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公开(公告)号：US11273592B2
公开(公告)日：2022-03-15
申请号：US16435935
申请日：2019-06-10
Applicant: Dow Global Technologies LLC
Inventor： Xiao Bing Yun , Rongjuan Cong , Jianping Pan , Teresa P. Karjala
IPC: B32B27/32 , B29C55/00 , B29C48/00 , C08L23/08 , B29C55/14 , B32B15/08 , B32B15/20 , B32B27/08 , B32B27/10 , B32B27/16 , B32B27/34 , B32B27/36 , C08J5/18 , B32B7/02 , C08L23/10 , B29K23/00
Abstract: The present invention discloses a process for forming a biaxially oriented film. The process includes first selecting a polyolefin resin wherein said polyolefin resin comprises a linear low density polyethylene resin characterized by having from 9 to 35 weight percent of the total weight of linear low density polyethylene resin eluting from a CEF at a temperature greater than 97.0° C.; and further characterized by having a CDR of from 33 to 80 and a Mw Ratio of from 0.15 to 0.45. Next a film is formed from the polyolefin resin selected in the first step. Finally the film formed in the second step is oriented in a sequential manner. The films produced by this process are characterized by having an ultimate elongation at least 1.5 times greater in the MD as compared to the CD and the 2% secant modulus is a least 1.25 times greater in the CD as compared to the MD. The films are further characterized by having free residual shrinkage of less than 10% in the MD and less than 10% in the CD when exposed to a temperature of 90° C. for 10 minutes.
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公开(公告)号：US11090852B2
公开(公告)日：2021-08-17
申请号：US16620008
申请日：2017-06-09
Applicant: Dow Global Technologies LLC
Inventor： Fengyi Su , Andong Liu , Hongyu Chen , Jianping Pan , Xiao Bing Yun , Thomas Allgeuer , Erqiang Chen , Tipeng Zhao , Guihong Liao
Abstract: The coextruded multilayer film has at least two layers, including a sealant layer and a second layer in contact with the sealant layer. The sealant layer contains (A) a first ethylene-based polymer having a density from 0.865 g/cc to 0.930 g/cc and a melt index from 0.5 g/10 min to 25 g/10 min; (B) an unsaturated primary fatty acid amide having a melting point of 100° C. or less; and (C) a saturated primary fatty acid amide having a melting point greater than 100° C. The unsaturated primary fatty acid amide and the saturated primary fatty acid amide have a weight ratio of from 3:1 to 1:6. The second layer contains a second ethylene-based polymer. The present disclosure also provides a laminate containing said sealant layer.
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公开(公告)号：US20210213721A1
公开(公告)日：2021-07-15
申请号：US17252955
申请日：2019-05-17
Applicant: Dow Global Technologies LLC
Inventor： Gang Wang , Xiaobing Yun , Jianping Pan , Jingyi Xu
Abstract: A biaxially-oriented polyethylene (BOPE) multilayer film comprises a skin layer with a matte surface and a core, the skin layer with a matte surface comprising, in weight percent (wt %) based upon the weight of the skin layer: (1) from 20 to 80 wt % of an ethylene-based polymer, and (2) from 80 to 20 wt % of a propylene-based polymer; each of the ethylene-based polymer and the propylene-based polymer having a storage modulus, with a difference between the storage modulus of the ethylene-based polymer and the propylene-based polymer of greater than 40 megaPascals (MPa) at 110° C., and greater than 18 MPa at 120° C.
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公开(公告)号：US20210108054A1
公开(公告)日：2021-04-15
申请号：US16970475
申请日：2018-03-15
Applicant: Dow Global Technologies LLC , Dow Silicones Corporation
Inventor： Andong Liu , Fengyi Su , Hongyu Chen , Jianping Pan , Xiaobing Yun , Thomas Allgeuer , Di Xu , Yuguo Ma
IPC: C08L23/06
Abstract: Provided is a polymer blend that can be used in films, packages, and fibers. In one aspect, a polymer blend comprises an ethylene-based polymer, and one or more compounds of formula (I), wherein n is 6 to 24.
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5.发明申请公开(公告)号：US20200087497A1
公开(公告)日：2020-03-19
申请号：US16470695
申请日：2017-01-11
Applicant: Dow Global Technologies LLC
Inventor： Andong Liu , Guihong Liao , Jianping Pan , Peng Gao , Hongyu Chen , Yi Zhang
IPC: C08L23/08 , C08J5/18 , C08J5/12 , B32B5/02 , B32B15/20 , B32B15/082 , B32B27/08 , B32B27/12 , B32B27/30 , B32B27/34 , B32B27/32 , B32B37/15
Abstract: The present invention provides polymer blends that can be used in a multilayer structure and to multilayer structures comprising one or more layers formed from such blends. In one aspect, a polymer blend comprises (a) a copolymer comprising ethylene and at least one of acrylic acid and methacrylic acid having an acid content of 2 to 21 weight percent based on the weight of the copolymer, wherein the amount of copolymer (a) comprises 20-80 weight percent of the blend based on the total weight of the blend, and (b) a copolymer comprising ethylene and at least one of methyl acrylate and ethyl acrylate having an acrylate content of 5 to 30 weight percent based on the weight of the copolymer, wherein the amount of copolymer (b) comprises 10 to 50 weight percent of the blend based on the total weight of the blend, wherein the amount of copolymer (a) and copolymer (b) is at least 70 weight percent of the blend based on the total weight of the blend.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20200079883A1
公开(公告)日：2020-03-12
申请号：US16465927
申请日：2017-11-11
Applicant: Dow Global Technologies LLC
Inventor： Brian Walther , Santosh S. Bawiskar , Jianping Pan
IPC: C08F2/04 , C08F2/01 , C08F210/16 , C08J3/00
Abstract: A process to form a polymer composition comprising an ethylene-based polymer and a functionalized ethylene-based polymer, said process comprising the steps described herein, which include passing a polymer melt through at least one static mixer, and wherein the functionalized ethylene-based polymer, in melt form, is introduced into the polymer melt, before the polymer melt enters the static mixer.
