公开(公告)号：US20150284523A1

公开(公告)日：2015-10-08

申请号：US14443435

申请日：2013-11-19

Applicant: Mridula KAPUR ,  Jian WANG ,  Yajian LIN ,  Troy TAMBLING ,  Robert REIB ,  DOW GLOBAL TECHNOLOGIES LLC

Inventor： Mridula Kapur ,  Jian Wang ,  Yijian Lin ,  Troy M. Tambling ,  Robert N. Reib

IPC: C08J5/18

CPC classification number: C08J5/18 ,  C08J2323/08 ,  C08L23/0807

Abstract: The instant invention provides a polyethylene composition suitable for film applications and film made therefrom. The linear low density polyethylene composition suitable for film applications according to the present invention comprises: less than or equal to 100 percent by weight of the units derived from ethylene; and less than 35 percent by weight of units derived from one or more α-olefin comonomers; wherein said linear low density polyethylene composition has a density in the range of from 0.890 to 0.915 g/cm3, a molecular weight distribution (Mw/Mn) in the range of from 2.5 to 4.5, a melt index (12) in the range of from 2 to 10 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.

Abstract translation: 本发明提供了适用于薄膜应用的聚乙烯组合物和由其制成的薄膜。 适用于根据本发明的膜应用的线性低密度聚乙烯组合物包含：小于或等于100重量％的衍生自乙烯的单元; 和少于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0.890至0.915g / cm3，分子量分布（Mw / Mn）在2.5至4.5的范围内，熔体指数（12）在 2至10g / 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）在2.2至3的范围内，乙烯基不饱和度小于0.1个乙烯基，并且零 剪切粘度比（ZSVR）在1〜1​​.2的范围内。

公开(公告)号：US20150240000A1

公开(公告)日：2015-08-27

申请号：US14432219

申请日：2013-10-01

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Jian Wang ,  Mridula Kapur ,  Yijian Lin ,  Lawrence J. Effler, JR. ,  Troy M. Tambling ,  Robert N. Reib

IPC: C08F110/02 ,  C08J5/18 ,  C08L23/06

CPC classification number: C08F110/02 ,  C08J5/18 ,  C08L23/06 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/025

Abstract: The instant invention provides a polyethylene composition suitable for stretch film applications and, method of producing the same, and cast film made therefrom. The linear low density polyethylene composition suitable for stretch film applications according to the present invention comprises: less than or equal to 100 percent by weight of the units derived from ethylene; and less than 35 percent by weight of units derived from one or more α-olefin comonomers; wherein said linear low density polyethylene composition has a density in the range of from 0.900 to 0.930 g/cm3, a molecular weight distribution (Mw/Mn) in the range of from 2.5 to 4.5, a melt index (I2) in the range of from 0.3 to 10 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.

Abstract translation: 本发明提供了适用于拉伸膜应用的聚乙烯组合物及其制备方法，以及由其制成的流延薄膜。 适用于根据本发明的拉伸膜应用的线性低密度聚乙烯组合物包含：小于或等于100重量％的衍生自乙烯的单元; 和少于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0.900-0.930g / cm3，分子量分布（Mw / Mn）在2.5-4.5范围内，熔体指数（I2）在 0.3至10g / 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）在2.2至3的范围内，乙烯基不饱和度小于0.1个乙烯基，并且零 剪切粘度比（ZSVR）在1〜1​​.2的范围内。

公开(公告)号：US20240424768A1

公开(公告)日：2024-12-26

申请号：US17756165

申请日：2020-11-11

Applicant: Dow Global Technologies LLC

Inventor： Justice Alaboson ,  Karlheinz Hausmann ,  Jian Wang ,  Yijian Lin ,  Cristina Serrat ,  Martin Hill

IPC: B32B27/08 ,  B32B7/12 ,  B32B27/30 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36

Abstract: The present invention relates to oriented, multilayer polyethylene films. In one aspect, a biaxially oriented, multilayer polyethylene film comprises: at least one inner layer comprising: (1) a polyethylene-based composition that comprises: (a) at least 97% by weight, based on the total weight of the polyethylene-based composition, of one or more polyethylenes having a density between 0.926 g/cm3 to 0.970 g/cm3 and a melt index (I2) between 0.1 to 10 g/10 min; (b) 20 to 5000 ppm, based on the total weight of the polyethylene-based composition of a sorbitol acetal derivative comprising the structure of formula (I): wherein R1-R5 comprise the same or different moieties chosen from hydrogen and a C1-C3 alkyl.

