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    Processes for making shaped honeycomb and honeycombs made thereby
    31.
    发明申请
    Processes for making shaped honeycomb and honeycombs made thereby 有权
    由此制成成形蜂窝和蜂窝的方法

    公开(公告)号：US20080145599A1

    公开(公告)日：2008-06-19

    申请号：US11639550

    申请日：2006-12-15

    Applicant: Subhotosh Khan ,  Gary Lee Hendren ,  Mikhail R. Levit

    Inventor： Subhotosh Khan ,  Gary Lee Hendren ,  Mikhail R. Levit

    IPC: B29C59/00 ,  B32B3/12

    CPC classification number: B29D99/0089 ,  B29C70/30 ,  B29K2101/10 ,  B29K2101/12 ,  B29L2031/608 ,  Y10T156/1003 ,  Y10T156/1016 ,  Y10T428/24149

    Abstract: This invention relates to processes of making a honeycomb comprising cells having edges forming a face of the honeycomb, the face defined by a plurality of points, at least two of the points located in different tangential planes, comprising the steps of: a) forming a honeycomb having expanded cells from a plurality of sheets comprising thermoplastic material having a melting point of from 120 to 350° C. and high modulus fiber having a modulus of 600 grams per denier (550 grams per dtex) or greater; b) impregnating the honeycomb with a thermoset resin; c) curing or partially curing the thermoset resin to form a cured or partially cured honeycomb; d) pressing the cured or partially cured honeycomb in a direction perpendicular to a plane of parallel lines of adhesive to fracture at least a portion of the thermoset resin; e) pulling the pressed honeycomb apart in a direction perpendicular to a plane of parallel lines of adhesive to form a honeycomb having fracture points; f) bending, molding, or forming the honeycomb having fracture points in a mold or over a form; g) heating the honeycomb to allow the thermoplastic material to flow to the fracture points; and h) cooling the honeycomb to substantially retain the shape of the mold or form. This invention also relates to a shaped honeycomb made by this process wherein less than 25 percent of the honeycomb cells have a re-entrant angle of greater than 180 degrees.

    Abstract translation: 本发明涉及制造蜂窝体的方法，该蜂窝体包括具有形成蜂窝表面的边缘的蜂窝，由多个点限定的面，位于不同切平面中的至少两个点，包括以下步骤：a） 具有从包含熔点为120-350℃的热塑性材料的多个片材膨胀的细胞的蜂窝体，以及具有600克/旦（550克/分特）或更大的模量的高模量纤维; b）用热固性树脂浸渍蜂窝体; c）固化或部分固化热固性树脂以形成固化或部分固化的蜂窝体; d）将所述固化或部分固化的蜂窝体沿垂直于平行的粘合剂线平面的方向挤压以破坏所述热固性树脂的至少一部分; e）沿垂直于平行线粘合剂平面的方向拉动按压的蜂窝以形成具有断裂点的蜂窝体; f）弯曲，模制或形成在模具中或在模具上具有断裂点的蜂窝体; g）加热蜂窝体以允许热塑性材料流到断裂点; 和h）冷却蜂窝体以基本保持模具或形式的形状。 本发明还涉及一种通过该方法制成的成形蜂窝体，其中小于25％的蜂窝单元具有大于180度的重入角度。

    Sheet structures having improved compression performance
    33.
    发明授权
    Sheet structures having improved compression performance 有权
    片材结构具有改进的压缩性能

    公开(公告)号：US08431213B2

    公开(公告)日：2013-04-30

    申请号：US12615447

    申请日：2009-11-10

    Applicant: Mikhail R. Levit

    Inventor： Mikhail R. Levit

    IPC: B32B27/02 ,  B32B5/02 ,  D21H13/26

    CPC classification number: D21H27/10 ,  D21H13/26 ,  Y10T428/249964

    Abstract: This invention relates to a pressboard comprising a plurality of plies having thermostable floc and at least 40 weight percent aramid fibrids, the pressboard having a final average thickness of 0.9 mm or greater, the pressboard further having an a void content of 25 volume percent or less and a ply adhesion (Y) in megapascals defined by the equation Y>2.97(X)(−0.25) wherein (X) is the thickness of the pressboard in millimeters; the pressboard can have a compressibility of 1.6 percent or less and compression set of 0.18 percent or less.

    Abstract translation: 本发明涉及一种压板，其包括具有热稳定絮状物和至少40重量％芳族聚酰胺纤条体的多个层，所述压板的最终平均厚度为0.9mm或更大，所述压板还具有25体积％以下的空隙含量 和由公式Y> 2.97（X）（ - 0.25）定义的以兆帕为单位的帘布层粘合（Y），其中（X）是压板的厚度，单位为毫米; 压板的压缩率可以为1.6％以下，压缩永久变形为0.18％以下。

    Polyareneazole/wood pulp and methods of making same
    37.
    发明授权
    Polyareneazole/wood pulp and methods of making same 失效
    聚芳纶/木浆及其制造方法

    公开(公告)号：US07727356B2

    公开(公告)日：2010-06-01

    申请号：US11639549

    申请日：2006-12-15

    Applicant: Achim Amma ,  Mikhail R. Levit

    Inventor： Achim Amma ,  Mikhail R. Levit

    IPC: D21F11/00 ,  D21H13/10

    CPC classification number: D21H13/20 ,  C09K3/1028 ,  D21B1/12 ,  D21H11/18 ,  D21H15/02 ,  F16D69/026

    Abstract: The present invention relates to wood pulp and polyareneazole pulp for use as reinforcement material in products including for example friction materials, fluid sealing materials, and papers. The pulp comprises (a) irregularly shaped, wood pulp fibrous structures, (b) irregularly shaped, polyareneazole fibrous structures, and (c) water, whereby wood pulp fibrils and/or stalks are substantially entangled with polyareneazole fibrils and/or stalks. The invention further relates to processes for making such wood pulp and polyareneazole pulp.

    Abstract translation: 本发明涉及用作产品中的增强材料的木浆和聚are唑浆，包括例如摩擦材料，流体密封材料和纸。 纸浆包括（a）不规则形状的木浆纤维结构，（b）不规则形状的聚芳腈纤维结构和（c）水，由此木浆原纤维和/或茎基本上与聚芳纶原纤维和/或茎缠结。 本发明还涉及制备这种木浆和聚azole唑浆的方法。

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