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公开(公告)号：US20200255608A1
公开(公告)日：2020-08-13
申请号：US16648556
申请日：2018-10-08
Applicant: Dow Global Technologies LLC
Inventor： Wu Aik Yee , Yijian Lin , Rajen M. Patel , Fabricio Arteaga Larios , Jacquelyn A. Degroot , Mridula Kapur , Yutaka Maehara
Abstract: A uniaxially-oriented ethylene-based polymeric film having at least one layer comprising at least 65 wt. %, based on total amount of materials present in the at least one layer, of a linear low density polyethylene which exhibits each of the following properties: a CDBI of at least 60%; a melt index, 12, measured according to ASTM D 1238 (2.16 kg @190° C.), of 1.8 g/10 min to 10 g/10 min; a density of from 0.910 g/cc to 0.940 g/cc; and a Mw/Mn of less than 3.0.
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公开(公告)号：US11230641B2
公开(公告)日：2022-01-25
申请号：US15747917
申请日：2016-07-21
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： Jacquelyn A. Degroot , Thor E. Gardarsson , Lisa S. Madenjian
IPC: C08L53/00 , B32B5/02 , B32B27/08 , B32B27/12 , B32B27/32 , B32B27/28 , B32B7/12 , B32B37/15 , B29C48/00 , B29K23/00 , B29K96/04 , B29K105/00 , B29L31/48 , B32B38/00
Abstract: Disclosed herein is a film comprising a polymer blend, the polymer blend comprising a first polyolefin elastomer having a weight average molecular weight of 120,000 to 350,000 grams per mole; and a second polyolefin elastomer having a weight average molecular weight of 15,000 to 75,000 grams per mole; wherein the overall melt index of the polymer blend is less than 8 g/10 minutes when measured as per ASTM D1238 at 2.16 kilograms at 190° C. Disclosed herein too is a method of manufacturing a film comprising blending a first polyolefin elastomer having a weight average molecular weight of 120,000 to 350,000 grams per mole; and a second polyolefin elastomer having a weight average molecular weight of 15,000 to 75,000 grams per mole to form a polymer blend; wherein the overall melt index of the polymer blend is less than 8 g/10 minutes when measured as per ASTM D1238 at 2.16 kilograms at 190° C.; and forming the polymer blend into a film.
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公开(公告)号：US20170246846A1
公开(公告)日：2017-08-31
申请号：US15509235
申请日：2015-09-21
Applicant: Dow Global Technologies LLC
Inventor： Ronald Wevers , Jacquelyn A. Degroot , Andy C. Chang
Abstract: A stretch-modified elastomeric multilayer film comprising a core layer comprising a first propylene/alpha-olefin copolymer, wherein the first propylene/alpha-olefin copolymer comprises at least 50 wt. % propylene, has a melt flow rate (230C/2.16 Kg) from 0.1 g/10 min to 35 g/10 min, and has a crystallinity in the range of from at least 1 percent by weight to 40 percent by weight, and at least one outer layer independently comprising a second propylene/alpha-olefin copolymer and from 2.5 to 30 wt. % of an antiblock agent, wherein the second propylene/alpha-olefin copolymer comprises at least 50 wt. % propylene, has a melt flow rate (230C/2.16 Kg) from 0.1 g/10 min to 35 g/10 min, and has a crystallinity in the range of from at least 1 percent by weight to 40 percent by weight, wherein the crystallinity of the first propylene/alpha-olefin copolymer is equal to or greater than the crystallinity of the second propylene/alpha-olefin copolymer.
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公开(公告)号：US20160017518A1
公开(公告)日：2016-01-21
申请号：US14771275
申请日：2014-02-27
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： Arnaldo T. Lorenzo , Selim Bensason , Jacquelyn A. Degroot
Abstract: The present disclosure is directed to a fiber that is composed of a polymeric blend including (i) 95 wt % to 99 wt % of a high density ethylene-based polymer having a Mw/Mn from 2.0 to 3.0 and (ii) from 5 wt % to 1 wt % of a low density ethylene-based polymer having a melt index from 5 g/10 min to 15 g/10 min. The fiber has a density from 1 denier to 2 denier and a 3% secant modulus from 8.5 g/denier to 20 g/denier.
Abstract translation: 本公开涉及由聚合物共混物组成的纤维，所述共混物包含（i）95重量％至99重量％的Mw / Mn为2.0至3.0的高密度乙烯基聚合物和（ii）5重量％ ％至1重量％的熔体指数为5g / 10min至15g / 10min的低密度乙烯类聚合物。 纤维的密度从1旦至2旦，3％割草模量为8.5g /旦至20g /旦。
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公开(公告)号：US20190002602A1
公开(公告)日：2019-01-03
申请号：US16066868
申请日：2017-01-25
Applicant: Dow Global Technologies LLC
Inventor： Rajen M. Patel , Jacquelyn A. Degroot , Fabricio Arteaga Larios , Selim Bensason , Teresa P. Karjala , Mehmet Demirors , Chuan Yar Lai
Abstract: Disclosed herein is a cast film comprising a polyethylene composition comprising the reaction product of ethylene and optionally one or more alpha-olefin comonomers, wherein said polyethylene composition is characterized by the following properties: a melt index, I2, measured according to ASTM D1238 (2.16 kg, 190° C.), of from 1 to 20 g/10 min; a density (measured according to ASTM D792) of from 0.935 to 0.970 g/cm3; a melt flow ratio, I10/I2, wherein I10 is measured according to ASTM D1238 (10 kg, 190° C.) of from 5.5 to 7.0; a molecular weight distribution (Mw/Mn) of from 2.2 to 3.5; and a vinyl unsaturation of greater than 0.12 vinyls per one thousand carbon atoms present in the backbone of the composition.
