公开(公告)号：US20150232711A1

公开(公告)日：2015-08-20

申请号：US14422399

申请日：2013-10-01

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Mridula Kapur ,  Jian Wang ,  Gagan Saini ,  Mustafa Bilgen ,  Troy M. Tambling ,  Robert N. Reib

IPC: C09J123/08

CPC classification number: C09J123/0815 ,  C08F210/16 ,  C08F10/00 ,  C08F4/65925 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/03

Abstract: The instant invention provides a sealant composition, method of producing the same, film layers and multilayer structures made therefrom. The linear low density polyethylene composition suitable for sealant applications according to the present invention comprises: 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 α-olefin comonomers; wherein said linear low density polyethylene composition has a density in the range of 0.900 to 0.920 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 0.5 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 1.0 to 1.2.

Abstract translation: 本发明提供一种密封剂组合物，其制备方法，由其制成的薄膜层和多层结构。 适用于根据本发明的密封剂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; 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在0.900至0.920g / cm 3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0.5至 3克/ 10分钟，分子量分布（Mz / Mw）在2.2至3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1.0到1.2。

公开(公告)号：US20150132514A1

公开(公告)日：2015-05-14

申请号：US14388735

申请日：2013-05-22

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang ,  Nilesh R. Savargaonkar ,  Mehmet Demirors ,  John W. Garnett, IV

IPC: C08J5/18 ,  C08L23/08

CPC classification number: C08J5/18 ,  B29C48/10 ,  B29K2023/0658 ,  C08J2323/08 ,  C08J2423/06 ,  C08L23/08 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/025 ,  Y10T428/1352

Abstract: The instant invention provides a polyethylene blend-composition suitable for blown films, and films made therefrom. The polyethylene blend-composition suitable for blown films comprises the melt blending product of: (a) from 0.5 to 4 percent by weight of a low density polyethylene having a density in the range of from 0.915 to 0.935 g/cm3, and a melt index (I2) in the range of from greater than 0.8 to less than or equal to 5 g/10 minutes, and a molecular weight distribution (Mw/Mn) in the range of from 6 to 10; (b) 90 percent or greater by weight of an ethylene/α-olefin interpolymer composition, wherein ethylene/α-olefin interpolymer composition has a Comonomer Distribution Constant (CDC) in the range of from 75 to 200, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene/α-olefin interpolymer composition; a zero shear viscosity ratio (ZSVR) in the range from 2 to 20; a density in the range of from 0.903 to 0.950 g/cm3, a melt index (12) in a range of from 0.1 to 5 g/10 minutes, a molecular weight distribution (Mw/Mn) in the range of from 1.8 to 3.5; (c) optionally a hydrotalcite based neutralizing agent; (d) optionally one or more nucleating agents; (e) and optionally one or more antioxidants.

Abstract translation: 本发明提供了适用于吹塑薄膜的聚乙烯共混组合物和由其制成的薄膜。 适用于吹塑薄膜的聚乙烯共混物组合物包括熔融共混产物：（a）0.5-4重量％的密度为0.915-0.935g / cm3的低密度聚乙烯，熔体指数 （I 2）在大于0.8至小于或等于5g / 10分钟的范围内，分子量分布（Mw / Mn）在6至10的范围内; （b）90重量％以上的乙烯/α-烯烃互聚物组合物，其中乙烯/α-烯烃互聚物组合物的共聚单体分布常数（CDC）为75〜200，乙烯基不饱和度小于 存在于乙烯/α-烯烃互聚物组合物的骨架中的每1000个碳原子上的0.1个乙烯基; 零剪切粘度比（ZSVR）在2至20的范围内; 浓度范围为0.903〜0.950g / cm3，熔体指数（12）为0.1〜5g / 10分钟，分子量分布（Mw / Mn）为1.8〜3.5 ; （c）任选的基于水滑石的中和剂; （d）任选的一种或多种成核剂; （e）和任选的一种或多种抗氧化剂。

公开(公告)号：US20250026897A1

公开(公告)日：2025-01-23

申请号：US18709160

申请日：2022-11-09

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang

IPC: C08J5/18

Abstract: A film having at least one layer, and the layer includes a multimodal high density polyethylene having: a melt index (I2) that is from 0.8 g/10 min to 5.0 g/10 min; a density that is from 0.950 g/cc to 0.965 g/cc; a polydispersity (Mw/Mn) that is from 10 to 20; and a molecular weight (Mz) that is from 500,000 g/mol to 1,000,000 g/mol. The film is a biaxially oriented polyethylene film.

