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    Elastic blends comprising crystalline polymer and crystallizabe polymers of propylene
    4.
    发明申请
    Elastic blends comprising crystalline polymer and crystallizabe polymers of propylene 审中-公开
    包含结晶聚合物和丙烯结晶可聚合物的弹性共混物

    公开(公告)号：US20050131157A1

    公开(公告)日：2005-06-16

    申请号：US10970789

    申请日：2004-10-21

    申请人： Sudhin Datta ,  Charles Cozewith ,  Periagaram Ravishankar ,  Edmund Stachowski

    发明人： Sudhin Datta ,  Charles Cozewith ,  Periagaram Ravishankar ,  Edmund Stachowski

    IPC分类号： C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08L23/16 ,  C08L23/00

    CPC分类号： C08L23/10 ,  C08L23/12 ,  C08L23/142 ,  C08L2205/02 ,  C08L2666/04 ,  C08L2666/06

    摘要： Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.

    摘要翻译： 包含全同立构聚丙烯组分和α-烯烃和丙烯共聚物组分的改进的热塑性聚合物共混组合物，所述共聚物包含可结晶的α-烯烃序列。 在优选的实施方案中，提供了改进的热塑性聚合物共混物，其包含约35％至约85％的全同立构聚丙烯和约30％至约70％的乙烯和丙烯共聚物，其中所述共聚物包含等度可结晶的丙烯序列，并且主要为丙烯 。 所得到的共混物表现出意想不到的相容特性，增加的拉伸强度和改进的工艺特性，例如单一熔点。

    Propylene olefin copolymers
    5.
    发明授权
    Propylene olefin copolymers 有权
    丙烯烯烃共聚物

    公开(公告)号：US07855258B2

    公开(公告)日：2010-12-21

    申请号：US11352558

    申请日：2006-02-13

    申请人： Sudhin Datta ,  Charles Cozewith ,  Periagaram Ravishankar ,  Edmund J. Stachowski

    发明人： Sudhin Datta ,  Charles Cozewith ,  Periagaram Ravishankar ,  Edmund J. Stachowski

    IPC分类号： C08F4/642 ,  C08F4/643 ,  C08F210/06

    CPC分类号： C08L23/10 ,  C08L23/12 ,  C08L23/142 ,  C08L2205/02 ,  C08L2666/04 ,  C08L2666/06

    摘要： Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.

    摘要翻译： 包含全同立构聚丙烯组分和α-烯烃和丙烯共聚物组分的改进的热塑性聚合物共混组合物，所述共聚物包含可结晶的α-烯烃序列。 在优选的实施方案中，提供了改进的热塑性聚合物共混物，其包含约35％至约85％的全同立构聚丙烯和约30％至约70％的乙烯和丙烯共聚物，其中所述共聚物包含等度可结晶的丙烯序列，并且主要为丙烯 。 所得到的共混物表现出意想不到的相容特性，增加的拉伸强度和改进的工艺特性，例如单一熔点。

    Process for making ethylene interpolymers and interpolymers made thereby; compositions and electrical devices containing such interpolymers
    8.
    发明申请
    Process for making ethylene interpolymers and interpolymers made thereby; compositions and electrical devices containing such interpolymers 有权
    制备乙烯互聚物和互聚物的方法; 组合物和含有这种互聚物的电子装置

    公开(公告)号：US20050215737A1

    公开(公告)日：2005-09-29

    申请号：US11086108

    申请日：2005-03-21

    申请人： Narayanaswami Dharmarajan ,  Rui Zhao ,  Bruce Harrington ,  George Pehlert ,  Periagaram Ravishankar ,  Kent Chasey

    发明人： Narayanaswami Dharmarajan ,  Rui Zhao ,  Bruce Harrington ,  George Pehlert ,  Periagaram Ravishankar ,  Kent Chasey

    IPC分类号： C08F4/44 ,  C08F210/16

    CPC分类号： C08F210/16 ,  C08F2/001 ,  C08F2/06 ,  C08F210/06 ,  C08F2500/25 ,  C08F2500/09 ,  C08F2500/08 ,  C08F2500/12 ,  C08F2500/05 ,  C08F2500/17 ,  C08F210/08 ,  C08F236/20 ,  C08F210/14

