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60 条记录 (耗时 0.019 秒)

    Honeycomb containing poly(paraphenylene terephthalamide) paper with aliphatic polyamide binder and articles made therefrom
    31.
    发明授权
    Honeycomb containing poly(paraphenylene terephthalamide) paper with aliphatic polyamide binder and articles made therefrom 有权
    含有聚对苯二甲酰对苯二胺的蜂窝纸与脂肪族聚酰胺粘合剂和由其制成的制品

    公开(公告)号：US08025949B2

    公开(公告)日：2011-09-27

    申请号：US11639457

    申请日：2006-12-15

    申请人： Mikhail R. Levit ,  Subhotosh Khan ,  Gary Lee Hendren

    发明人： Mikhail R. Levit ,  Subhotosh Khan ,  Gary Lee Hendren

    IPC分类号： B32B3/12 ,  B32B5/06 ,  B32B5/16 ,  E04B1/74

    CPC分类号： D21H13/26 ,  B31D3/0284 ,  B32B3/12 ,  B32B27/02 ,  B32B27/04 ,  B32B27/34 ,  D21H17/55 ,  Y10T428/24149 ,  Y10T428/254

    摘要： This invention relates to a honeycomb having cells of paper, comprising by weight 3 to 30 parts by weight aliphatic polyamide binder, and 70 to 97 parts of a poly(paraphenylene terephthalamide) fiber having a modulus of 600 grams per denier (550 grams per dtex) or greater, based on the aliphatic polyamide binder and PPD-T fiber in the paper. In another embodiment, the honeycomb is made from paper comprising by weight 30 to 50 parts aliphatic polyamide binder, and 50 to 70 parts of a poly(paraphenylene terephthalamide) fiber having a modulus of 600 grams per denier (550 grams per dtex) or greater, based on the aliphatic polyamide binder and PPD-T fiber in the paper. Both papers have an average specific tensile index of 60 (lbs/in)/opsy (310 Nm/g) or greater. Articles made from the honeycombs include a panel or an aerodynamic structure.

    摘要翻译： 本发明涉及一种具有纸单元的蜂窝体，其重量为3〜30重量份脂肪族聚酰胺粘合剂，70〜97重量份的聚对苯二甲酰对苯二胺纤维，其模量为600克/旦（550克/分） ）或更大，基于纸中的脂族聚酰胺粘合剂和PPD-T纤维。 在另一个实施方案中，蜂窝体由包含重量为30至50份脂族聚酰胺粘合剂的纸和50至70份模量为600克/旦（550克/分特）或更大的聚（对苯二甲酰对苯二甲酰胺）纤维的纸制成 ，基于脂肪族聚酰胺粘合剂和PPD-T纤维。 两种纸的平均比拉伸指数为60（lbs / in）/ opsy（310Nm / g）或更大。 由蜂窝制成的物品包括面板或空气动力学结构。

    Shaped honeycomb
    32.
    发明授权
    Shaped honeycomb 有权
    形蜂窝

    公开(公告)号：US07771809B2

    公开(公告)日：2010-08-10

    申请号：US11639468

    申请日：2006-12-15

    申请人： Gary Lee Hendren ,  Mikhail R. Levit ,  Subhotosh Khan

    发明人： Gary Lee Hendren ,  Mikhail R. Levit ,  Subhotosh Khan

    IPC分类号： B32B3/12

    CPC分类号： B31D3/0292 ,  B29D99/0089 ,  B29L2031/608 ,  B32B3/12 ,  Y10S428/902 ,  Y10T428/1303 ,  Y10T428/1352 ,  Y10T428/24149 ,  Y10T428/24165

    摘要： This invention relates to a honeycomb comprising cells having edges forming a face of the honeycomb, the face defined by a plurality of points and having an area of curvature wherein at least two of the points are located in different tangential planes, the walls of the cells comprising 5 to 50 parts by weight thermoplastic material having a melting point of from 120° C. to 350° C., and 50 to 95 parts by weight of a high modulus fiber having a modulus of 600 grams per denier (550 grams per dtex) or greater, based on the total amount of thermoplastic material and high modulus fiber in the walls; wherein less than 25 percent of the honeycomb cells in the area of curvature have a re-entrant angle of greater than 180 degrees. This invention also relates to articles including panels and/or aerodynamic structures comprising the honeycomb.

    摘要翻译： 本发明涉及一种蜂窝体，其包括具有形成蜂窝表面的边缘的蜂窝体，所述蜂窝体由多个点限定并具有曲率区域，其中至少两个点位于不同的切向平面中， 包含5至50重量份的熔点为120℃至350℃的热塑性材料和50至95重量份的模量为600克/旦（550克/分）的高模量纤维 ）或更大，基于壁中的热塑性材料和高模量纤维的总量; 其中在曲率区域中小于25％的蜂窝状电池具有大于180度的重入角度。 本发明还涉及包括蜂窝板的面板和/或空气动力学结构的制品。

    Folded Core Having a High Compression Modulus and Articles Made from the Same
    33.
    发明申请
    Folded Core Having a High Compression Modulus and Articles Made from the Same 审中-公开
    具有高压缩模量的折叠芯和由其制成的制品

