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    Stretch Film Using a Multi-Manifold Die
    3.
    发明申请
    Stretch Film Using a Multi-Manifold Die 审中-公开
    使用多歧管模具的拉伸膜

    公开(公告)号：US20140327175A1

    公开(公告)日：2014-11-06

    申请号：US14267375

    申请日：2014-05-01

    申请人： Paragon Films, Inc.

    发明人： Shaun Eugene Pirtle

    IPC分类号： B29C47/30 ,  B29C47/00 ,  B29C47/06

    CPC分类号： B29C48/30 ,  B29C48/08 ,  B29C48/18 ,  B29C48/19 ,  B29C48/21 ,  B29C48/307 ,  B29C48/345 ,  B29C48/49 ,  B29C48/70 ,  B29C48/92 ,  B29C2948/92704

    摘要： A die for forming a stretch film includes at least: a primary passage for receiving a primary stream, the primary passage having a length extending from a die inlet opening to a die outlet opening; and a flow assembly for supplying a secondary stream to the primary passage at a secondary passage opening. A method for forming a stretch film includes: introducing a primary stream to a primary passage of a die at a die inlet opening, the primary passage having a length extending from the die inlet opening to a die outlet opening; supplying a secondary stream to the primary passage at a secondary passage opening; combining the primary stream and the secondary stream to create a combined stream; passing the combined stream through said die outlet opening; and passing the combined stream from the die outlet opening to a casting unit, thereby forming a film web.

    摘要翻译： 用于形成拉伸膜的模具至少包括：用于接收初级流的主通道，所述主通道具有从模具入口开口延伸到模具出口开口的长度; 以及用于在次级通道开口处将次流供应到主通道的流动组件。 一种形成拉伸膜的方法包括：将一次流引入模具入口开口的模具的主通道，该主通道具有从模具入口开口延伸到模具出口开口的长度; 在次级通道开口处将次流供应到主通道; 组合主流和次流以创建组合流; 使组合流通过所述模具出口; 并将组合的流从模具出口开口传递到铸造单元，从而形成薄膜网。

    Dies and Methods for Improving Physical Properties of Stretch Film
    4.
    发明申请
    Dies and Methods for Improving Physical Properties of Stretch Film 审中-公开
    改善拉伸膜物理性能的模具和方法

    公开(公告)号：US20140021644A1

    公开(公告)日：2014-01-23

    申请号：US13944475

    申请日：2013-07-17

    申请人： Paragon Films, Inc.

    发明人： Michael John Baab ,  Shaun Eugene Pirtle

    IPC分类号： B29D7/01

    CPC分类号： B29D7/01 ,  B29C48/0018 ,  B29C48/08 ,  B29C48/12 ,  B29C48/30 ,  B29C48/305

    摘要： Dies and methods of extruding stretch film are provided, wherein the die includes at least an upper die lip and a lower die lip; the upper and lower die lips at least partially define a die gap; and at least one of the die lips includes a channel. Another die disclosed includes at least a die gap; and at least one jet for directing a stream of air onto the polymer as it is extruded through the die gap. Stretch films and methods for extruding stretch films are provided, wherein selected areas of the polymer extruded through the die have a gauge that exceeds the film's base gauge. The film includes at least a layer of film having a base gauge and a plurality of strength bands running longitudinally along a length of the film; and have a gauge that is greater than the base gauge.

    摘要翻译： 提供了挤出拉伸膜的模具和方法，其中模具至少包括上模唇和下模唇; 上模唇和下模唇至少部分地限定模间隙; 并且所述模唇中的至少一个包括通道。 公开的另一模具至少包括模具间隙; 以及至少一个喷射器，用于当通过模头间隙挤出时将空气流引导到聚合物上。 提供拉伸膜和挤出拉伸膜的方法，其中通过模具挤出的聚合物的选定区域具有超过膜的基准计的量规。 膜包括至少一层具有基准计的薄膜和沿薄膜的长度纵向延伸的多个强度带; 并且具有大于基准计的量规。

    STRETCH FILM COMPRISING A SLIP SKIN LAYER
    5.
    发明申请
    STRETCH FILM COMPRISING A SLIP SKIN LAYER 有权

    公开(公告)号：US20220194064A1

    公开(公告)日：2022-06-23

    申请号：US17465290

    申请日：2021-09-02

    申请人： Paragon Films, Inc.

