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    Propylene/ethylene/&agr;-olefin terpolymers and processes for the production thereof
    2.
    发明授权
    Propylene/ethylene/&agr;-olefin terpolymers and processes for the production thereof 失效
    丙烯/乙烯/α-烯烃三元共聚物及其制备方法

    公开(公告)号：US06388040B1

    公开(公告)日：2002-05-14

    申请号：US09421329

    申请日：1999-10-18

    Applicant: Hiroyuki Fujita ,  Jun Saito ,  Yoshitoyo Yasuda ,  Yoshiyuki Ohgi ,  Yasuhiro Shiraishi ,  Shinji Nakata ,  Tsutomu Ushioda ,  Mototake Tsutsui

    Inventor： Hiroyuki Fujita ,  Jun Saito ,  Yoshitoyo Yasuda ,  Yoshiyuki Ohgi ,  Yasuhiro Shiraishi ,  Shinji Nakata ,  Tsutomu Ushioda ,  Mototake Tsutsui

    IPC: C08F21000

    CPC classification number: C08F210/16 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/00 ,  C08F210/06 ,  Y10S526/943 ,  C08F4/65927 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/26

    Abstract: A propylene/ethylene/&agr;-olefin terpolymer characterized in that i) there is from 0.01 mol % to less than 15 mol % of a comonomer unit with a molar ratio of ethylene units/C4-C20 &agr;-olefin units being in the range of from 6.5×10−4 to 0.99, and from more than 85 mol % to not more than 99.99 mol % of a propylene unit with 2,1- and 1,3-propylene units being in the range of from 0 to 1 mol %, in a polymer chain determined by 13C-NMR spectroscopy; ii) a weight average molecular weight (Mw) determined by GPC is in the range of from 40,000 to 1,000,000; and iii) the amount of the component eluted in o-dichlorobenzene at a temperature of not higher than 40° C. is not more than 10 % by weight based on the total weight of the terpolymer and the amount of the component eluted in o-dichlorobenzene within the ±10° C. range of an elution peak temperature is not less than 75 % by weight based on the weight of the component eluted at a temperature of higher than 0° C.

    Abstract translation: 丙烯/乙烯/α-烯烃三元共聚物，其特征在于：）具有0.01摩尔％至小于15摩尔％的共聚单体单元，其中乙烯单元/ C 4 -C 20α-烯烃单元的摩尔比在 具有2,1-和1,3-丙烯单元的丙烯单元的摩尔比为6.5×10 -4〜0.99，以及大于85摩尔％以上且99.99摩尔％以下的丙烯单元，为0〜1摩尔％ 通过13 C-NMR光谱测定的聚合物链; ii）通过GPC测定的重均分子量（Mw）在40,000至1,000,000的范围内; 和iii）在不高于40℃的温度下在邻二氯苯中洗脱的组分的量不超过基于三元共聚物的总重量的10重量％，并且在邻二氯苯中洗脱的组分的量 洗脱峰温度的±10℃范围内，在高于0℃的温度下洗脱的成分的重量为75重量％以上。

    Compitable linear and branched ethylenic polymers and foams therefrom
    3.
    发明授权
    Compitable linear and branched ethylenic polymers and foams therefrom 有权
    相容的线性和支化烯烃聚合物和泡沫

    公开(公告)号：US06593386B1

    公开(公告)日：2003-07-15

    申请号：US09394723

    申请日：1999-09-13

    Applicant: Nelson E. Malwitz ,  Natarajan S. Ramesh ,  Shau-Tarng Lee

    Inventor： Nelson E. Malwitz ,  Natarajan S. Ramesh ,  Shau-Tarng Lee

    IPC: C08F21000

    CPC classification number: C08J9/141 ,  C08J2205/052 ,  C08J2323/02

    Abstract: An expanded cellular ethylenic polymer product is provided from an irradiated, noncross-linked linear ethylenic polymer. Linear ethylenic polymers can be irradiated at ambient conditions sufficient to introduce branching in the polymer in the absence of detectable cross-linking as indicated by the absence of gels. The irradiated linear ethylenic polymer is compatible with highly branched low density polyethylene and, when mixed therewith, produces a resin having a single broad based melting temperature range as determined by direct scanning calorimetry, which indicates that the polymers in the mixture have similar crystallization behavior suitable for producing low density foams by extrusion foaming. The linear polymers can be obtained from recycled shrink wrap film. Low densities of from 0.7 to less than 4 pcf can be achieved. The foams typically have improved tear resistance as compared to previous products prepared from low density polyethylene, at comparable low densities.

