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81. 发明专利

NZ537100A Frangible heat-sealable films for cook-in applications and packages made thereof 未知
公开(公告)号：NZ537100A
公开(公告)日：2005-12-23
申请号：NZ53710004
申请日：2004-12-08
申请人： CURWOOD INC
发明人： KRAIMER AMY LYNN , POCKAT GREGORY ROBERT
IPC分类号： B32B27/08 , C08J5/18
摘要： A three-layer frangible co-extruded structure for use as a packaging film or as a component thereof suitable for storing and/or cooking food items contained therein. The film layers may be formed from any suitable packaging material, but preferably, the first film layer includes a material selected from the group consisting of ethylene/[alpha]-olefin copolymer, propylene/ethylene copolymer or blends thereof.

82. 发明专利

NZ531295A Heat-shrinkable packaging 未知
公开(公告)号：NZ531295A
公开(公告)日：2005-11-25
申请号：NZ53129504
申请日：2004-02-20
申请人： CURWOOD INC
发明人： BUSCHE DAVID A , POCKAT GREGORY ROBERT , SCHELL THOMAS ANDREW
IPC分类号： B65D30/02 , B29C61/08 , B29L7/00 , B29L9/00 , B31B50/64 , B32B27/32 , B65D33/00 , B65D65/40 , B65D75/00 , B65D30/08 , B65D77/10 , B65D77/12
摘要： An end-sealed packaging receptacle formed from a sheet of a heat-shrinkable film, said film having a first edge and an opposing second edge, said receptacle comprising a first seal bonding said first edge and said second edge thereby defining a tube member having a first tube wall, a second tube wall, opposing first and second lay-flat edges, a closed end and an open mouth, said first seal being positioned between said first and second lay-flat edges. A second seal is provided through said first and second tube walls, said second seal extending laterally across the width of both said first and second walls at a position approximate said end, whereby a product receiving chamber is defined by said first wall, said second wall, said second seal and said open mouth.

83. 发明专利

MXPA04012752A PELICULAS DE EMPAQUETADO TERMOCONTRAIBLES CON PROPIEDADES DE SELLADO MEJORADO Y ARTICULOS ELABORADOS DE LAS MISMAS. 未知
公开(公告)号：MXPA04012752A
公开(公告)日：2005-08-16
申请号：MXPA04012752
申请日：2004-12-15
申请人： CURWOOD INC
发明人： GREGORY ROBERT POCKAT
IPC分类号： B32B1/00 , B32B27/08 , B32B27/28 , B32B27/32 , B65D65/40 , B65D75/00
摘要： Una pelicula de empaquetado de capa multiple orientada biaxialmente termocontraible coextrudida que comprende una primera capa, una segunda capa polimerica, una tercera capa polimerica, y una curta capa polimerica donde la primera capa polimerica comprende un primer copolimero de etileno/alfa-olefina preferentemente, un copolimero de etileno/alfa olefina que tiene una alfa olefina que comprende 4-8 atomos de carbono pendientes, un punto de fusion menor al 105¦C, una distribucion de peso molecular Mw/Mn de desde 0.05-2.7, un indice de fusion de desde 6.5-34 g/10 minutos a 190¦C., y se encuentra presente en la primera capa es una cantidad de desde 50-100%, con base en el peso total de dicha primera capa. La segunda capa comprende un segundo copolimero de etileno/alfa-olefina que tiene un indice de fusion de desde 90.85-6.0 g/10 minutos. Preferentemente, A es el porcentaje en peso total acumulativo del primer copolimero de etileno/alfa-olefina en todos las capas de la pelicula y B es porcentaje en peso total acumulativo del segundo copolimero de etileno/alfa-olefina en todas las capas de la pelicula, de manera tal que las cantidades relativas A y B satisfacen la relacion 2A/B mayor o igual que 1. La invencion incluye un paquete que comprende la pelicula de empaquetado de capa multiple orientada biaxialmente termocontrabible coextrudida.

84. 发明专利

AU779090B2 Irradiated biaxially oriented film 未知
公开(公告)号：AU779090B2
公开(公告)日：2005-01-06
申请号：AU6548101
申请日：2001-08-27
申请人： CURWOOD INC
发明人： IDLAS SCOTT A
IPC分类号： B32B7/12 , B32B27/32 , C08L23/08 , C08L23/14 , B32B27/30 , B32B27/36
摘要： A multi-layer packaging film is provided having at least four layers arranged in sequence comprising: (1) a heat-sealing first layer comprising at least 50% by weight of a copolymer of propene, and at least one alpha -olefin selected from the group consisting of ethylene, butene-1, methylpentene-1, hexene-1, octene-1, decene-1 and mixtures thereof, said copolymer having a propene content of at least 60 wt. %, a Tm between about 100 DEG C and about 145 DEG C, a Mw/Mn of between 1 and 5, and n-hexane extractables of less than 4 wt. %; (2) second and fourth layers each comprising (a) at least 10 wt. % of a first copolymer of ethylene and at least one C4-C8 alpha -olefin, said copolymer having a density of from 0.900 to 0.915 g/cm and a melt index of less than 2 dg/min., (b) at least 10 wt. % of a second copolymer of ethylene with from 4 to 18 wt. % of a vinyl ester, alkyl acrylate, acrylic or methacrylic acid, and (c) from 0 to 60 wt. % of a third copolymer of ethylene and at least one C3 - C8 alpha -olefin having a density less than 0.900 g/cm and a melting point less of between 65-98 DEG C.; and (3) a third layer comprising at least 80% by weight of at least one copolymer of vinylidene chloride with from 2-20 wt. % (based on said copolymer) of vinyl chloride or methyl acrylate.