公开(公告)号：US12110371B2

公开(公告)日：2024-10-08

申请号：US17206918

申请日：2021-03-19

Applicant: Dow Global Technologies LLC

Inventor： Yijian Lin ,  Mehmet Demirors ,  Jianping Pan ,  Xiao B. Yun

IPC: B32B27/32 ,  B29C48/08 ,  B29C48/21 ,  B32B27/08 ,  B32B27/16 ,  B32B27/20 ,  C08J5/18 ,  C08L23/06 ,  B29C48/00 ,  B29K23/00

CPC classification number: C08J5/18 ,  B29C48/08 ,  B29C48/21 ,  B32B27/08 ,  B32B27/16 ,  B32B27/205 ,  B32B27/32 ,  C08L23/06 ,  B29C48/0018 ,  B29K2023/0625 ,  B32B2250/242 ,  B32B2307/518 ,  B32B2307/54 ,  B32B2307/72 ,  C08J2323/06 ,  C08J2423/06 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2314/02

Abstract: A first oriented film comprising a first polyethylene composition which comprises: from 20 to 50 wt % of a first linear low density polyethylene polymer having a density greater than 0.925 g/cc and an I2 lower than 2 g/10 min; and from 80 to 50 wt % of a second linear low density polyethylene polymer having a density lower than or equal to 0.925 g/cc and an I2 greater than or equal to 2 g/10 min; wherein the first polyethylene composition has an I2 from 0.5 to 10 g/10 min and a density from 0.910 to 0.940 g/cc is provided.

公开(公告)号：US12104301B2

公开(公告)日：2024-10-01

申请号：US17293188

申请日：2019-11-20

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Mehmet Demirors ,  Fabricio Arteaga Larios ,  Mridula Kapur ,  Philip P. Fontaine ,  David T. Gillespie ,  Yijian Lin ,  Lanhe Zhang ,  Sanjib Biswas ,  Eduardo Alvarez ,  Aleksandar Stoiljkovic ,  Rajen M. Patel

IPC: D04H3/007 ,  C08F210/16 ,  D01F6/46 ,  D01F8/06 ,  D04H1/4291

CPC classification number: D04H3/007 ,  D01F6/46 ,  D01F8/06 ,  D04H1/4291 ,  C08F210/16 ,  C08F2500/03 ,  C08F2500/06 ,  C08F2500/12 ,  D10B2321/021 ,  D10B2321/022 ,  C08F210/16 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/03 ,  C08F2500/02 ,  C08F2500/06 ,  C08F2500/29 ,  C08F210/16 ,  C08F2/001 ,  C08F210/16 ,  C08F4/64193

Abstract: A nonwoven fabric comprises at least one fiber having a first component prepared from at least 75 wt. % of bimodalethylene/alpha-olefin interpolymer composition, wherein the ethylene/alpha-olefin interpolymer composition is characterized by: a density in the range of 0.930 to 0.965 g/cm3, a melt index (I2) in the range of from 10 to 60 g/10 minutes, wherein the I2 is measured according to ASTM D1238, 190 C, 2.16 kg, a molecular weight distribution, expressed as the ratio of the weight average molecular weight to number average molecular weight (Mw(GPC)/Mn(GPC)) as determined by GPC of from 1.5 to 2.6, a tan delta at 1 radian/second of at least 45, a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure, and a full width at half maximum of the high temperature peak is less than 6.0° C.

公开(公告)号：US11680119B2

公开(公告)日：2023-06-20

申请号：US16956083

申请日：2018-12-19

Applicant: Dow Global Technologies LLC

Inventor： Daniela Ferrari ,  Alec Y. Wang ,  Pradeep Jain ,  Yijian Lin

IPC: C08F210/16 ,  C08L23/16 ,  C08F4/64 ,  C08J5/18 ,  C08F2/00

CPC classification number: C08F210/16 ,  C08J5/18 ,  C08L23/16 ,  C08F2/001 ,  C08F4/64193 ,  C08F2410/04 ,  C08J2323/08

Abstract: Embodiments of a method of producing a multimodal ethylene-based polymer comprising a first catalyst and a second catalyst in a first solution polymerization reactor and a third catalyst in a second solution polymerization reactor.