    Abstract translation: 从照射的非交联的直链烯属聚合物提供膨胀的细胞烯属聚合物产物。 直链烯属聚合物可在不存在可检测的交联作用的情况下在足以引入聚合物中的支化物的环境条件下照射，如不存在凝胶所示。 经辐射的线性烯属聚合物与高度支化的低密度聚乙烯相容，当与其混合时，产生具有通过直接扫描量热法确定的单一宽基熔点温度范围的树脂，这表明混合物中的聚合物具有相似的结晶行为 用于通过挤出发泡生产低密度泡沫。 线性聚合物可以从再循环的收缩包装膜获得。 可实现0.7至小于4 pcf的低密度。 与以低密度聚乙烯制备的以前的产品相比，泡沫通常具有改善的抗撕裂性。

    High impact LLDPE films
    4.
    发明授权
    High impact LLDPE films 失效
    高冲击LLDPE薄膜

    公开(公告)号：US06458910B1

    公开(公告)日：2002-10-01

    申请号：US08647196

    申请日：1996-04-15

    Applicant: Vaseem Firdaus ,  Pradeep P. Shirodkar

    Inventor： Vaseem Firdaus ,  Pradeep P. Shirodkar

    IPC: C08F21000

    CPC classification number: C08J5/18 ,  B29C47/0023 ,  B29C47/0026 ,  B29C47/8835 ,  B29C55/28 ,  B29K2023/0625 ,  C08F10/00 ,  C08J2323/08 ,  C08F4/642

    Abstract: Blown films of linear low density polyethylene are produced by a high stalk process comprising extruding the linear low density polyethylene through an annular die to form an extruded tube of molten material, cooling the extruded tube while drawing the tube so cooled, to maintain the tube diameter identical to that of the annular die and expanding the tube or bubble to attenuate the walls thereof by introducing a gas to the interior of the tube or bubble. The resulting films are characterized by superior impact strength and MD tear resistance.

    Abstract translation: 线性低密度聚乙烯的吹塑薄膜是通过高秸秆方法生产的，包括通过环形模头挤出线性低密度聚乙烯，形成挤出的熔融材料管，冷却挤压管，同时拉制冷却管，以保持管直径 与环形模具相同，并且通过将气体引导到管或气泡的内部而膨胀管或气泡以减弱其壁。 所得膜的特征在于优异的冲击强度和MD抗撕裂性。

    Olefin polymerization process with alkyl-substituted metallocenes
    6.
    发明授权
    Olefin polymerization process with alkyl-substituted metallocenes 有权
    烯烃聚合方法与烷基取代金属茂

    公开(公告)号：US06759499B1

    公开(公告)日：2004-07-06

    申请号：US09400568

    申请日：1999-09-21

    Applicant: Joseph C. Floyd ,  Moses Olukayode Jejelowo ,  Donna Jean Crowther ,  George Alan Vaughan ,  Ching Tai Lue

    Inventor： Joseph C. Floyd ,  Moses Olukayode Jejelowo ,  Donna Jean Crowther ,  George Alan Vaughan ,  Ching Tai Lue

    IPC: C08F21000

    CPC classification number: C08F210/16 ,  C08F4/61916 ,  C08F4/61922 ,  C08F10/02 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/06

    Abstract: The invention comprises an olefin polymerization process comprising contacting ethylene alone or with one or more olefinically unsaturated comonomers with a Group 3-6 metallocene catalyst compound comprising one &pgr;-bonded ring having a C3 or greater hydrocarbyl, hydrocarbylsilyl or hydrocarbylgermyl substituent said substituent bonded to the ring through a primary carbon atom; and, where the compound contains two &pgr;-bonded rings, the total number of substituents on the rings is equal to a number from 3 to 10, said rings being asymmetrically substituted where the number of substituents is 3 or 4. The invention process is particularly suitable for preparing ethylene copolymers having an MIR less than about 35, while retaining narrow CD even at high comonomer incorporation rates, and with certain embodiments providing ethylene copolymers having improved melt strength with the low MIR.

    Abstract translation: 本发明包括烯烃聚合方法，包括使乙烯单独或与一种或多种烯属不饱和共聚单体与3-6族茂金属催化剂化合物接触，所述组合物包含一个具有C3或更多烃基，烃基甲硅烷基或烃基锗原子取代基的π键合环，所述取代基与 环通过伯碳原子; 并且当化合物含有两个π键合环时，环上的取代基的总数等于3至10的数，所述环是不对称取代的，其中取代基的数目为3或4.本发明方法特别 适于制备具有小于约35的MIR的乙烯共聚物，同时保持窄的CD，即使在高共聚单体掺入速率下，并且在某些实施方案中提供具有改进的熔融强度与低MIR的乙烯共聚物。

    Compatible linear and branched ethylenic polymers and foams therefrom
    7.
    发明授权
    Compatible linear and branched ethylenic polymers and foams therefrom 有权

    公开(公告)号：US06716914B2

    公开(公告)日：2004-04-06

    申请号：US10454702

    申请日：2003-06-04

    Applicant: Nelson E. Malwitz ,  Natarajan S. Ramesh ,  Shau-Tarng Lee

    Inventor： Nelson E. Malwitz ,  Natarajan S. Ramesh ,  Shau-Tarng Lee

    IPC: C08F21000

    CPC classification number: C08J9/141 ,  C08J2205/052 ,  C08J2323/02

    Abstract: An expanded cellular ethylenic polymer product is provided from an irradiated, noncross-linked linear ethylenic polymer. Linear ethylenic polymers can be irradiated at ambient conditions sufficient to introduce branching in the polymer in the absence of detectable cross-linking as indicated by the absence of gels. The irradiated linear ethylenic polymer is compatible with highly branched low density polyethylene and, when mixed therewith, produces a resin having a single broad based melting temperature range as determined by direct scanning calorimetry, which indicates that the polymers in the mixture have similar crystallization behavior suitable for producing low density foams by extrusion foaming. The linear polymers can be obtained from recycled shrink wrap film. Low densities of from 0.7 to less than 4 pcf can be achieved. The foams typically have improved tear resistance as compared to previous products prepared from low density polyethylene, at comparable low densities.