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公开(公告)号：US20170029583A1
公开(公告)日：2017-02-02
申请号：US15302967
申请日：2014-04-09
Applicant: Dow Global Technologies LLC
Inventor： Yijian Lin , Mehmet Demirors , Jianping Pan , Xiao B. Yun
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 12 from 0.5 to 10 g/10 min and a density from 0.910 to 0.940 g/cc is provided.
Abstract translation: 一种包含第一聚乙烯组合物的第一取向膜，其包含：20至50重量％的密度大于0.925g / cc且I2低于2g / 10min的第一线性低密度聚乙烯聚合物; 和80至50重量％的密度低于或等于0.925g / cc且I2大于或等于2g / 10min的第二线性低密度聚乙烯聚合物; 其中所述第一聚乙烯组合物具有0.5至10g / 10min的12和0.910至0.940g / cc的密度。
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公开(公告)号：US12215214B2
公开(公告)日：2025-02-04
申请号：US17631150
申请日：2020-07-27
Applicant: Dow Global Technologies LLC
Inventor： Yifan Y. Dong , Jong Young Lee , Barry A. Morris , Teresa P. Karjala , Jianping Pan , Guihong Liao , I-Hwa Lee , Carmelo Declet Perez , Michael B. Biscoglio
IPC: C08L23/08 , C09D123/06
Abstract: The polymer blend includes at least 90% by weight low density polyethylene (LDPE) polymer and from 1% to 10% by weight acid copolymer based on the total weight of the polymer blend. In the polymer blend, the LDPE polymer has a melt index (I? 2 #191) from 2 g/10 min to 8 g/10 min as determined in accordance with ASTM D1238, and a molecular weight distribution from 5 to 10.5. In the polymer blend, the acid copolymer is a polymerized reaction product of: at least 60% by weight ethylene, based on the total weight of the monomers present in the ethylene acid copolymer; from 1% to 20% by weight monocarboxylic acid monomer, based on the total weight of the monomers present in the ethylene acid copolymer; and from 0 to 20% by weight alkyl acrylate monomer, based on the total weight of the monomers present in the ethylene acid copolymer.
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公开(公告)号：US20240424773A1
公开(公告)日：2024-12-26
申请号：US18698448
申请日：2021-11-08
Applicant: Dow Global Technologies LLC , Rohm and Haas Company
Inventor： ChenYan Bai , Gang Wang , Zhe Du , Fanji Wang , Xiaobing Yun , Jianping Pan , Jingyi Xu , Kaili Wang , Lianjiang Zhao , Gaobing Chen
Abstract: A laminate, an article comprising the laminate and a method for preparing the laminate are provided. The present disclosure relates to a laminate, comprising a first substrate comprising a metalized polyethylene-based (PE based) film; a second substrate comprising a polyethylene terephthalate-based film or a polypropylene-based film; and, an adhesive layer adhering the first substrate to the second substrate, wherein the adhesive layer is derived from a two-component solvent-based polyurethane adhesive composition; wherein the concentration of fatty acids or fatty acid derivatives in the metalized PE-based film is less than 300 ppm, based on the total weight of the metalized PE-based film, wherein the two-component solvent-based polyurethane adhesive composition comprises a polyester polyol component and a polyisocyanate component, wherein the polyester polyol component has about 40 wt %-60 wt % of aromatic rings in the backbone, based on the total weight of the polyester polyol and a molecular weight (Mw) between 5,000 and 50,000; and wherein the weight ratio of the polyester polyol component to the polyisocyanate component is from 100:5 to 100:30.
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公开(公告)号：US20240218139A1
公开(公告)日：2024-07-04
申请号：US18288943
申请日：2021-06-07
Applicant: Dow Global Technologies LLC , Rohm and Haas Company
Inventor： Gaobing Chen , Chenyan Bai , Jianping Pan , Jie Wu , Juan Carlos Casarrubias
IPC: C08J7/04 , C09D175/04
CPC classification number: C08J7/0427 , C09D175/04 , C08J2323/06 , C08J2323/12 , C08J2323/20 , C08J2475/04
Abstract: Provided herein is a laminate, comprising a polyolefin-based substrate film having a first inner surface and a first outer surface, and a polyurethane-based top coating having a second inner surface and a second outer surface, wherein the first inner surface is in contact with the second inner surface, wherein the polyurethane-based top coating is formed by mixing an isocyanate-terminated component and a hydroxyl-terminated component and coating the mixture onto the first inner surface of the polyolefin-based substrate film. Also provided are methods of preparing the laminate, articles comprising the laminate and use of the laminate in the packaging of a product.
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