公开(公告)号：US20070293640A1

公开(公告)日：2007-12-20

申请号：US11888876

申请日：2007-08-02

申请人： Peijun Jiang ,  Armenag Dekmezian ,  Jo Ann Canich ,  Charles Sims ,  Ramin Abhari ,  Cesar Garcia-Franco ,  David Johnsrud

发明人： Peijun Jiang ,  Armenag Dekmezian ,  Jo Ann Canich ,  Charles Sims ,  Ramin Abhari ,  Cesar Garcia-Franco ,  David Johnsrud

IPC分类号： C08F4/44 ,  C08F10/14

CPC分类号： C09J123/12 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/6592 ,  C08F4/65927 ,  C08F10/00 ,  C08F110/06 ,  C08F210/06 ,  C08L57/02 ,  C08L2666/02 ,  C09J5/00 ,  C09J7/20 ,  C09J123/10 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2205/31 ,  C09J2401/006 ,  C09J2421/00 ,  C09J2423/006 ,  C09J2423/046 ,  C09J2423/106 ,  C09J2427/006 ,  C09J2433/00 ,  Y10S526/943 ,  C08F4/65904 ,  C08F2500/15 ,  C08F2500/05 ,  C08F2500/20 ,  C08F2500/17 ,  C08F2500/09 ,  C08F2500/12 ,  C08F236/20 ,  C08F2500/03 ,  C08F210/16 ,  C08F4/63904

摘要： This invention relates to a polymer comprising one or more C3 to C40 olefins, optionally one or more diolefins, and less than 15 mole % of ethylene, where the polymer has: a) a Dot T-Peel of 1 Newton or more; and b) a branching index (g′) of 0.95 or less measured at the Mz of the polymer; c) an Mw of 100,000 or less. This invention also relates a polymer comprising one or more C3 to C40 olefins where the polymer has: a) a Dot T-Peel of 1 Newton or more on Kraft paper; b) a branching index (g′) of 0.95 or less measured at the Mz of the polymer; c) a Mw of 10,000 to 100,000; and d) a heat of fusion of 1 to 70 J/g. This invention also relates a polymer comprising one or more C3 to C40 olefins where the polymer has: a) a Dot T-Peel of 1 Newton or more on Kraft paper; b) a branching index (g′) of 0.98 or less measured at the Mz of the polymer; c) a Mw of 10,000 to 60,000; d) a heat of fusion of 1 to 50 J/g. This invention also relates to a homopolypropylene or a copolymer of propylene and up to 5 mole % ethylene having: a) an isotactic run length of 1 to 30 (isotactic run length “IRL” is defined to be the percent of mmmm pentad divided by 0.5× percent of mmmr pentad) as determined by Carbon 13 NMR, preferably 3 to 25, more preferably 4 to 20, b) a percent of r dyad of greater than 20%, preferably from 20 to 70% as determined by Carbon 13 NMR, and c) a heat of fusion of 70 J/g or less, preferably 60 J/g or less, more preferably between 1 and 55 J/g, more preferably between 4 and 50 J/g. This invention further relates to a process to produce an olefin polymer comprising: 1) selecting a first catalyst component capable of producing a polymer having an Mw of 100,000 or less and a crystallinity of 5% or less at selected polymerization conditions; 2) selecting a second catalyst component capable of producing polymer having an Mw of 100,000 or less and a crystallinity of 20% or more at the selected polymerization conditions; 3) contacting the catalyst components in the presence of one or more activators with one or more C3 to C40 olefins, at the selected polymerization conditions in a reaction zone; 4) obtaining the polymer. This invention further relates to a continuous process to produce a branched olefin polymer comprising: 1) selecting a first catalyst component capable of producing a polymer having an Mw of 100,000 or less and a crystallinity of 5% or less under selected polymerization conditions; 2) selecting a second catalyst component capable of producing polymer having an Mw of 100,000 or less and a crystallinity of 20% or more at the selected polymerization conditions; 3) contacting the catalyst components in the presence of one or more activators with one or more C3 to C40 olefins, and, optionally one or more diolefins; 4) at a temperature of greater than 100° C.; 5) at a residence time of 120 minutes or less; 6) wherein the ratio of the first catalyst to the second catalyst is from 1:1 to 50:1; 7) wherein the activity of the catalyst components is at least 100 kilograms of polymer per gram of the catalyst components; and wherein at least 20% of the olefins are converted to polymer.

