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公开(公告)号：WO2010009202A3
公开(公告)日：2010-04-15
申请号：PCT/US2009050643
申请日：2009-07-15
Applicant: DOW GLOBAL TECHNOLOGIES INC , CHANG ANDY , TRAHAN MONICA , PATEL RAJEN
Inventor： CHANG ANDY , TRAHAN MONICA , PATEL RAJEN
CPC classification number: C08L53/02 , B32B5/022 , B32B5/024 , B32B5/26 , B32B7/02 , B32B7/12 , B32B27/08 , B32B27/12 , B32B27/30 , B32B27/32 , B32B2270/00 , B32B2274/00 , B32B2307/51 , B32B2307/704 , B32B2307/736 , B32B2555/00 , C08J5/18 , C08J2323/02 , C08L23/04 , C08L23/08 , C08L23/10 , C08L53/00 , C08L53/025 , Y10T428/2967 , Y10T428/31913 , C08L2666/24 , C08L2666/06 , C08L2666/02
Abstract: The present invention describes an elastic article comprising at least one low crystallinity polymer layer and optionally a high crystallinity polymer layer. The low crystallinity polymer layer comprises a low crystallinity polymer and optionally an additional polymer. The optional high crystallinity polymer layer comprises a high crystallinity polymer having a melting point within about 50 °C of the melting point of the low crystallinity polymer. The article is elongated at a temperature below the melting point of the low crystallinity polymer and the optional high crystallinity polymer in at least one direction to an elongation of at least about 50% of its original length or width. Subsequently, the article may be heat-shrunk at a temperature not greater than 10 °C above the melting point of the low crystallinity polymer.
Abstract translation: 本发明描述了一种包含至少一种低结晶度聚合物层和任选的高结晶度聚合物层的弹性制品。 低结晶度聚合物层包含低结晶度聚合物和任选的另外的聚合物。 任选的高结晶度聚合物层包含熔点低于低结晶度聚合物熔点约50℃的高结晶度聚合物。 该物品在低于低结晶度聚合物和任选的高结晶度聚合物的熔点的温度下在至少一个方向上伸长到其原始长度或宽度的至少约50％的伸长率。 随后，可以在低于低结晶度聚合物的熔点的10℃以上的温度下对该制品进行热收缩。
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公开(公告)号：WO2004024433A3
公开(公告)日：2004-09-16
申请号：PCT/US0325395
申请日：2003-08-14
Applicant: DOW GLOBAL TECHNOLOGIES INC , SAAVEDRA JOSE V , PATEL RAJEN , RATTA VARUN
Inventor： SAAVEDRA JOSE V , PATEL RAJEN , RATTA VARUN
CPC classification number: B32B7/02 , B29C47/0026 , B29C47/06 , B29K2009/06 , B29K2023/0625 , B29K2023/0633 , B29K2023/065 , B29K2023/083 , B29K2023/12 , B29K2025/00 , B29K2105/256 , B29L2009/00 , B32B27/32 , Y10S428/91 , Y10T428/31909 , Y10T428/31913 , Y10T428/31917
Abstract: A mufti-layer heat film having at least three layers is disclosed wherein the film has high optical properties, high stiffness and desirable shrinkage in the cross direction. The inner layer, or layers, comprises at least one stiffening polymer selected from the group consisting of: low density polyethylene, linear low density polyethylene, high density polyethylene, blends thereof, polypropylene random copolymer, styrene/butadiene copolymer, polystyrene, ethylene-vinyl acetate copolymer and cyclic-olefin copolymer, provided that when more than one inner layer is present, the inner layers can be the same or different. The skin layers, which may be the same or different, comprise at least one of: low density polyethylene; a blend of low density polyethylene and linear low density polyethylene; a blend of low density polyethylene and very low density polyethylene; polystyrene; ethylene-vinyl acetate copolymer; a blend of ethylene-vinyl acetate copolymer and linear low density polyethylene; cyclic-olefin copolymer; styrene-butadiene copolymer; or, polypropylene random copolymer, provided that the skin layers are devoid of a homogeneously branched polyethylene resin prepared with a single site catalyst. The inventive films have haze values of less than about 15%, a 2% secant modulus greater than about 50,000 psi and a cross directional shrinkage greater than 0%. The inventive films are made by a process that does not include post-extrusion bi-axial orientation.
