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公开(公告)号：WO2021076357A1
公开(公告)日：2021-04-22
申请号：PCT/US2020/054398
申请日：2020-10-06
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： EFFLER JR., Lawrence J. , KARJALA, Teresa P. , ABOELELLA, Nermeen W. , MAZZOLA, Nicolas Cardoso , KALIHARI, Vivek
Abstract: Embodiments of the present invention relate to multilayer films and articles. In one aspect, a multilayer film comprises at least one outer layer comprising at least 50 wt% of a polyethylene composition comprising the reaction product of ethylene and optionally, one or more alpha-olefin comonomers, wherein the polyethylene composition is characterized by the following properties: a. a melt index, I2, of from 0.3 to 3.0 g/10 min; b. a density of from 0.950 to 0.965 g/cm3; c. a melt flow ratio, I10/I2, of from 6.3 to 7.5; and d. a molecular weight distribution (MWD) of from 2.2 to 3.5, wherein the multilayer film has a thickness of at least 2 mils, wherein the multilayer film comprises at least 50% by weight polyethylene, wherein the multilayer film exhibits a surface haze of 13.5% or less when measured according to ASTM 1003-07, and wherein the multilayer film exhibit a water vapor transmission rate of 0.7 g-mil/100in2/day or less when measured according to ASTM F1249-06 at a temperature of 38°C and a relative humidity of 100%.
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公开(公告)号：WO2022125246A1
公开(公告)日：2022-06-16
申请号：PCT/US2021/058620
申请日：2021-11-09
Inventor： WALKER, James A. , EFFLER JR., Lawrence J. , DEWASTHALE, Sudhanwa D. , MARINE, Amira A. , SEKHARAN, Manesh Nadupparambil , MARTIN, Jill M. , CHEN, Mai , GUO, Yinzhong , GANDY, Christopher I.
Abstract: An article having recyclability properties including a combination of: (a) a polyolefin polymer; and (b) a solvent-borne adhesive composition having a recyclability property, wherein the recyclability property of the solvent-borne adhesive composition is such that when the article with the solvent-borne adhesive composition is reprocessed, the article with the solvent-borne adhesive composition exhibits less than a 40 % decreased change in performance compared to a control article without the solvent-borne adhesive composition that is reprocessed the same way as the article with the solvent-borne adhesive composition; a recyclable laminate structure including at least: (a) at least a first polymer film layer; and (b) a layer of the above solvent-borne laminating adhesive composition; and a process for manufacturing the above recyclable laminate structure.
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公开(公告)号：WO2022125245A1
公开(公告)日：2022-06-16
申请号：PCT/US2021/058618
申请日：2021-11-09
Applicant: DOW GLOBAL TECHNOLOGIES LLC [US]/[US]
Inventor： SEKHARAN, Manesh Nadupparambil , GUO, Yinzhong , EFFLER JR., Lawrence J. , DEWASTHALE, Sudhanwa D. , GANDY, Christopher I.
IPC: C08J7/04 , B32B33/00 , C09D5/00 , C09D7/40 , C09D133/10 , C08F265/06 , C09D7/20 , C09D133/04 , C08J11/00 , C09D5/02 , C09D133/08 , C08J3/12
Abstract: A coated article having recyclability properties including a combination of: (a) at least one polyolefin polymer article; and (b) a coating layer of a waterborne acrylic-based matte coating composition having a recyclability property, wherein the recyclability property of the waterborne acrylic-based matte coating composition is such that when the article with the waterborne acrylic-based matte coating composition is reprocessed, the article with the waterborne acrylic-based matte coating composition exhibits at least less than a 30 % decreased change in performance compared to a control article without the waterborne acrylic-based matte coating composition; wherein both the control article and the article with the waterborne acrylic-based matte coating composition are both reprocessed the same way; a recyclable coated film structure including at least: (a) at least one first polymer film layer; and (b) at least one coating layer of the above recyclable waterborne acrylic-based matte coating composition; and a process for manufacturing the above recyclable coated film structure.
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