公开(公告)号：US20240316906A1

公开(公告)日：2024-09-26

申请号：US17754753

申请日：2020-11-11

Applicant: Dow Global Technologies LLC ,  PERFORMANCE MATERIALS NA, INC.

Inventor： Karlheinz Hausmann ,  Justice Alaboson ,  Jian Wang ,  Brayden E. Glad ,  Ronald Wevers ,  Sanjib Biswas ,  Andrew T. Heitsch ,  Mridula Kapur ,  Didem Oner-Deliormanli ,  Joshua B. Gaubert ,  Alexander Williamson ,  Mehmet Demirors

IPC: B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  B32B27/34

CPC classification number: B32B27/08 ,  B32B27/306 ,  B32B27/32 ,  B32B27/34 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2255/205 ,  B32B2307/518 ,  B32B2307/72 ,  B32B2307/7376

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：US20240059825A1

公开(公告)日：2024-02-22

申请号：US17754521

申请日：2020-10-01

Applicant: Dow Global Technologies LLC

Inventor： Yinzhong Guo ,  Tuoqi Li ,  Sudhanwa Dewasthale ,  Jian Wang ,  Thorsten Schmidt

IPC: C08G18/62 ,  B32B7/12 ,  B32B27/08 ,  B32B27/32 ,  B32B37/12 ,  B65D65/40 ,  C08G18/36 ,  C08G18/65 ,  C08G18/79 ,  C09J5/00 ,  C09J175/04

CPC classification number: C08G18/6208 ,  B32B7/12 ,  B32B27/08 ,  B32B27/32 ,  B32B37/1284 ,  B65D65/40 ,  C08G18/36 ,  C08G18/6547 ,  C08G18/792 ,  C09J5/00 ,  C09J175/04 ,  B32B2250/02 ,  B32B2250/242 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/306 ,  B32B2307/31 ,  B32B2307/518 ,  B32B2307/54 ,  B32B2307/748 ,  B32B2553/00

Abstract: A polyolefin-based laminating adhesive composition for use in producing a mechanical recyclable material, the adhesive composition including a mixture of: (a) at least one saturated polyolefin polyol; and (b) at least one aliphatic multi-functional isocyanate compound; a process for producing the above adhesive composition; a mechanically recyclable multi-layer laminate including: (A) at least one first film substrate layer; (B) at least one second film substrate layer; and (C) at least one layer of the above polyolefin-based laminating adhesive composition; wherein the at least one first film substrate layer is bonded to the at least one second film substrate layer via the adhesive composition layer; a process for producing the above mechanically recyclable multi-layer laminate; and a packaging article made from the above mechanically recyclable multi-layer laminate.

公开(公告)号：US11667104B2

公开(公告)日：2023-06-06

申请号：US16644795

申请日：2017-09-05

Applicant: Dow Global Technologies LLC

Inventor： Rou Hua Chua ,  Wu Aik Yee ,  Bee Tin Low ,  Muthu Selva Annamalai Subramanian ,  Yutaka Maehara ,  Jian Wang

IPC: B29C48/08 ,  B29C48/21 ,  B29C48/00 ,  B29C55/06 ,  B29K96/04 ,  B29K105/00 ,  B32B7/02 ,  B32B27/08 ,  B32B27/32 ,  B29K23/00

CPC classification number: B32B7/02 ,  B29C48/0018 ,  B29C48/08 ,  B29C48/21 ,  B29C55/06 ,  B32B27/08 ,  B32B27/32 ,  B29K2023/08 ,  B29K2096/04 ,  B29K2105/0085 ,  B29K2995/0018 ,  B29K2995/0051 ,  B32B2250/02 ,  B32B2250/242 ,  B32B2307/40 ,  B32B2307/516

Abstract: The present disclosure provides a process. In an embodiment, the process includes elongating a multilayer film to a impart a haze value greater than 30% to the multilayer film. The multilayer film has at least two layers: (A) a core layer composed of an ethylene/α-olefin multi-block copolymer and (B) a first skin layer in contact with the core layer, the skin layer composed of an ethylene-based polymer. The process includes releasing the elongating force from the elongated multilayer film to form a hazed multilayer film having a haze value greater than 30%. The process includes stretching the hazed multilayer film to form a stretched multilayer film having a clarity value greater than 80%. The process includes relaxing the stretch force from the stretched multilayer film to form a relaxed multilayer film having a haze value greater than 30%.

