公开(公告)号：US20150232680A1

公开(公告)日：2015-08-20

申请号：US14422036

申请日：2013-10-01

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang ,  Mridula Kapur ,  James L. Cooper

IPC: C09D123/08 ,  C08L23/08

CPC classification number: C09D123/0815 ,  B32B27/32 ,  C08L23/06 ,  C08L23/0807 ,  C08L23/0815

Abstract: The instant invention provides a polyolefin blend composition suitable for extrusion coating or extrusion lamination applications, and multilayer structure and articles made therefrom. The polyolefin blend composition suitable for extrusion coating or extrusion lamination applications according to the present invention comprises (a) a linear low density polyethylene composition comprising: less than or equal to 100 percent by weight of the units derived from ethylene; less than 35 percent by weight of units derived from one or more ?-olefin comonomers; wherein said polyethylene composition has a density in the range of 0.890 to 0.940 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 2.5 to 4.5, a melt index (I2) in the range of 4 to 30 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of from 2.0 to 3, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of said composition, and a zero shear viscosity ratio (ZSVR) in the range from 1 to 1.2; and (b) less than 50 percent by weight of a low density polyethylene composition having a density in the range of 0.915 to 0.930 g/cm3, a melt index (I2) in the range of 0.1 to 10 g/10 minutes, and a molecular weight distribution (Mw/Mn) in the range of 6 to 15.

Abstract translation: 本发明提供了适用于挤出涂布或挤出层压应用的聚烯烃共混组合物，以及由其制成的多层结构和制品。 适用于根据本发明的挤出涂布或挤出层压应用的聚烯烃共混物组合物包含（a）线性低密度聚乙烯组合物，其包含：小于或等于100重量％的衍生自乙烯的单元; 少于35重量％的衍生自一种或多种α-烯烃共聚单体的单元; 其中所述聚乙烯组合物的密度在0.890至0.940g / cm3范围内，分子量分布（Mw / Mn）在2.5至4.5的范围内，熔体指数（I 2）在4-30g / 10分钟，存在于所述组合物的骨架中的每1000个碳原子的分子量分布（Mz / Mw）为2.0-3，乙烯基不饱和度小于0.1个乙烯基，零剪切粘度比（ZSVR） 在1到1.2的范围内; 和（b）小于50重量％的密度在0.915-0.930g / cm3范围内的熔融指数（I 2）在0.1-10g / 10分钟范围内的低密度聚乙烯组合物和 分子量分布（Mw / Mn）在6〜15的范围内。

公开(公告)号：US20150210840A1

公开(公告)日：2015-07-30

申请号：US14424777

申请日：2013-10-01

Applicant: DOW GLOBAL TECHNOLOGIES, LLC

Inventor： Mridula Kapur ,  Jian Wang ,  Ayush A. Bafna

IPC: C08L23/08

CPC classification number: C08L23/0815 ,  C08L2203/16 ,  C08L2205/025

Abstract: The instant invention provides a polyolefin blend composition suitable for film applications, and films made therefrom. The polyolefin blend suitable for film applications according to the present invention comprises: (a) a linear low density polyethylene composition comprising: g: (i) less than or equal to 100 percent by weight of the units derived from ethylene; and (ii) less than 35 percent by weight of units derived from one or more ?-olefin comonomers; wherein said linear low density polyethylene composition has a density in the range of 0.905 to 0.925 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 2.5 to 4.5, a melt index (I2) in the range of 0.1 to 3 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of from 2.2 to 3, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of said composition, and a zero shear viscosity ratio (ZSVR) in the range from 1 to 1.2; and (b) from 10 to 30 percent by weight of a low density polyethylene composition having a density in the range of 0.915 to 0.930 g/cm3, a melt index (I2) in the range of 0.1 to 5 g/10 minutes, and a molecular weight distribution (Mw/Mn) in the range of 6 to 10.

Abstract translation: 本发明提供了适用于薄膜应用的聚烯烃共混组合物和由其制成的薄膜。 适用于根据本发明的薄膜应用的聚烯烃共混物包括：（a）线性低密度聚乙烯组合物，其包含：g：（i）小于或等于100重量％的衍生自乙烯的单元; 和（ii）少于35重量％的衍生自一种或多种α-烯烃共聚单体的单元; 其中所述线性低密度聚乙烯组合物的密度范围为0.905至0.925g / cm3，分子量分布（Mw / Mn）在2.5至4.5的范围内，熔体指数（I 2）在0.1至 3g / 10分钟，分子量分布（Mz / Mw）在2.2至3的范围内，乙烯基不饱和度小于0.1个乙烯基，每1000个碳原子存在于所述组合物的主链中，零剪切粘度比 （ZSVR）范围为1〜1.2; 和（b）10〜30重量％的密度为0.915〜0.930g / cm 3，熔体指数（I 2）为0.1〜5g / 10分钟的低密度聚乙烯组合物，以及 分子量分布（Mw / Mn）在6〜10的范围内。

公开(公告)号：US08859704B2

公开(公告)日：2014-10-14

申请号：US13858640

申请日：2013-04-08

Applicant: Dow Global Technologies LLC

Inventor： Teresa P. Karjala ,  Christopher R. Eddy ,  Mehmet Demirors ,  Wallace W. Yau ,  Sarat Munjal ,  Stefan Hinrichs ,  Jian Wang ,  Otto J. Berbee ,  Werner Zschoch ,  Cornelis J. Hosman ,  Lonnie G. Hazlitt

IPC: C08F10/02 ,  C08F110/02 ,  C08F2/38 ,  B01J19/24

CPC classification number: C08F10/02 ,  C08F110/02 ,  Y10S526/917 ,  C08F2/01 ,  C08F2/001 ,  C08F2/38 ,  C08F2/00 ,  C08F2500/08 ,  C08F2500/12 ,  C08F2500/20 ,  C08F2500/04

Abstract: Disclosed is an ethylene-based polymer with a density from about 0.90 to about 0.94 in grams per cubic centimeter, with a molecular weight distribution (Mw/Mn) from about 2 to about 30, a melt index (I2) from about 0.1 to about 50 grams per 10 minutes, and further comprising sulfur from about 5 to about 4000 parts per million. The amount of sulfur is also determined based upon the total weight of the ethylene-based polymer. Also disclosed is process for making an ethylene-based polymer which includes the steps of splitting a process fluid for delivery into a tubular reactor; feeding an upstream process feed stream into a first reaction zone and at least one downstream process feed stream into at least one other reaction zone, where the process fluid has an average velocity of at least 10 meters per second; and initiating a free-radical polymerization reaction.

Abstract translation: 公开了密度为约0.90至约0.94（克/立方厘米）的乙烯基聚合物，分子量分布（Mw / Mn）为约2至约30，熔体指数（I 2）为约0.1至约 50克/ 10分钟，还含有约5至约4000ppm的硫。 硫的量也基于乙烯类聚合物的总重量来确定。 还公开了制备基于乙烯的聚合物的方法，其包括将工艺流体分离成管式反应器的步骤; 将上游工艺进料流进料到第一反应区和至少一个下游工艺进料流进入至少一个其它反应区，其中工艺流体的平均速度为至少10米/秒; 并引发自由基聚合反应。