公开(公告)号：US20230036612A1

公开(公告)日：2023-02-02

申请号：US17755394

申请日：2020-11-04

Applicant: Dow Global Technologies LLC

Inventor： Jong Young Lee ,  Yijian Lin ,  Kyle D. Anderson ,  Aleksandar Stoiljkovic ,  Arnaldo T. Lorenzo ,  Stacy L. Pesek ,  Ronald Wevers

IPC: C08K5/20

Abstract: An elastic film-forming thermoplastic elastomer resin composition for forming an elastic film including: (a) at least one thermoplastic elastomer such as an olefinic block copolymer; and (b) at least one specific nucleation agent; wherein the resulting blended resin composition of components (a) and (b) improves the elastic performance (e.g., physical properties of elasticity such as retractive force, hysteresis, and immediate set) of a cast film made from the above resin blend composition; and an elastic film made from the above resin blend composition.

公开(公告)号：US11260633B2

公开(公告)日：2022-03-01

申请号：US16094619

申请日：2017-06-28

Applicant: Dow Global Technologies LLC

Inventor： Yijian Lin ,  Wenyi Huang ,  Selim Bensason

IPC: B32B27/08 ,  B32B27/28 ,  B32B27/30 ,  B32B27/32 ,  B32B38/00 ,  B32B7/035 ,  B65D65/40 ,  B32B27/20 ,  B32B27/34 ,  B32B7/02

Abstract: The present invention provides multilayer films, packages formed from such films, and methods of making multilayer films. In one aspect, a multilayer film comprises multilayer film comprising at least 3 layers, each layer having opposing facial surfaces and arranged in the order A/B/C, wherein a top facial surface of Layer B is in adhering contact with a bottom facial surface of Layer A; wherein a top facial surface of Layer C is in adhering contact with a bottom facial surface of Layer B, wherein the film is oriented in the machine direction and wherein the film exhibits a normalized carbon dioxide transmission rate of at least 3000 cm3·mil/100 in2/day, and wherein the film exhibits a ratio of the carbon dioxide transmission rate to an oxygen transmission rate of at least 4.0.

公开(公告)号：US20200332036A1

公开(公告)日：2020-10-22

申请号：US16956176

申请日：2018-12-19

Applicant: Dow Global Technologies LLC

Inventor： Didem Oner-Deliormanli ,  Yijian Lin ,  Mehmet Demirors ,  Jong-young Lee ,  David T. Gillespie

IPC: C08F210/16 ,  C08L23/08 ,  C08J5/18 ,  B32B27/32 ,  B32B27/08

Abstract: Embodiments of a polymer compositions and articles comprising such compositions contain at least one multimodal ethylene-based polymer, wherein the multimodal ethylene-based polymer exhibits superior low temperature performance.

公开(公告)号：US10793688B2

公开(公告)日：2020-10-06

申请号：US16095810

申请日：2017-05-30

Applicant: Dow Global Technologies LLC

Inventor： Wenyi Huang ,  Yijian Lin ,  Selim Bensason ,  Jacquelyn A. Deg root ,  Joseph L. Deavenport

IPC: C08J5/18 ,  B32B27/32 ,  B32B27/36 ,  B32B27/30 ,  B32B27/08 ,  B32B3/26 ,  B32B27/20 ,  B32B27/12 ,  B32B5/26 ,  B32B27/28 ,  B32B5/02 ,  B29C55/02

Abstract: A microporous film comprising: 75 wt. % or greater of a high density polyethylene resin having a density of 0.957 g/cc-0.970 g/cc, a melt index of from 0.2 to 10 g/10 minutes, a molecular weight distribution, Mw,cc/Mn,cc, of greater than or equal to 6.0, and a Mz,abs of greater than or equal to 500,000 g/mol, wherein the microporous film is oriented in the machine direction and exhibits a normalized water vapor transmission rate greater than 50 g mil/(100 in2·day).