公开(公告)号：US20230118316A1

公开(公告)日：2023-04-20

申请号：US17906227

申请日：2021-03-25

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang ,  Karlheinz Hausmann ,  Sanjib Biswas ,  Brayden E. Glad ,  Douglas S. Ginger ,  Justice Alaboson ,  Ronald Wevers

IPC: B32B27/08 ,  B32B27/32 ,  B32B27/34 ,  C08L23/06 ,  B32B15/085 ,  B32B27/18 ,  B32B27/30 ,  B32B7/03 ,  B32B38/18

Abstract: The present invention relates to oriented, multilayer polyethylene films. In one aspect, a biaxially oriented, multilayer polyethylene film comprises at least one 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 a polyethylene composition comprising: (i) from 25 to 37 percent by weight of a first polyethylene fraction having a density in the range of 0.935 to 0.947 g/cm3 and a melt index (I2) of less than 0.1 g/10 minutes; and (ii) from 63 to 75 percent by weight of a second polyethylene fraction; wherein the polyethylene composition has less than 0.10 branches per 1,000 carbon atoms when measured using 13C NMR, wherein the density of the polyethylene-based composition is at least 0.965 g/cm3, and wherein the melt index (I2) of the polyethylene-based composition is 0.5 to 10 g/10 minutes.

公开(公告)号：US11312844B2

公开(公告)日：2022-04-26

申请号：US16304893

申请日：2016-07-28

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang ,  Jichang Feng ,  Xiao Bing Yun ,  Mehmet Demirors ,  Edward L. Lee ,  Hayley A. Brown ,  Bin Li

IPC: C08J9/06 ,  C08L23/06 ,  C08J9/00 ,  C08L23/08

Abstract: A composition suitable for making uncrosslinked polyethylene foam and an uncrosslinked polyethylene foam comprising: 50-95 wt. % of a low density polyethylene having a density ranging from 0.915 to 0.930 g/cc and melt index of 1-4 g/10 min; and 5-50 wt. % of an ethylene/alpha-olefin interpolymer having: a density ranging from 0.910-0.930 g/cc; a melt index ranging from 0.5 to 6.0 g/10 min; a Mw/Mn of from 2.8 to 4.5; and a ZSVR of 1.8 to 10.0.

公开(公告)号：US11174600B2

公开(公告)日：2021-11-16

申请号：US15318200

申请日：2015-06-26

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang ,  Pradeep Jain ,  Mehmet Demirors ,  Rajen M. Patel ,  Joseph L. Deavenport ,  David Lopez

IPC: E01C13/08 ,  C08J5/18 ,  C08L23/08 ,  D02G3/44 ,  D01F6/46 ,  D06N7/00 ,  C08F210/16 ,  C08J5/00 ,  B32B5/00 ,  B32B5/02 ,  B32B7/00 ,  B32B7/02 ,  B32B27/06 ,  B32B27/18 ,  B32B27/20 ,  B32B27/28 ,  B32B27/30 ,  B32B27/32 ,  D02G3/02 ,  A61F13/514 ,  B32B27/08 ,  B32B27/12 ,  C08K3/26

Abstract: Artificial turf filaments formed from polyethylene are provided that can have desirable properties. In one aspect, an artificial turf filament comprises a composition comprising a first composition, wherein the first composition comprises at least one ethylene-based polymer and wherein the first composition comprises a MWCDI value greater than 0.9, and a melt index ratio (I10/I2) that meets the following equation: I10/I2≥7.0−1.2×log (I2).

公开(公告)号：US10696828B2

公开(公告)日：2020-06-30

申请号：US16066895

申请日：2017-02-22

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang ,  Mridula Kapur ,  Mehmet Demirors ,  Douglas S. Ginger ,  Philip P. Fontaine ,  Amaia Bastero ,  David Lopez

IPC: C08L23/08 ,  C08F210/16

Abstract: An ethylene/alpha-olefin copolymer composition having a density from 0.935 to 0.955 g/cc; a ratio of weight average molecular weight to number average molecular weight, Mw/Mn, of from 3 to 10; a z-average molecular weight, Mz, from 200 kg/mol to 500 kg/mol; and a PENT value of greater than 500 hours at 80° C. and 2.4 MPa; wherein when the composition is formed into a monolayer pipe the pipe has a pipe hydrostatic strength of greater than 100 hours at 20° C. and 12.0 MPa. Also provided is a pipe or pipe fitting comprising the ethylene/alpha-olefin copolymer composition.