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86 条记录 (耗时 0.016 秒)

    Method and apparatus for forming a striped extrusion
    81.
    发明申请
    Method and apparatus for forming a striped extrusion 审中-公开
    用于形成条纹挤压的方法和装置

    公开(公告)号：US20050258565A1

    公开(公告)日：2005-11-24

    申请号：US10849339

    申请日：2004-05-19

    申请人： Prem Anand

    发明人： Prem Anand

    IPC分类号： B29C47/04 ,  B29C47/06 ,  B29C47/24 ,  B29C47/28

    CPC分类号： B29C48/33 ,  B29C48/09 ,  B29C48/19 ,  B29C48/20 ,  B29C48/21 ,  B29C48/30 ,  B29C48/335 ,  B29C48/34 ,  B29K2995/0021 ,  B29L2031/3462 ,  B29L2031/7732

    摘要： A polymer extrusion assembly for forming a striped extrusion. The assembly includes conventional components for conveying a primary and a secondary molten polymer of differing colors, arranged concentrically, toward a die sub-assembly, which may be rotatable. The die has an opening for conveying the primary polymer to form an extruded tube. The periphery of the die opening is modified to cause thinning or breaching of the secondary polymer skin layer as it passes through the die. The periphery may be provided with teeth which furrow the skin layer, exposing the primary polymer underneath, or the periphery may be comprise a plurality of facets meeting at sharp internal corners, wherein the skin layer is forced into the corners and is breached at the centers of the facets, again exposing the primary polymer underneath in longitudinal stripes. By causing the die sub-assembly to rotate during extrusion, a spirally striped extrusion is formed.

    摘要翻译： 用于形成条纹挤出的聚合物挤出组件。 该组件包括用于传送不同颜色的主要和次级熔融聚合物的常规部件，其同心地布置成可以是可旋转的模具子组件。 模具具有用于输送初级聚合物以形成挤出管的开口。 修改模具开口的周边，以使二次聚合物表层在其通过模头时变薄或破裂。 周边可以设置有齿，其覆盖皮肤层，暴露下面的主要聚合物，或者周边可以包括在尖锐的内部角落处会聚的多个小面，其中皮肤层被迫进入拐角并在中心被破坏 的面，再次暴露在下面的主要聚合物纵向条纹。 通过使模具子组件在挤出过程中旋转，形成螺旋状的条状挤压件。

    Longitudinal orientation of a tubular thermoplastic film
    84.
    发明申请
    Longitudinal orientation of a tubular thermoplastic film 失效
    管状热塑性薄膜的纵向取向

    公开(公告)号：US20040247730A1

    公开(公告)日：2004-12-09

    申请号：US10492163

    申请日：2004-04-09

    发明人： Ole-Bendt Rasmussen

    IPC分类号： B29C047/90

    CPC分类号： B29C55/28 ,  B29C48/0018 ,  B29C48/0019 ,  B29C48/08 ,  B29C48/09 ,  B29C48/10 ,  B29C48/21 ,  B29C48/30 ,  B29C48/32 ,  B29C48/325 ,  B29C48/335 ,  B29C48/337 ,  B29C48/34 ,  B29C48/705 ,  B29C48/902 ,  B29C48/9125 ,  B29C48/918 ,  B29C48/92 ,  B29C48/94 ,  B29C2948/92514 ,  B29C2948/92571 ,  B29C2948/92704 ,  B29C2948/92895 ,  B29C2948/92904 ,  B29C2948/92923 ,  B29C2948/92971 ,  B29L2009/00

    摘要： The improved method and apparatus for longitudinal orientation of a tubular thermoplastic film as it leaves an annular extrusion die aims at a better control of this orientation. On its travel between the exit orifice (21) and the draw-down means, the at least partly molten film passes an annular frictional device (101), and the frictional force set-up hereby is variable in controlled manner. This device is cooled from its interior (105) in controlled manner by means of a fluid cooling medium. The friction may e be controlled by airlubrication with air pressed through holes (123) in the frictional device or through microporous metal, (102) or alternatively by sucidng the film against the frictional device. In a preferred embodiment the extrusion out of the die is peripherical extrusion, and in another preferred embodiment the film contains a blend of at least two compatible or compatibilized polymers, and the main proportion of the orientation takes place while one is predominantly in a crystalline state and the other predominantly in a molten state.

    摘要翻译： 当管状热塑性膜离开环形挤出模头时，用于纵向取向的改进方法和装置旨在更好地控制该取向。 在其出口孔（21）和下拉装置之间的行进中，至少部分熔融的膜通过环形摩擦装置（101），并且此处的摩擦力设置可以以受控的方式变化。 该装置通过流体冷却介质从其内部（105）以受控的方式冷却。 摩擦可以通过空气润滑来控制，空气通过摩擦装置中的孔（123）或通过微孔金属（102）挤压，或者通过将膜靠在摩擦装置上。 在优选的实施方案中，挤出模具是外围挤出的，在另一个优选的实施方案中，该膜含有至少两种相容的或相容的聚合物的共混物，并且取向的主要比例发生在一个主要为结晶状态 另一个主要处于熔融状态。

    Low-temperature impact-resistant polyamide-based stretch-oriented mutilayer film
    85.
    发明申请
    Low-temperature impact-resistant polyamide-based stretch-oriented mutilayer film 有权
    低温耐冲击聚酰胺拉伸取向薄膜

    公开(公告)号：US20030157350A1

    公开(公告)日：2003-08-21

    申请号：US10311929

    申请日：2002-12-20

    发明人： Takahisa Ueyama ,  Tadayoshi Itoh ,  Takeo Higashi

    IPC分类号： B32B027/08

    CPC分类号： B29C71/02 ,  B29C35/049 ,  B29C48/0018 ,  B29C48/0019 ,  B29C48/09 ,  B29C48/10 ,  B29C48/21 ,  B29C48/30 ,  B29C48/335 ,  B29C55/023 ,  B29C55/28 ,  B29K2077/00 ,  B29K2995/0089 ,  B29L2007/008 ,  B29L2009/00 ,  B32B27/08 ,  B32B27/34 ,  B32B37/153 ,  Y10T428/24942 ,  Y10T428/31725 ,  Y10T428/31855

    摘要： A stretch-oriented multilayer film suited for use as a freeze packaging material, a deep drawing packaging material, a vertical pillow packaging material, etc., is provided as a stretch-oriented multilayer film, comprising at least three layers including a surface layer (a) comprising a thermoplastic resin, an intermediate layer (b) comprising a polyamide resin and a surface layer (c) comprising a sealable resin, said multilayer film exhibiting an impact energy of at least 1.5 Joule at a conversion thickness of 50 nullm at null10null C. The multilayer film is produced through an inflation process using water having a large capacity as a cooling and a heating medium and including a combination of a high degree of stretching and a high degree of relaxation heat treatment not exercised heretofore.

    摘要翻译： 提供适合用作冷冻包装材料的拉伸取向多层膜，深拉伸包装材料，垂直枕头包装材料等作为拉伸取向多层膜，其包括至少三层，包括表面层 a）包括热塑性树脂，包含聚酰胺树脂的中间层（b）和包含可密封树脂的表面层（c），所述多层膜在50mum的转化厚度下表现出至少1.5焦耳的冲击能， 10℃。通过使用具有大容量的水作为冷却和加热介质的包括高度拉伸和高度松弛热处理的组合的充气过程来生产多层膜。