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90 条记录 (耗时 0.018 秒)

    High barrier shrink film
    31.
    发明授权
    High barrier shrink film 失效
    高屏障收缩膜

    公开(公告)号：US4542075A

    公开(公告)日：1985-09-17

    申请号：US538738

    申请日：1983-10-03

    申请人： Henry G. Schirmer

    发明人： Henry G. Schirmer

    IPC分类号： B32B27/08 ,  B32B27/32 ,  B32B27/30

    CPC分类号： B32B27/08 ,  B32B27/322 ,  Y10S428/913 ,  Y10T428/31913 ,  Y10T428/3192

    摘要： There is provided a heat shrinkable, high barrier laminate film which includes a hot blown, melt oriented high oxygen barrier film, of relatively high crystallinity and correspondingly relatively low ultimate elongation, laminated to a stretch oriented base film having a shrink tension substantially greater than that of said barrier film, the extent of orientation of said base film being sufficient such that its ultimate elongation is reduced so as to be commensurate with that of said barrier film. In one preferred mode, the barrier film is a layflat tubular film having its interior layflat surfaces laminated together. Representatively, the high barrier layer of the barrier film is vinylidene chloride copolymer having at least about 85% by weight vinylidene chloride content, preferably at least about 90%. Associated methods for making the laminate films are also provided.

    摘要翻译： 提供了一种热收缩的高阻隔层压膜，其包括具有相对高的结晶度和相应地相对较低的极限伸长率的热吹，熔体取向的高氧阻隔膜，层压到具有基本上大于其的收缩张力的拉伸取向基膜 的所述阻挡膜的所述基膜的取向程度足以使得其极限伸长率减小，以与所述阻挡膜的取向相当。 在一个优选的模式中，阻挡膜是其内部平铺表面层叠在一起的布置管状膜。 代表性地，阻挡膜的高阻挡层是具有至少约85重量％偏二氯乙烯含量，优选至少约90％的偏二氯乙烯共聚物。 还提供了制备层合膜的相关方法。

    Modular Disk Coextrusion Die With Melt Channeling Disk
    36.
    发明申请
    Modular Disk Coextrusion Die With Melt Channeling Disk 有权

    公开(公告)号：US20220362982A1

    公开(公告)日：2022-11-17

    申请号：US17581393

    申请日：2022-01-21

    申请人： Henry G. Schirmer

    发明人： Henry G. Schirmer

    IPC分类号： B29C48/34 ,  B29C48/06 ,  B29C48/10 ,  B29C48/18 ,  B29C48/21 ,  B29C48/335

    摘要： A modular disk coextrusion die is formed of a plurality of cells stacked together. Each cell includes an arrangement of thin annular disks, including at least a first cap disk, a first distribution disk, a first transition disk and a first spreader disk. The modular disk coextrusion die includes at least one channel disk having at least one inlet opening and at least two outlet openings per inlet opening. The thin annular disks are configured so that a first of the outlet openings of the channel disk is in fluid communication with the first distribution disk in the first cell and a second of the outlet openings in the channel disk is in fluid communication with the first distribution disk in the second cell. The channel disk provides for a more efficient utilization of space at the inlet of the modular disk coextrusion die and enables the feeding of up to twenty melt streams.

    Semi-continuous production of solid state polymeric foams
    39.
    发明授权
    Semi-continuous production of solid state polymeric foams 失效
    半连续生产固态聚合物泡沫

    公开(公告)号：US5684055A

    公开(公告)日：1997-11-04

    申请号：US354960

    申请日：1994-12-13

    申请人： Vipin Kumar ,  Henry G. Schirmer

    发明人： Vipin Kumar ,  Henry G. Schirmer

    IPC分类号： B29C44/34 ,  C08J9/00

    CPC分类号： B29C44/3453 ,  B29C44/3446 ,  B29C44/348 ,  C08J9/122 ,  C08J9/34 ,  C08J2201/032 ,  C08J2203/06 ,  C08J2205/044 ,  C08J2205/052 ,  C08J2325/06 ,  C08J2327/06 ,  C08J2333/12 ,  C08J2355/02 ,  C08J2367/02 ,  C08J2369/00 ,  Y10S264/13 ,  Y10S264/83

    摘要： The present invention provides a method for the semi-continuous production of microcellular foam articles. In a preferred embodiment, a roll of polymer sheet is provided with a gas channelling means interleaved between the layers of polymer. The roll is exposed to a non-reacting gas at elevated pressure for a period of time sufficient to achieve a desired concentration of gas within the polymer. The saturated polymer sheet is then separated from the gas channelling means and bubble nucleation and growth is initiated by heating the polymer sheet. After foaming, bubble nucleation and growth is quenched by cooling the foamed polymer sheet.

    摘要翻译： 本发明提供了一种半连续生产微孔泡沫制品的方法。 在一个优选实施例中，一卷聚合物片材设置有交错在聚合物层之间的气体通道装置。 将辊在升高的压力下暴露于非反应性气体一段足以在聚合物内达到所需浓度的气体的时间。 然后将饱和聚合物片材与气体引导装置分离，并且气泡成核，并通过加热聚合物片材开始生长。 发泡后，通过冷却发泡聚合物片来淬灭气泡成核和生长。

    Double bubble process for making strong, thin films
    40.
    发明授权
    Double bubble process for making strong, thin films 失效
    制作强力薄膜的双泡工艺

    公开(公告)号：US5674607A

    公开(公告)日：1997-10-07

    申请号：US409224

    申请日：1995-03-23

    申请人： Henry G. Schirmer

    发明人： Henry G. Schirmer

    IPC分类号： B29C55/28 ,  B32B27/32 ,  B32B27/36 ,  B32B27/00

    CPC分类号： B32B27/36 ,  B29C55/28 ,  B32B27/322 ,  B29K2023/06 ,  B29K2023/083 ,  B29K2025/00 ,  Y10S264/905 ,  Y10S428/91 ,  Y10T428/1379 ,  Y10T428/265 ,  Y10T428/31794 ,  Y10T428/31855 ,  Y10T428/31888 ,  Y10T428/31913

    摘要： Polymeric, thin oriented films can be made by use of a combination of a hot blown process and a blown bubble process, i.e. a double bubble process. The resulting film has use in replacing PVC for in store stretch wrap applications. Very low density polyethylene, VLDPE, is an especially preferred material for this process. It may be used as a monolayer, or as one layer of a multilayer structure. In practicing the invention, the polymer is extruded and hot blown, and heated to a temperature above its orientation temperature. This heating can be accomplished by the use of a heated liquid reservoir or sock disposed at the lower end of the primary bubble, inside the bubble. The hot blown heated film is then passed through a first set of pinch rolls, re-inflated into a blown bubble, and collapsed at a second set of pinch rolls. Thin, tough and elastic packaging materials are obtained by this process.

    摘要翻译： 聚合物薄取向膜可以通过使用热吹制法和吹塑法，即双泡法的组合来制备。 所得到的胶片用于替代PVC用于商店拉伸包装应用。 极低密度聚乙烯VLDPE是该方法的特别优选的材料。 它可以用作单层，或作为一层多层结构。 在实施本发明时，将聚合物挤出并热吹，并加热到高于其取向温度的温度。 这种加热可以通过使用设置在气泡内部的初级气泡的下端处的加热的液体储存器或袜子来实现。 然后将热吹的加热膜通过第一组夹送辊，再充气成吹塑气泡，并在第二组夹送辊处折叠。 通过这个过程可以获得薄而坚固和弹性的包装材料。