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Patent Agency Ranking
公开(公告)号：US10145027B2
公开(公告)日：2018-12-04
申请号：US14771275
申请日：2014-02-27
Applicant: Dow Global Technologies LLC
Inventor： Arnaldo Lorenzo , Selim Bensason , Jacquelyn A. Degroot
Abstract: The present disclosure is directed to a fiber that is composed of a polymeric blend including (i) 95 wt % to 99 wt % of a high density ethylene-based polymer having a Mw/Mn from 2.0 to 3.0 and (ii) from 5 wt % to 1 wt % of a low density ethylene-based polymer having a melt index from 5 g/10 min to 15 g/10 min. The fiber has a density from 1 denier to 2 denier and a 3% secant modulus from 8.5 g/denier to 20 g/denier.
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公开(公告)号：US20180222162A1
公开(公告)日：2018-08-09
申请号：US15750357
申请日：2016-08-30
Inventor： Fabricio Arteaga Larios , Jacquelyn A. Degroot , Vivek Kalihari
CPC classification number: B32B27/08 , B32B5/022 , B32B27/12 , B32B27/32 , B32B2250/03 , B32B2250/04 , B32B2250/242 , B32B2250/40 , B32B2270/00 , B32B2307/54 , B32B2307/558 , B32B2307/581 , B32B2307/718 , B32B2323/043 , B32B2323/046 , B32B2323/10 , B32B2555/00 , B32B2555/02
Abstract: A multilayer film comprising a core layer and two skin layers, wherein the core layer is positioned between the two skin layers, wherein the core layer comprises a polyethylene composition comprising a high density polyethylene having a density of 0.930-0.965 g/cc and a melt index of 0.7-10.0 g/10 min, and wherein each skin layer independently comprises a polypropylene composition comprising greater than 50 wt. %, based on the total weight of the polypropylene composition, of a propylene-based polymer.
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公开(公告)号：US20230407065A1
公开(公告)日：2023-12-21
申请号：US18252570
申请日：2021-12-09
Applicant: Dow Global Technologies LLC
Inventor： Sanjib Biswas , Jacquelyn A. Degroot , Mehmet Demirors , Erica Spiekermann , John A. Naumovitz , Douglas S. Ginger , Dibyaranjan Mekap
CPC classification number: C08L23/06 , C08J5/18 , B65D65/40 , C08L2205/025 , C08L2205/03 , C08L2203/162 , C08J2323/06 , C08J2423/06
Abstract: Embodiments of a polyethylene composition are provided, which may include a first polyethylene fraction comprising at least one peak in a temperature range of from 40 C to 75 C in an elution profile via improved comonomer composition distribution (iCCD) analysis method, where a first polyethylene area fraction is an area in the elution profile from 40 C to 75 C, and where the first polyethylene fraction area comprises from 45% to 65% of the total area of the elution profile; and a second polyethylene fraction comprising at least one peak in a temperature range of from 85 C to 110 C in the elution profile, where a second polyethylene area fraction is an area in the elution profile from 85 C to 110 C, and where the second polyethylene fraction area comprises from 15% to 35% of the total area of the elution profile, wherein the polyethylene composition has a density of 0.905 g/cm3 to 0.918 g/cm3, a melt index (I2) of 0.7 g/10 minutes to 3.5 g/10 minutes, and wherein the composition has a melt index ratio (I10/I2) that meets the following equation: I10/I2
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公开(公告)号：US11312827B2
公开(公告)日：2022-04-26
申请号：US16648556
申请日：2018-10-08
Applicant: Dow Global Technologies LLC
Inventor： Wu Aik Yee , Yijian Lin , Rajen M. Patel , Fabricio Arteaga Larios , Jacquelyn A. Degroot , Mridula Kapur , Yutaka Maehara
Abstract: A uniaxially-oriented ethylene-based polymeric film having at least one layer comprising at least 65 wt. %, based on total amount of materials present in the at least one layer, of a linear low density polyethylene which exhibits each of the following properties: a CDBI of at least 60%; a melt index, I2, measured according to ASTM D 1238 (2.16 kg @190° C.), of 1.8 g/10 min to 10 g/10 min; a density of from 0.910 g/cc to 0.940 g/cc; and a Mw/Mn of less than 3.0.
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公开(公告)号：US11065848B2
公开(公告)日：2021-07-20
申请号：US15750357
申请日：2016-08-30
Inventor： Fabricio Arteaga Larios , Jacquelyn A. Degroot , Vivek Kalihari
Abstract: A multilayer film including a core layer and two skin layers, wherein the core layer is positioned between the two skin layers, wherein the core layer includes a polyethylene composition including a high density polyethylene having a density of 0.930-0.965 g/cc and a melt index of 0.7-10.0 g/10 min, and wherein each skin layer independently includes a polypropylene composition including greater than 50 wt. %, based on the total weight of the polypropylene composition, of a propylene-based polymer.
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