公开(公告)号：US20070135583A1

公开(公告)日：2007-06-14

申请号：US11296999

申请日：2005-12-08

申请人： David Lohse ,  Cesar Garcia-Franco ,  Nikos Hadjichristidis

发明人： David Lohse ,  Cesar Garcia-Franco ,  Nikos Hadjichristidis

IPC分类号： C08F236/00

CPC分类号： C08C19/44 ,  C08C19/02 ,  C08F36/04 ,  C08F110/02 ,  C08F236/10 ,  C08F255/02 ,  C08G83/003 ,  C08L9/00 ,  C08L23/0815 ,  C08L51/06 ,  C08L101/005 ,  C08L2205/14 ,  C08L2205/16 ,  C08L2666/06 ,  C08L2666/02 ,  C08L2666/04 ,  C08F4/48 ,  C08F2500/09

摘要： The present invention relates to a method to produce highly branched polymers with a polyolefin backbone structure of ethylene and precise control of the nature of the branching. In particular, the distribution of branch length and number of branches can be more precisely controlled via the polymerization method of the present invention. The method comprises using anionic chemistry to make unsaturated polydienes with a well-defined, highly-branched structure, and then hydrogenating these polydienes to form highly branched or dendritic saturated hydrocarbon polymers. Highly branched or dendritic polyethylene, ethylene-propylene copolymer and atactic polypropylene are among the saturated hydrocarbon polymers that can be anionically synthesized via the proper selection of diene monomer type, coupling agent, and hydrogenation conditions. The highly branched or dendritic saturated hydrocarbon polymers of the present invention find application in injection molding and extrusion processes as a minor additive for improving processability of linear polyolefins by delaying the onset of melt fracture, and correspondingly increasing melt throughput rates. An additional benefit is that the mechanical properties of the polyolefinic film, sheet, pipe or fiber produced with minor amounts of highly branched or dendritic saturated hydrocarbon polymers of the present disclosure are not negatively impacted.

摘要翻译： 本发明涉及一种生产具有乙烯聚烯烃骨架结构的高度支化聚合物的方法，并且精确控制了支化性质。 特别地，可以通过本发明的聚合方法更精确地控制分支长度和分支数的分布。 该方法包括使用阴离子化学制备具有明确定义的高支化结构的不饱和聚二烯，然后将这些聚二烯氢化形成高度支化或树枝状饱和烃聚合物。 高分支或树枝状聚乙烯，乙烯 - 丙烯共聚物和无规立构聚丙烯是通过二烯单体类型，偶联剂和氢化条件的适当选择可阴离子合成的饱和烃聚合物之一。 本发明的高度支化或树枝状饱和烃聚合物可用于注射成型和挤出方法，作为通过延迟熔体破裂开始并改善熔体通过速率来改善线性聚烯烃的加工性的次要添加剂。 另外的好处是，用本发明的少量高支化或树枝状饱和烃聚合物生产的聚烯烃膜，片，管或纤维的机械性能不会受到负面影响。

公开(公告)号：US20050244974A1

公开(公告)日：2005-11-03

申请号：US10823460

申请日：2004-04-13

申请人： Cesar Garcia-Franco ,  David Lohse ,  Bruce Harrington ,  Robert Wittenbrink

发明人： Cesar Garcia-Franco ,  David Lohse ,  Bruce Harrington ,  Robert Wittenbrink

IPC分类号： G01N33/44

CPC分类号： G01N33/445 ,  Y10T436/13 ,  Y10T436/25

摘要： A high throughput method to determine an amount of a comonomer in a copolymer sample of a copolymer system comprises the steps of providing a plurality of copolymer samples; creating an array of the copolymer samples; measuring a sample complex modulus of each of the copolymer samples at a comparison phase angle; and determining the amount of a comonomer in the copolymer sample by comparing the sample complex modulus to a calibration curve, wherein the calibration curve relates a concentration of the comonomer in the copolymer sample to a complex moduli of the copolymer sample determined at the comparison phase angle. A method of determining the amount of a comonomer in both a single copolymer sample, and in a high throughput scheme using the crossover modulus is also disclosed.

摘要翻译： 用于确定共聚物体系的共聚物样品中共聚单体的量的高通量方法包括提供多个共聚物样品的步骤; 产生共聚物样品阵列; 以比较相位角测量每个共聚物样品的样品复数模量; 并且通过将样品复合物模量与校准曲线进行比较来确定共聚物样品中的共聚单体的量，其中校准曲线将共聚物样品中的共聚单体的浓度与在比较相位角处确定的共聚物样品的复数模量相关 。 还公开了在单一共聚物样品中以及使用交叉模量的高通量方案中测定共聚单体的量的方法。