    Thermoplastic crosslinked product and heat-sensitive elastic adhesive
    8.
    发明授权
    Thermoplastic crosslinked product and heat-sensitive elastic adhesive 失效
    热塑性交联产品和热敏弹性粘合剂

    公开(公告)号：US06426392B1

    公开(公告)日：2002-07-30

    申请号：US09580558

    申请日：2000-05-30

    Applicant: Makoto Chiba ,  Junji Takase

    Inventor： Makoto Chiba ,  Junji Takase

    IPC: C08F21000

    CPC classification number: C08K5/54 ,  C08F8/42 ,  C08K5/57 ,  C08L43/04

    Abstract: This invention is related to a thermoplastic crosslinked product obtainable by the crosslinking reaction of a composition comprising (A) a polymer having a silicon-containing group and (B) a tetravalent tin compound, said silicon-containing group having a hydrolyzable group bound to a silicon atom and capable of crosslinking through formation of a siloxane bond.

    Abstract translation: 本发明涉及通过包含（A）具有含硅基团的聚合物和（B）四价锡化合物的组合物的交联反应获得的热塑性交联产物，所述含硅基团具有可结合到 硅原子并且能够通过形成硅氧烷键进行交联。

    Propylene/ethylene block copolymer
    9.
    发明授权
    Propylene/ethylene block copolymer 有权
    丙烯/乙烯嵌段共聚物

    公开(公告)号：US06201090B1

    公开(公告)日：2001-03-13

    申请号：US09463983

    申请日：2000-02-16

    Applicant: Takashi Sumitomo ,  Sueto Miyazaki ,  Tsuyoshi Ota ,  Kazuo Sato

    Inventor： Takashi Sumitomo ,  Sueto Miyazaki ,  Tsuyoshi Ota ,  Kazuo Sato

    IPC: C08F21000

    CPC classification number: C08F297/083

    Abstract: Provided are propylene-ethylene block copolymers having the advantage of well-balanced physical properties of rigidity, impact resistance, etc. The propylene-ethylene block copolymers are characterized by (a), (b), (c1), (c2) and (c3): (a) The melt flow rate falls between 0.01 and 1000 g/10 min. (b) The room-temperature xylene-insoluble component has an [mmmm] fraction of not smaller than 98.9%. (cl) The amount of the room-temperature xylene-soluble component falls between 3 and 50% by weight. (c2) The T1 relaxation time component in pulse NMR is of a single relaxation component. (c3) The ethylene content, x % by weight, as measured through 13C-NMR, and the T1 relaxation time satisfy y≦0.0014x3−0.0897x2−1.0593x +231.6. The block copolymers may be characterized by (a), (b), (c1) and (c4): (a) The melt flow rate falls between 0.01 and 1000 g/10 min. (b) The room-temperature xylene-insoluble component has an [mmmm] fraction of not smaller than 98.9%. (c1) The amount of the room-temperature xylene-soluble component falls between 3 and 50 % by weight. (c4) The ethylene content, x% by weight, and the ratio by weight of the crystalline polyethylene segments to the total of the ethylene-propylene copolymer segments and the crystalline polyethylene segments, z (%), as obtained from the TEM (transmission electron microscope) image of the propylene-ethylene block copolymers, satisfy 2≦0.016x2−0.069x−1.34.

    Abstract translation: 丙烯 - 乙烯嵌段共聚物的特征在于（a），（b），（c1），（c2）和（c2）和 c3）：（a）熔体流动速率为0.01-1000g / 10min。 （b）室温二甲苯不溶成分的[mmmm]分数不小于98.9％。 （c1）室温二甲苯可溶成分的量为3〜50重量％。 （c2）脉冲NMR中的T1弛豫时间分量是单个弛豫分量。 （c3）通过13 C-NMR测量的乙烯含量，x重量％，以及T1弛豫时间满足y <= 0.0014×3-0.0897x2-1.0593x + 231.6。嵌段共聚物的特征可以是（a）， （b），（c1）和（c4）：（a）熔体流动速率为0.01-1000g / 10min。 （b）室温二甲苯不溶成分的[mmmm]分数不小于98.9％。 （c1）室温二甲苯可溶成分的量为3〜50重量％。 （c4）从TEM（透射率）获得的乙烯含量，x重量％以及结晶聚乙烯链段的重量比与乙烯 - 丙烯共聚物链段和结晶聚乙烯链段的总和z（％） 电子显微镜）图像的丙烯 - 乙烯嵌段共聚物满足2 <= 0.016x2-0.069x-1.34。

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