Abstract translation: 公开了具有至少三层的多层热膜，其中该膜具有高的光学性能，高的刚性和在横向上的期望的收缩率。 内层或多层包含至少一种选自下列的硬化聚合物：低密度聚乙烯，线性低密度聚乙烯，高密度聚乙烯，其共混物，聚丙烯无规共聚物，苯乙烯/丁二烯共聚物，聚苯乙烯，乙烯 - 乙烯基 乙酸乙烯酯共聚物和环烯烃共聚物，条件是当存在多于一个内层时，内层可以相同或不同。 表层可以是相同的或不同的，包括以下中的至少一种：低密度聚乙烯; 低密度聚乙烯和线性低密度聚乙烯的混合物; 低密度聚乙烯和极低密度聚乙烯的混合物; 聚苯乙烯; 乙烯 - 乙酸乙烯酯共聚物; 乙烯 - 乙酸乙烯酯共聚物和线性低密度聚乙烯的共混物; 环烯烃共聚物; 苯乙烯 - 丁二烯共聚物; 或聚丙烯无规共聚物，条件是表层不含用单中心催化剂制备的均匀支化聚乙烯树脂。 本发明的薄膜具有小于约15％的雾度值，大于约50,000psi的2％正割模量和大于0％的横向收缩率。 本发明的膜通过不包括挤出后双轴取向的方法制成。
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公开(公告)号：AT499465T
公开(公告)日：2011-03-15
申请号：AT05735945
申请日：2005-04-08
Applicant: DOW GLOBAL TECHNOLOGIES INC
Inventor： ETHIOPIA SAMUEL , PATEL RAJEN , CLAASEN GERT , STEWART KENNETH , ALLGEUER THOMAS , PEPPER RANDY , KNICKERBOCKER EDWARD , PRESSLY THOMAS
Abstract: The present invention relates to nonwoven webs or fabrics. In particular, the present invention relates to nonwoven webs having superior abrasion resistance and excellent softness characteristics. The nonwoven materials comprise fibers made from of a polymer blend of isotactic polypropylene, reactor grade propylene based elastomers or plastomers, and optionally, a homoge-neously branched ethylene/alpha olefin plastomer or elastomer. The isotactic polypropylene can be homopolymer polypropylene, and random copolymers of propylene and one or more alpha-olefins. The reactor grade propylene based elastomers or plastomers plastomer have a molecular weight distribution of less than about 3.5, and a heat of fusion less than about 90 joules/gm. In particular, the reactor grade propylene based elastomers or plastomers contains from about 3 to about 15 percent by weight of units derived from an ethylene, and a melt flow rate of from about 2 to about 200 grams/10 minutes. The present invention also relates to cold drawn textured fibers comprising of a polymer blend of isotactic polypropylene and reactor grade propylene based elastomers or plastomers.
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公开(公告)号：BR0314444B1
公开(公告)日：2014-12-30
申请号：BR0314444
申请日：2003-08-14
Applicant: DOW GLOBAL TECHNOLOGIES INC
Inventor： SAAVEDRA JOSE V , PATEL RAJEN , RATTA VARUN
Abstract: A multi-layer heat film having at least three layers is disclosed wherein the film has high optical properties, high stiffness and desirable shrinkage in the cross direction. The inner layer, or layers, comprises at least one stiffening polymer selected from the group consisting of: low density polyethylene, linear low density polyethylene, high density polyethylene, blends thereof, polypropylene random copolymer, styrene/butadiene copolymer, polystyrene/butadiene copolymer, polystyrene, ethylene-vinyl acetate copolymer and cyclic-olefin copolymer, provided that when more than one inner layer is present, the inner layers can be the same or different. The skin layers, which may be the same or different, comprise at least one of: low density polyethylene; a blend of low density polyethylene and linear low density polyethylene; a blend of low density polyethylene and very low density polyethylene; polystyrene; ethylene-vinyl acetate copolymer; a blend of ethylene-vinyl acetate copolymer and linear low density polyethylene; cyclic-olefin copolymer; styrene-butadiene copolymer; or, polypropylene random copolymer, provided that the skin layers are devoid of a homogeneously branched polyethylene resin prepared with a single site catalyst. The inventive films have haze values of less than about 15%, a 2% secant modulus renter than about 50,000 psi and a cross directional shrinkage greater than 0%. The inventive films are made by a process that does not include post-extrusion bi-axial orientation.