    发明人： Tom ROUDEBUSH ,  Shaun PIRTLE ,  Mike HILDRETH ,  George EICHBAUER

    IPC分类号： B32B27/08 ,  B32B27/32 ,  B32B27/40

    摘要： Methods and means for producing a stretch film comprising a slip skin layer are provided. In one example embodiment, a stretch film having a slip skin layer is provided having a variable and scalable coefficient of friction. A stretch film comprising a cling layer and a slip skin layer is also provided, in which the cling layer further with includes a polyethylene-based elastomer blended into a low density polyethylene, and the slip skin layer includes an ultra-high molecular weight polysiloxane polymer. Consequently, the slip skin layer has a very low coefficient of friction while the cling layer retains a relatively high co-efficient of friction.

    Pure Layered Stretch Film Produced Using Single Pass Extrusion Resins
    6.
    发明申请
    Pure Layered Stretch Film Produced Using Single Pass Extrusion Resins 有权

    公开(公告)号：US20210229324A1

    公开(公告)日：2021-07-29

    申请号：US17230678

    申请日：2021-04-14

    申请人： Paragon Films, Inc.

    发明人： Michael John BAAB

    IPC分类号： B29C39/20 ,  B29C39/26 ,  B29C39/24 ,  B29C39/38 ,  B29C69/00 ,  B29D7/00 ,  B29C55/06

    摘要： Methods for producing a stretch film are provided, including disposing one or more extruders in fluid communication with a stock of virgin resin; heating the virgin resin to a molten state; delivering the molten virgin resin to a die; and extruding the molten virgin resin through the die onto a casting roll, thereby creating a cast stretch film. Methods for delivering the molten virgin resin onto a casting roll of varying sizes and set temperatures; and of moving a resulting film onto a secondary chill roll of varying sizes and set temperatures, are also provided. Finally, methods for moving the film from either the casting roll or the secondary chill roll onto a slitting assembly, dividing the film using one more interior or exterior slits, and then capturing and gathering the trim waste but not reintroducing the trim waste back into the production process are also disclosed.

    Pure Layered Stretch Film Produced Using Single Pass Extrusion Resins
    8.
    发明申请
    Pure Layered Stretch Film Produced Using Single Pass Extrusion Resins 审中-公开
    使用单道挤出树脂生产的纯分层拉伸膜

    公开(公告)号：US20170028595A1

    公开(公告)日：2017-02-02

    申请号：US15224937

    申请日：2016-08-01

    申请人： Paragon Films, Inc.

    发明人： Michael John Baab

    IPC分类号： B29C39/20 ,  B29C69/00 ,  B29C39/38 ,  B29C39/26 ,  B29C39/24

    CPC分类号： B29C39/203 ,  B29C39/24 ,  B29C39/26 ,  B29C39/38 ,  B29C55/06 ,  B29C69/001 ,  B29C2791/003 ,  B29C2793/0036 ,  B29D7/00 ,  B29L2007/008

    摘要： Methods for producing a stretch film are provided, including disposing one or more extruders in fluid communication with a stock of virgin resin; heating the virgin resin to a molten state; delivering the molten virgin resin to a die; and extruding the molten virgin resin through the die onto a casting roll, thereby creating a cast stretch film. Methods for delivering the molten virgin resin onto a casting roll of varying sizes and set temperatures; and of moving a resulting film onto a secondary chill roll of varying sizes and set temperatures, are also provided. Finally, methods for moving the film from either the casting roll or the secondary chill roll onto a slitting assembly, dividing the film using one more interior or exterior slits, and then capturing and gathering the trim waste but not reintroducing the trim waste back into the production process are also disclosed.