    公开(公告)号：US20100048078A1

    公开(公告)日：2010-02-25

    申请号：US12542766

    申请日：2009-08-18

    申请人： Rainer Kehrle ,  Yves Klett ,  Mikhail R. Levit ,  Olivier Lengwiler

    发明人： Rainer Kehrle ,  Yves Klett ,  Mikhail R. Levit ,  Olivier Lengwiler

    IPC分类号： B32B27/02 ,  D04H13/00 ,  B32B27/34 ,  B32B27/06

    CPC分类号： D21H13/26 ,  D21H17/48 ,  D21H25/14 ,  Y10T442/20 ,  Y10T442/2902 ,  Y10T442/60 ,  Y10T442/656 ,  Y10T442/674

    摘要： This invention is directed to a folded tessellated core structure having a high compression modulus. The core structure comprises a nonwoven sheet and a cured resin in an amount such that the weight of cured resin as a percentage of combined weight of cured resin and nonwoven sheet is at least 50 percent, The nonwoven sheet further comprises fibers having a modulus of at least 200 grams per denier (180 grams per dtex) and a tenacity of at least 10 grams per denier (9 grams per dtex) wherein, prior to impregnating with the resin, the nonwoven sheet has an apparent density calculated from the equation Dp=K×((dr×(100−% r)% r)/(1+dr/ds×(100−% r)% r), where Dp is the apparent density of the sheet before impregnation, dr is the density of cured resin, ds is the density of solid material in the sheet before impregnation, % r is the cured resin content in the final core structure in weight %, K is a number with a value from 1.0 to 1.5, Further, the Gurley porosity of the nonwoven sheet before impregnation with the resin is no greater than 30 seconds per 100 milliliters. The invention is also directed to composite structures incorporating such folded core.

    摘要翻译： 本发明涉及具有高压缩模量的折叠镶嵌核心结构。 芯结构包括非织造薄片和固化树脂，其量使得固化树脂的重量占固化树脂和非织造薄片的组合重量的百分比至少为50％。该非织造薄片还包括模量在 至少200克/旦（180克/分），强度至少为10克/旦（9克/分特），其中在用树脂浸渍之前，非织造片具有从方程Dp = K计算的表观密度 ×（（dr×（100％r）％r）/（1 + dr / ds×（100-％r）％r），其中Dp是浸渍前的片材的表观密度，dr是固化的密度 树脂，ds是浸渍前的片材中的固体材料的密度，％r是最终芯结构中的固化树脂含量的重量％，K是1.0至1.5的数值。此外，Gurley孔隙率 用树脂浸渍之前的无纺布片材每100毫升不超过30秒 还涉及结合这种折叠芯的复合结构。

    Honeycomb from controlled porosity paper
    36.
    发明申请
    Honeycomb from controlled porosity paper 有权
    来自受控孔隙纸的蜂窝

    公开(公告)号：US20080145601A1

    公开(公告)日：2008-06-19

    申请号：US11640045

    申请日：2006-12-15

    申请人： Mikhail R. Levit ,  Subhotosh Khan ,  Gary Lee Hendren

    发明人： Mikhail R. Levit ,  Subhotosh Khan ,  Gary Lee Hendren

    IPC分类号： B32B3/12

    CPC分类号： D21H13/00 ,  D21H27/00 ,  Y10S428/902 ,  Y10T428/1303 ,  Y10T428/1352 ,  Y10T428/24149 ,  Y10T428/24165

    摘要： This invention relates to an improved high performance honeycomb, methods for making the same, and articles including aerodynamic structures comprising the honeycomb, the honeycomb made with a paper that allows rapid impregnation of the honeycomb by structural resins while retarding excessive impregnation of node-line adhesives during manufacture. The honeycomb comprises a paper having a Gurley porosity of 2 seconds or greater and comprising high modulus fiber and thermoplastic binder having a melt point of from 120° C. to 350° C., wherein at least 30 percent by weight of the total amount of thermoplastic material is in the form of discrete film-like particles in the paper, the particles having a film thickness of about 0.1 to 5 micrometers and a minimum dimension perpendicular to that thickness of at least 30 micrometers.

    摘要翻译： 本发明涉及一种改进的高性能蜂窝体及其制造方法，以及包括蜂窝状物的蜂窝状物品的蜂窝状制品，由纸制成的蜂窝体，其能够通过结构树脂快速浸渍蜂窝体，同时延缓节点线粘合剂的过度浸渍 在制造过程中。 蜂窝体包括具有2秒或更大的Gurley孔隙度的纸，并且包括熔体点为120℃至350℃的高模量纤维和热塑性粘合剂，其中至少30重量％ 热塑性材料是纸中离散膜状颗粒的形式，该颗粒的膜厚度为约0.1至5微米，最小尺寸垂直于该厚度为至少30微米。

    Processes for making shaped honeycomb and honeycombs made thereby
    37.
    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

    申请人： Subhotosh Khan ,  Gary Lee Hendren ,  Mikhail R. Levit

    发明人： Subhotosh Khan ,  Gary Lee Hendren ,  Mikhail R. Levit

    IPC分类号： B29C59/00 ,  B32B3/12

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

    摘要： 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.

    摘要翻译： 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
    39.
    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

    申请人： Mikhail R. Levit

    发明人： Mikhail R. Levit

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

    CPC分类号： D21H27/10 ,  D21H13/26 ,  Y10T428/249964

    摘要： 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.

    摘要翻译： 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。