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公开(公告)号：AT477113T
公开(公告)日：2010-08-15
申请号：AT06827376
申请日：2006-11-02
Applicant: DOW GLOBAL TECHNOLOGIES INC
Inventor： PATEL RAJEN , NIEMANN DEBRA , CHUM PAK-WING , AMON MORIS , CHU CHIA-HSI , ROZENBAOUM EVGUENI
Abstract: The present invention relates to a multi-layer oriented shrink film comprising at least one skin layer comprising a polystyrene material and at least one core layer comprising a polyolefin layer. The films are preferably primarily oriented in either the machine or the cross direction. These films are ideally suited for use as a shrink label which can be applied either as a CD shrink sleeve or applied using a continuous roll process. The films ideally have an overall density of less than 1.0 g/cm3, to facilitate recycling efforts.
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Patent Agency Ranking6.发明专利
公开(公告)号：ES2476418T3
公开(公告)日：2014-07-14
申请号：ES06785017
申请日：2006-06-16
Applicant: DOW GLOBAL TECHNOLOGIES INC
Inventor： ZHOU WEIJUN , LAFOLLETTE WILLIAM , PATEL RAJEN , HAHN STEPHEN , GABELNICK AARON , LAMBERT CHRISTINA
IPC: B32B27/08 , C08L51/00 , C08L51/04 , C09D151/00 , C09D151/04
Abstract: Un sobre de ventanas que tiene una o más aberturas de ventanas, estando al menos una abertura de ventana cerrada o sellada por un parche para ventanas no opaco, polimérico o de plástico, comprendiendo el parche para ventanas una película polimérica orientada biaxialmente, legible por escáner óptico, teniendo la película un brillo a 45º que es inferior o igual a 50 y comprendiendo una composición de polímeros orgánicos seleccionada de una resina de polímero vinilaromático modificado con caucho y una mezcla de una resina de polímero vinilaromático con una resina de polímero vinilaromático modificado con caucho, teniendo la resina vinilaromática modificada con caucho un tamaño medio de partícula sin restricciones dentro de un intervalo de 0,1 micrómetro a 10 micrómetros, en donde el polímero vinilaromático modificado con caucho está presente en una cantidad suficiente para proporcionar la película con un contenido de caucho igual o superior a 2 por ciento en peso basado en el peso de la película y hasta 9 por ciento en peso basado en el peso de la película.