    摘要翻译： 提供拉伸膜的制造方法，包括将一个或多个挤出机配置成与原始树脂的原料流体连通; 将原始树脂加热至熔融状态; 将熔融的原始树脂输送到模具; 并将熔融的原始树脂通过模头挤出到铸辊上，从而形成铸塑拉伸膜。 将熔融原始树脂输送到不同尺寸和设定温度的铸辊上的方法; 并且还提供将所得膜移动到变化尺寸和设定温度的次级冷却辊上。 最后，将膜从铸辊或次级冷却辊移动到分切组件上的方法，使用一个或多个内部或外部狭缝分割膜，然后捕获和收集修整废料，但不将修整废料重新引入到 还公开了生产过程。

    Systems and Methods for Packaging and Distributing Stretch Film Rolls
    9.
    发明申请
    Systems and Methods for Packaging and Distributing Stretch Film Rolls 审中-公开
    包装和分布拉伸膜卷的系统和方法

    公开(公告)号：US20150090626A1

    公开(公告)日：2015-04-02

    申请号：US14503712

    申请日：2014-10-01

    申请人： Paragon Films, Inc.

    发明人： Shaun Eugene Pirtle

    IPC分类号： B65B13/02 ,  B65B61/14 ,  B65D71/08 ,  B65B13/18

    CPC分类号： B65B13/02 ,  B65B13/022 ,  B65B13/182 ,  B65B61/14 ,  B65D71/08 ,  B65D75/56

    摘要： A method of bundling rolls of film together includes at least: placing at least two rolls of film, each of the rolls comprising an axis, an outer surface, and first and second ends, into tangential contact with each other, so that the axes of the rolls are parallel to each other; and securing said rolls together. A bundled package includes at least: at least two rolls of film in tangential contact with each other, each of said rolls having an axis, an outer surface, and first and second ends, wherein the axes of said rolls are parallel to each other; and a securing means for bundling the at least two rolls together.

    摘要翻译： 将薄膜卷捆在一起的方法至少包括：放置至少两层薄膜，每个辊包括轴，外表面以及第一和第二端，彼此切向接触， 辊彼此平行; 并将所述辊固定在一起。 捆扎包装至少包括至少两个相互切向接触的薄膜，每个所述辊具有轴线，外表面以及第一和第二端部，其中所述辊子的轴线彼此平行; 以及用于将至少两个辊捆绑在一起的固定装置。

    Apparatus, Methods, and Compositions for Producing Oriented Stretch Film In-Process
    10.
    发明申请
    Apparatus, Methods, and Compositions for Producing Oriented Stretch Film In-Process 审中-公开
    用于生产定向拉伸膜的装置，方法和组合物

    公开(公告)号：US20140144589A1

    公开(公告)日：2014-05-29

    申请号：US14167580

    申请日：2014-01-29

    申请人： Paragon Films, Inc.

    发明人： Shaun Eugene Pirtle ,  Khurrum Shamsi

    IPC分类号： B29C53/00

    CPC分类号： B29C53/005 ,  B31F1/0016 ,  B31F7/006 ,  B65H18/10 ,  B65H2301/414322 ,  B65H2301/4148 ,  B65H2701/11234 ,  B65H2701/1752 ,  Y10T156/1015

    摘要： Apparatus and methods for producing folded edges in a film in-process, and compositions of such film are provided. A method of folding edges includes: separating a first idler roll and a second idler roll by a first distance; positioning a plurality of folding guides between the first idler roll and the second idler roll; separating adjacent sections of film having a majority layer comprising a Ziegler Natta catalyzed linear low density polyethylene copolymer resin having molecules that inherently lack long chain branching, wherein a majority of said molecules are oriented in a substantially longitudinal direction due to an induced strain, and inducing two folds with each folding guide, thereby causing an edge of each section of film to turn under 180° and cling to a bottom surface of the section of film; and moving the adjacent sections of film from the folding guides to the second idler roll.

    摘要翻译： 提供了在工艺中的膜中生产折叠边缘的装置和方法，以及这种膜的组合物。 折叠边缘的方法包括：将第一惰轮和第二惰轮分开第一距离; 将多个折叠导轨定位在第一惰轮和第二惰轮之间; 分离具有包含齐格勒 - 纳塔催化的线性低密度聚乙烯共聚物树脂的多数层的相邻部分，其具有固有地缺乏长链支化的分子，其中大部分所述分子由于诱导的应变而在基本纵向方向上取向，并诱导 每个折叠导轨两个折叠，从而导致每个薄膜部分的边缘在180°下转动并粘附到薄膜部分的底部表面; 并将膜的相邻部分从折叠导向件移动到第二惰轮。