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    Electrically Gradated Carbon Foam
    43.
    发明申请
    Electrically Gradated Carbon Foam 失效
    电分级碳泡沫

    公开(公告)号：US20080299378A1

    公开(公告)日：2008-12-04

    申请号：US11964036

    申请日：2007-12-25

    Applicant: Jesse M. Blacker ,  Janusz W. Plucinski

    Inventor： Jesse M. Blacker ,  Janusz W. Plucinski

    IPC: B32B5/18

    CPC classification number: C04B38/0022 ,  C04B35/52 ,  C04B2111/00413 ,  C04B2111/00862 ,  C04B2111/90 ,  H01Q17/00 ,  Y10T428/249961 ,  Y10T428/249967

    Abstract: Electrically gradated carbon foam materials that have changing or differing electrical properties through the thickness of the carbon foam material and methods for making these electrically gradated carbon foam materials are described herein. In some embodiments, the electrically gradated carbon foam materials exhibit increasing electrical resistivity through the thickness of the carbon foam material such that the electrical resistivity near a second surface of the carbon foam is at least 2 times greater than the electrical resistivity near a first surface of the carbon foam. These electrically gradated carbon foam materials may be used as radar absorbers, as well as in electromagnetic interference (EMI) shielding schemes.

    Abstract translation: 这里描述了通过碳泡沫材料的厚度具有变化或不同电性能的电分级碳泡沫材料以及用于制造这些电分级碳泡沫材料的方法。 在一些实施例中，电分级碳泡沫材料通过碳泡沫材料的厚度显示出增加的电阻率，使得碳泡沫的第二表面附近的电阻率比第一表面附近的电阻率高至少2倍 碳泡沫。 这些电分级碳泡沫材料可用作雷达吸收体，以及电磁干扰（EMI）屏蔽方案。

    Method for Producing Polyolefin-Based Resin Crosslinked Foamed Sheet and Polyolefin-Based Resin Crosslinked Foamed Sheet
    49.
    发明申请
    Method for Producing Polyolefin-Based Resin Crosslinked Foamed Sheet and Polyolefin-Based Resin Crosslinked Foamed Sheet 有权
    聚烯烃系树脂交联发泡片和聚烯烃系树脂交联发泡片的制造方法

    公开(公告)号：US20080003421A1

    公开(公告)日：2008-01-03

    申请号：US11665496

    申请日：2005-10-18

    Applicant: Michio Matsumura ,  Patrick Geraedts ,  Patrick Roegies

    Inventor： Michio Matsumura ,  Patrick Geraedts ,  Patrick Roegies

    IPC: C08J9/38 ,  B32B5/14

    CPC classification number: E04B1/6812 ,  B29C44/5627 ,  B32B5/20 ,  Y10T428/249961 ,  Y10T428/269

    Abstract: The present invention provides a method for producing a polyolefin-based resin crosslinked foamed sheet which is excellent in heat resistance and flexibility, has a small diameter of cells, can be developed in various utilities, and is excellent in vacuum moldability. The method for producing a polyolefin-based resin crosslinked foamed sheet according to the present invention comprises the steps of supplying a foamed sheet with closed cells, comprising a polyolefin-based resin, to a gap between one pair of rolls which have different circumferential speeds, and are rotated so that rotation directions on facing surfaces are the same direction, and applying a compression force and a shear stress to the foamed sheet with closed cells simultaneously to rupture a part of closed cells of the foamed sheet with closed cells to communicate closed cells into open cells.

    Abstract translation: 本发明提供一种耐热性和柔软性优异的聚烯烃类树脂交联发泡片材的制造方法，其具有小直径的细胞，可以在各种用途中显影，并且真空成型性优异。 本发明的聚烯烃类树脂交联发泡片材的制造方法包括以下步骤：向具有不同圆周速度的一对辊之间的间隙供给包含聚烯烃类树脂的封闭孔的发泡片材， 旋转，使面对面上的旋转方向相同，向闭孔的发泡片施加压缩力和剪切应力同时封闭发泡片的一部分闭孔，使闭孔 进入开放细胞。

    Foamed article with absorbing characteristics on one side and non-absorbing characteristics on the other side and method for producing same
    50.
    发明授权
    Foamed article with absorbing characteristics on one side and non-absorbing characteristics on the other side and method for producing same 有权
    一侧具有吸收特性的发泡制品和另一侧的非吸收特性及其制造方法

    公开(公告)号：US07244489B2

    公开(公告)日：2007-07-17

    申请号：US10436225

    申请日：2003-05-12

    Applicant: Joseph E. Owensby

    Inventor： Joseph E. Owensby

    IPC: B32B5/14

    CPC classification number: C08J9/36 ,  A47L13/16 ,  B29C44/005 ,  B29C44/24 ,  B29C44/5654 ,  Y10T428/249961 ,  Y10T428/249981 ,  Y10T428/249987 ,  Y10T428/249991 ,  Y10T428/249992

    Abstract: There is provided a multi-layered foamed article. The foam article has a layer of foam material on either side of an inner peel layer disposed roughly in the middle of the foam. The portion of the foam in closest proximity to the peel layer is subjected to the greatest amount of heat during extrusion forming mostly large open cell foam. The foam near the surface of the multiplayer foam article is cooled by the atmosphere or contact with cooling surfaces and comprises mostly small closed-cell foam. There is also provided a method for making a multi-layer foamed article by co-extruding an inner peel layer sandwiched between two expanded layers of a foam material. Each of the expanded foam layers on either side of the peel layer of the article is easily peeled or stripped from the peel inner layer and the multi-layer article is converted into a foamed article with absorbing characteristics on one side and non-absorbing characteristics on the other side. Thus, the foam is predominantly open-cell on one side of the structure and predominantly closed-cell on the opposing side. The open-cell portion of the article is highly absorbent and easily soaks up liquids. The closed cell portion of the foam article acts as a waterproof layer preventing liquid from moving all the way through the thickness of the foam. After blowing the polymer melt, the extrusion product comprises a foam article with a peel layer disposed roughly in the middle of the foam. A preferred embodiment of the multi-layer article is polystyrene foam for the two outer layers and a polyethylene film as the inner peel layer.

    Abstract translation: 提供了多层泡沫制品。 泡沫制品在大致在泡沫中间设置的内部剥离层的任一侧上具有一层泡沫材料。 最接近剥离层的泡沫的部分在挤出成形期间受到最大量的热量，主要是大的开孔泡沫。 多层泡沫制品表面附近的泡沫被大气冷却或与冷却表面接触，并且主要包含较小的闭孔泡沫。 还提供了一种通过共挤出夹在泡沫材料的两个膨胀层之间的内部剥离层来制造多层发泡制品的方法。 制品的剥离层的任一侧上的每个膨胀泡沫层容易从剥离内层剥离或剥离，并且多层制品被转化成具有一侧具有吸收特性的发泡制品和非吸收特性 另一边。 因此，泡沫在结构的一侧上主要是开孔的，并且在相对侧上主要是闭孔的。 制品的开孔部分是高吸收性的并容易吸收液体。 泡沫塑料制品的闭孔部分用作防水层，防止液体一直移动通过​​泡沫的厚度。 在吹塑聚合物熔体之后，挤出产品包括具有大致位于泡沫中间的剥离层的泡沫制品。 多层制品的优选实施方案是用于两个外层的聚苯乙烯泡沫和作为内层剥离层的聚乙烯膜。

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