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公开(公告)号：ES2377410T3
公开(公告)日：2012-03-27
申请号：ES05735287
申请日：2005-04-08
Applicant: DOW GLOBAL TECHNOLOGIES INC , DOW GLOBAL TECHNOLOGIES LLC
Inventor： PATEL RAJEN , CLAASEN GERT , LIANG WENBIN , KATZER KARIN , STEWART KENNETH , ALLGEUER THOMAS , NIETO JESUS
IPC: D04H1/54
Abstract: Un material no tejido, que tiene un gramaje (BW) de 10 g/m2 hasta 100 g/m2, compuesto por fibras que tienen una superficie que comprende un polietileno, en donde dichas fibras se seleccionan del grupo consistente en fibras monocomponentes, fibras bicomponentes o sus mezclas, en donde dicho material no tejido tiene un area de unión suficientemente alta para dar como resultado un desprendimiento/abrasión menor o igual que 0, 0214 (BW) + 0, 2714 mg/cm2 cuando el material comprende fibras monocomponentes, y en donde dicho material muestra un desprendimiento/abrasión menor o igual que 0, 0071 (BW) + 0, 4071 mg/cm2 cuando el material esta compuesto por fibras bicomponentes, en donde las fibras tienen de 0, 1 a 50 denieres y comprenden una mezcla polimera, en donde la mezcla polimera comprende: a. desde 26% en peso hasta 80% en peso (en peso de la mezcla polimera) de un primer polimero, que es un interpolimero homogeneo de etileno/αolefina que tiene: i. un indice de fluidez de aproximadamente 1 a aproximadamente 1000 gramos/10 minutos, y ii. una densidad de 0, 870 hasta 0, 950 gramos/centimetro3, y b. desde 74% en peso hasta 20% en peso de un segundo polimero que es un homopolimero de etileno o un interpolimero de etileno/αolefina que tiene: i. un indice de fluidez de aproximadamente 1 a 1000 gramos/10 minutos, y ii. una densidad que es al menos 0, 01 gramos/centimetro3 mayor que la densidad del primer polimero, en donde el indice de fluidez global de la mezcla polimera es mayor que 18 gramos/10 min.
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公开(公告)号：AT440122T
公开(公告)日：2009-09-15
申请号：AT05855688
申请日：2005-12-23
Applicant: DOW GLOBAL TECHNOLOGIES INC
Inventor： BUTLER THOMAS , CHANG ANDY , VAN DUN JOZEF , WEEKS RONALD , WEINHOLD JEFFREY , PATEL RAJEN , GILLESPIE DAVID
IPC: C08L23/00
Abstract: This invention relates to polyolefin compositions. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines due to improved resistance to draw resonance. The compositions of the present invention comprise an elastomeric polyolefin resin and a high pressure low density type resin. The preferred compositions of the present invention comprise from 88 to 99 percent elastomer or plastomer and from 1 to 12 percent by weight of a high pressure low density type resin.
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公开(公告)号：AU2003268092A1
公开(公告)日：2004-04-30
申请号：AU2003268092
申请日：2003-08-14
Applicant: DOW GLOBAL TECHNOLOGIES INC
Inventor： SAAVEDRA JOSE V , PATEL RAJEN , RATTA VARUN
Abstract: A multi-layer heat film having at least three layers is disclosed wherein the film has high optical properties, high stiffness and desirable shrinkage in the cross direction. The inner layer, or layers, comprises at least one stiffening polymer selected from the group consisting of: low density polyethylene, linear low density polyethylene, high density polyethylene, blends thereof, polypropylene random copolymer, styrene/butadiene copolymer, polystyrene/butadiene copolymer, polystyrene, ethylene-vinyl acetate copolymer and cyclic-olefin copolymer, provided that when more than one inner layer is present, the inner layers can be the same or different. The skin layers, which may be the same or different, comprise at least one of: low density polyethylene; a blend of low density polyethylene and linear low density polyethylene; a blend of low density polyethylene and very low density polyethylene; polystyrene; ethylene-vinyl acetate copolymer; a blend of ethylene-vinyl acetate copolymer and linear low density polyethylene; cyclic-olefin copolymer; styrene-butadiene copolymer; or, polypropylene random copolymer, provided that the skin layers are devoid of a homogeneously branched polyethylene resin prepared with a single site catalyst. The inventive films have haze values of less than about 15%, a 2% secant modulus renter than about 50,000 psi and a cross directional shrinkage greater than 0%. The inventive films are made by a process that does not include post-extrusion bi-axial orientation.
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公开(公告)号：AT469440T
公开(公告)日：2010-06-15
申请号：AT07814921
申请日：2007-09-19
Applicant: DOW GLOBAL TECHNOLOGIES INC
Inventor： PATEL RAJEN , WU SHAOFU , BERNIUS MARK , ESSEGHIR MOHAMED , MCGEE ROBERT , MAZOR MICHAEL , NAUMOVITZ JOHN
IPC: H01L31/048 , H01L23/31
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