    摘要： The invention relates to a continuous polymerization process for preparing a random ethylene interpolymer with propylene and/or 1-butene which comprises: (A) polymerizing ethylene, and as an α-olefin comonomer propylene and/or 1-butene under continuous random polymerization conditions in the presence of single site catalyst system employing an ionic activator having cyclic ligands shielding a central charge bearing atom, at a temperature of 140° C. to 250° C. at a conversion of ethylene of 80 to 99% and a comonomer conversion of from at least 30% and (B) devolatilizing the polymer to provide an ethylene copolymer having a density of from 0.85 to 0.92 g/cm3, an MI of from 0.01 to 100 g/10 min, preferably from 0.1 to 20, and an I21/I2 of from 30 to 400. The invention also relates to polymers made by such processes containing as α-olefin comonomer propylene and/or 1-butene, having a density of from 0.85 to 0.92 g/cm3, an MI of from 0.01 to 100 g/10 min and an I21/I2 of from 30 to 400 obtained by solution polymerization using a transition metal complex as a catalyst and a non-coordinating anion to provide a level of NCA derived residue, as determined by boron content, less than 0.5 ppm. as determined by ICP, preferably undetectable by ICP. The polymers may be blended with EP rubber elastomers and be used for electrical cable insulation.

    摘要翻译： 本发明涉及用丙烯和/或1-丁烯制备无规乙烯互聚物的连续聚合方法，其包括：（A）在连续无规聚合条件下聚合乙烯和作为α-烯烃共聚单体丙烯和/或1-丁烯 在使用具有屏蔽中心带电荷原子的环状配体的离子活化剂的单中心催化剂体系存在下，在140℃至250℃的温度下，乙烯的转化率为80-99％，共聚单体转化率 至少30％，（B）使该聚合物脱挥发分，得到密度为0.85至0.92g / cm 3的乙烯共聚物，MI为0.01至100g / 10min，优选为 本发明还涉及通过这样的方法制备的聚合物，该聚合物含有α-烯烃共聚单体丙烯和/或 /或1-丁烯，密度为0.85至0.92g / cm 3，MI为0.0 通过使用过渡金属络合物作为催化剂的溶液聚合获得的30至400的1至100g / 10min和1〜20wt％的非配位性 阴离子，以提供由硼含量确定的NCA衍生残基的水平小于0.5ppm。 由ICP测定，优选不能通过ICP检测。 聚合物可与EP橡胶弹性体共混并用于电缆绝缘。

    Viscosity index modifiers and lubricant compositions containing such viscosity index modifiers
    10.
    发明申请
    Viscosity index modifiers and lubricant compositions containing such viscosity index modifiers 有权
    含有这种粘度指数调节剂的粘度指数调节剂和润滑剂组合物

    公开(公告)号：US20080039350A1

    公开(公告)日：2008-02-14

    申请号：US11800649

    申请日：2007-05-07

    申请人： Jean-Roch Schauder ,  Kirk Nass ,  Periagaram Ravishankar ,  Karine Vincent

    发明人： Jean-Roch Schauder ,  Kirk Nass ,  Periagaram Ravishankar ,  Karine Vincent

    IPC分类号： C10M119/02 ,  C08F10/02

    CPC分类号： C08L53/00 ,  C08F297/08 ,  C08F297/083 ,  C08L53/025 ,  C08L2666/02 ,  C08L2666/04

    摘要： The invention relates to viscosity modifier polymers, concentrate and lubricant formulations utilizing a diblock polymer having one block A and one block B, block A contributing from 15 to 30% of the total chain length and block B from 70 to 85% of the total chain length, wherein block A comprises at least 93 wt % of ethylene and at least one other alpha-olefin and block B comprises an ethylene content between 40 and 75 wt % and at least one other alpha-olefin and wherein the resulting block copolymer has an average ethylene content of between about 60 wt % to 80 wt % ethylene, a fast Gaussian NMR relaxation signal between 17 and 22% and a slow exponential NMR relaxation signal between 58 and 68% of the total NMR relaxation signal, a SSI of at least 35% and a TE of at least 3.5 in order to obtain improvements in fuel economy.

    摘要翻译： 本发明涉及使用具有一个嵌段A和一个嵌段B的二嵌段聚合物的粘度改进剂聚合物，浓缩物和润滑剂制剂，占总链长度的15-30％的嵌段A和总链的70-85％的嵌段B 其中嵌段A包含至少93重量％的乙烯和至少一种其它α-烯烃，嵌段B包含40至75重量％的乙烯含量和至少一种其它α-烯烃，并且其中所得嵌段共聚物具有 平均乙烯含量为约60重量％至80重量％乙烯，快速高斯NMR弛豫信号为17至22％，缓慢的指数NMR弛豫信号为总NMR弛豫信号的58至68％，SSI为至少 35％，TE至少为3.5，以获得燃油经济性的提高。