85. 发明专利

CA2458136A1 HEAT-SHRINKABLE PACKAGING 未知
公开(公告)号：CA2458136A1
公开(公告)日：2004-08-20
申请号：CA2458136
申请日：2004-02-19
申请人： CURWOOD INC
发明人： SCHELL THOMAS ANDREW , POCKAT GREGORY ROBERT , BUSCHE DAVID A
IPC分类号： B65D30/02 , B29C61/08 , B29L7/00 , B29L9/00 , B31B50/64 , B32B27/32 , B65D33/00 , B65D65/40 , B65D75/00 , B65D30/08 , B32B27/28 , B65B43/04 , B65B51/10 , B65D30/14
摘要： An individual end-sealed packaging receptacle, such as a bag, formed from a sheet of heat-shrinkable film having a first edge and an opposing second edge. The packaging receptac le includes a first seal bonding the first edge and second edge to define a tube member having a firs t bag wall, a second bag wall, first and second opposing lay-flat bag edges, an end and an open mouth . The packaging receptacle includes a second seal through the first and second bag walls, extending laterally across the width of both the first and second walls and thereby closing the end. Preferably, at least one of the first and second seals is a peelable seal. The first seal may be a lap seal, a fin seal, a butt-seal or a seal strip. A method of forming a individual, end-sealed, heat-shrinkab le packaging receptacle is also disclosed.

86. 发明专利

DE69728799D1 未知
公开(公告)号：DE69728799D1
公开(公告)日：2004-06-03
申请号：DE69728799
申请日：1997-01-17
申请人： CURWOOD INC
发明人： HERGERT BRUCE M , KEENAN MARK T , MESTETSKY THOMAS S
IPC分类号： B32B27/32 , B65D65/40

87. 发明专利

AU2004201967A1 Puncture Resistant Polymeric Films, Blends and Process 未知
公开(公告)号：AU2004201967A1
公开(公告)日：2004-06-03
申请号：AU2004201967
申请日：2004-05-10
申请人： CURWOOD INC
IPC分类号： B29C55/02 , B29C55/28 , B32B27/08 , B32B27/32 , B65D81/34 , C08J5/18 , C08L23/04 , C08L23/06 , C08L23/08 , C08L33/04

88. 发明专利

CA2439578A1 PACKAGING FILMS CONTAINING COEXTRUDED POLYESTER AND NYLON LAYERS 未知
公开(公告)号：CA2439578A1
公开(公告)日：2004-03-09
申请号：CA2439578
申请日：2003-09-05
申请人： CURWOOD INC
发明人： LISCHEFSKI ANDREW JOHN , SCHELL THOMAS ANDREW , POCKAT GREGORY ROBERT
IPC分类号： B65D65/40 , B32B27/08 , B32B27/34 , B32B27/36 , B29C47/06 , B32B7/12 , B32B31/30
摘要： Multilayer thermoformable structures for packaging film applications. T he multilayer structures having at least a first layer of polyester, a second layer of a first adhesive and a third layer of a nylon blend formed into a flexible non- oriented film by coextrusion.

89. 发明专利

CA2438280A1 FAILURE-RESISTANT RECEPTACLE AND METHOD OF MANUFACTURE 未知
公开(公告)号：CA2438280A1
公开(公告)日：2004-03-04
申请号：CA2438280
申请日：2003-08-26
申请人： CURWOOD INC
发明人： HOLZEM GIANNI , IDLAS SCOTT ALLAN
IPC分类号： B65D30/08 , B65D75/00 , B65D75/38 , B65B25/06 , B65B43/06 , B65B51/10 , B32B27/30
摘要： The present invention involves a failure resistant receptacle of a puncture- resistant rollstock or bag including an inner bag formed from a seamless tube of material e.g. a lay-flat tube member having a first tube wall and an opposed second tube wall and having a first tube edge, an opposed second tube edge, a first tube end and an opposed second tu be end where the first and second tube walls define a product receiving chamber and furth er having first and second outer film members affixed to opposing outer surfaces respectively of the first and second tube walls and extending continuously between the first and second tu be ends. Optionally, the first and/or second outer film members may be narrower, coextensive, or extend beyond one or both of the first and second tube edges of the lay-flat tube member. In a bag embodiment a lateral seal is provided through the first and second tube wall s and the first and second outer film members and extends laterally across the width of at least the lay-flat tube member. Methods of manufacturing such rollstock and bags are also disclosed.

90. 发明专利

CA2632652A1 TRAY WITH BUILT-IN UTENSIL 未知
公开(公告)号：CA2632652A1
公开(公告)日：2003-10-11
申请号：CA2632652
申请日：2003-04-09
申请人： CURWOOD INC
发明人： HAEDT EDWARD L
IPC分类号： B65B61/02 , B32B38/00 , B65B61/20 , B65D1/28 , B65D1/36 , B65D77/24 , B65D81/34 , B65D85/72
摘要： The present invention is directed to a pre-formed food packaging article, a nd method of manufacturing the same, useful in the packaging of individual food portions comprising a planar member having an upper surface and a lower surface, said planar member having a detachable utensil formed integrally in said planar member; and, said planar member having a sanitary membrane affixed to the lower surface covering and protecting the bottom of the utensil from contamination . The sanitary membrane of the present invention protects the lower surface of the integrally formed utensil, while a sealing film or lid protects the upper surface of th e utensil, thus providing a food packaging article with a convenient, sanitary utensil for the consumer.

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