自由基引发聚合方法，包括使乙烯和任选的一种或多种共聚单体在高压下，方便地在13000psig至100,000psig之间，反应器温度为115℃ 在包含至少一个管状和至少一个高压釜反应器的反应器系统中，在约400℃，优选125-400℃，更优选140-350℃，特别是165-320℃ ，其中进入反应器的单体被分成多个单体进料流，并且其中至少一个进入管式反应器的进料流基本上由未反应的单体组成。
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2.发明申请公开(公告)号：US20080125553A1
公开(公告)日：2008-05-29
申请号：US11666527
申请日：2005-10-04
CPC分类号： C08F110/02 , C08F4/34 , C08F2/001 , C08F2500/12 , C08F2500/11 , C08F2500/04
摘要： The present invention relates to an ethylene homo or copolymer characterized as having long chain branching, and having a molecular weight distribution, Mw/Mn, and a GPC-LALLS CDF, which satisfies the following relationship: y≧0.0663x-0.015, wherein y=GPC-LALLS CDF and x=Mw/Mn measured by conventional GPC, a line drawn from where the LS chromatogram intersects with molecular weight 350,000 and molecular weight 1,150,000 has a positive slope, preferably with a melt index between 0.15 and 2000 g/10 minutes and having long chain branching. In addition, the invention relates to a free radical initiation polymerization process for the preparation of ethylene polymers or copolymers, comprising reacting ethylene and optionally one or more comonomers at a high pressure, conveniently between 13,000 psig and 100,000 psig, and at reactor temperatures of 115° C. to 400° C., preferably 125-400° C., more preferably 140-350° C., especially 165-320° C., in a reactor system comprising at least one tubular, and at least one autoclave reactor, wherein the monomer(s) feed into the reactors is divided into multiple monomer feed streams, and wherein at least one feed stream into the tubular reactor consists essentially of unreacted monomer.
摘要翻译： 本发明涉及特征在于具有长支链，并具有分子量分布Mw / Mn和GPC-LALLS CDF的乙烯均聚物或共聚物，其满足以下关系：y> = 0.0663x-0.015，其中 y = GPC-LALLS CDF和x =通过常规GPC测量的Mw / Mn，从其中LS色谱图与分子量为350,000和分子量为1,150,000相交的线绘制的线具有正斜率，优选熔体指数在0.15和2000g / 10分钟，具有长链分支。 此外，本发明涉及用于制备乙烯聚合物或共聚物的自由基引发聚合方法，包括使乙烯和任选的一种或多种共聚单体在高压下，方便地在13000psig至100,000psig之间，反应器温度为115℃ 在包含至少一个管状和至少一个高压釜反应器的反应器系统中，在约400℃，优选125-400℃，更优选140-350℃，特别是165-320℃ ，其中进入反应器的单体被分成多个单体进料流，并且其中至少一个进入管式反应器的进料流基本上由未反应的单体组成。
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3.发明授权公开(公告)号：US07863386B2
公开(公告)日：2011-01-04
申请号：US11817231
申请日：2006-03-03
IPC分类号： C08L23/04 , C08F110/02
CPC分类号： C08L23/04 , C08L23/06 , C08L2205/02 , C08L2666/06 , C08F210/16 , C08F2500/03 , C08F2500/11 , C08F2500/12 , C08F2500/04
摘要： The instant invention is an improved low-density ethylenic polymer composition and method of making the same. The polymer composition according to instant invention includes a major component, and a minor component. The major component is an LDPE resin having a melt index (I2) in the range of about 0.01 dg/min to about 100 dg/min, a MW(abs)/MW(GPC) ratio of about 2.6 or less, and a melt strength of less than (14.0 e(−1.05*log 10(MI)))cN Jj16 mmor component is an LDPE resin having a melt index (I2) of less than about 5 dg/min, a molecular weight distribution of greater than about 7, and a MW(abs)/MW(GPC) ratio of at least 2.7. The polymer composition of the instant invention may further include additional components.
摘要翻译： 本发明是一种改进的低密度烯属聚合物组合物及其制备方法。 根据本发明的聚合物组合物包括主要组分和次要组分。 主要组分是熔体指数（I 2）在约0.01dg / min至约100dg / min，MW（abs）/ MW（GPC）比为约2.6或更小的范围内的LDPE树脂和熔体 强度小于（14.0e（-1.05 * log 10（MI）））cN Jj16 mmor组分是熔体指数（I 2）小于约5dg / min的LDPE树脂，分子量分布大于约 7，MW（abs）/ MW（GPC）比至少为2.7。 本发明的聚合物组合物可以进一步包括另外的组分。
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公开(公告)号：US20080255302A1
公开(公告)日：2008-10-16
申请号：US11817231
申请日：2006-03-03
IPC分类号： C08L23/04
CPC分类号： C08L23/04 , C08L23/06 , C08L2205/02 , C08L2666/06 , C08F210/16 , C08F2500/03 , C08F2500/11 , C08F2500/12 , C08F2500/04
摘要： The instant invention is an improved low-density ethylenic polymer composition and method of making the same. The polymer composition according to instant invention includes a major component, and a minor component. The major component is an LDPE resin having a melt index (I2) in the range of about 0.01 dg/min to about 100 dg/min, a MW(abs)/MW(GPC) ratio of about 2.6 or less, and a melt strength of less than (14.0 e(−1.05*log 10(MI)))cN Jj16 mmor component is an LDPE resin having a melt index (I2) of less than about 5 dg/min, a molecular weight distribution of greater than about 7, and a MW(abs)/MW(GPC) ratio of at least 2.7. The polymer composition of the instant invention may further include additional components. Furthermore, the free radical initiation polymerization process according to instant invention includes the following steps: providing ethylene; and reacting the ethylene in a reactor system, which includes at least one tubular reactor and at least one autoclave reactor, at a high pressure range of about 18,000 psig to about 55,000 psig, at a reactor temperature of about 190° C. to about 400° C., wherein the ethylene feed into the reactors is divided into multiple ethylene feed streams, and at least one of the ethylene feed streams into the tubular reactor consists essentially of the unreacted ethylene. Additionally, the free radical initiation polymerization process according to instant invention may further include the steps of providing at least one or more comonomers; and reacting the ethylene and the comonomer(s) in the reactor system a high pressure range of about 18,000 psig to about 55,000 psig, at a reactor temperature of about 190° C. to about 400° C.
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