中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

69 records (took 0.019 seconds)

    Honeycomb from controlled porosity paper
    23.
    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

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

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

    IPC: B32B3/12

    CPC classification number: D21H13/00 ,  D21H27/00 ,  Y10S428/902 ,  Y10T428/1303 ,  Y10T428/1352 ,  Y10T428/24149 ,  Y10T428/24165

    Abstract: 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.

    Abstract translation: 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
    24.
    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。

    Laminate electrical insulation part
    28.
    发明授权
    Laminate electrical insulation part 有权
    层压电绝缘部分

    公开(公告)号：US08039095B2

    公开(公告)日：2011-10-18

    申请号：US11804531

    申请日：2007-05-18

    Applicant: Peter J. Hollberg ,  Mikhail R. Levit ,  Brian P. Little ,  Xun Ma ,  Brian Keith Trask ,  Roger Curtis Wicks ,  Bruce A. Yost

    Inventor： Peter J. Hollberg ,  Mikhail R. Levit ,  Brian P. Little ,  Xun Ma ,  Brian Keith Trask ,  Roger Curtis Wicks ,  Bruce A. Yost

    IPC: B32B7/02

    CPC classification number: B32B5/26 ,  B32B27/36 ,  H01B3/423 ,  Y10T428/24942 ,  Y10T428/31504 ,  Y10T428/31786

    Abstract: This invention relates to a laminate electrical insulation part for an electrical device comprising a thermoplastic film positioned between, adjacent to, and attached to two nonwoven sheets. Each of the nonwoven sheets consists of multicomponent polymeric fibers comprising at least a first polymer and a second polymer, the first polymer having a melting point that is at least 15 degrees Celsius lower than both the melting point of the second polymer and the melting point of the thermoplastic film, and the film is attached to the nonwoven sheets by the first polymer in the nonwoven sheets. The electrical insulation part has a breakdown voltage of at least 3 kilovolts, and a surface having a dynamic frictional coefficient of 0.25 or less. This invention also relates to an electrical device component comprising the laminate electrical insulation part.

    Abstract translation: 本发明涉及一种用于电气设备的层压电绝缘部件，其包括位于两个非织造片材之间，邻近并连接到两个非织造片材上的热塑性膜。 每个非织造片材由包含至少第一聚合物和第二聚合物的多组分聚合物纤维组成，第一聚合物的熔点比第二聚合物的熔点低至少15摄氏度，熔点为 热塑性薄膜和薄膜通过非织造薄片中的第一聚合物附着到非织造薄片上。 电绝缘部件具有至少3千伏的击穿电压和动态摩擦系数为0.25以下的表面。 本发明还涉及包括层压电绝缘部件的电气装置部件。

    Folded Core Having a High Compression Modulus and Articles Made from the Same
    29.
    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：US20110244193A1

    公开(公告)日：2011-10-06

    申请号：US12894459

    申请日：2010-09-30

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

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

    IPC: B32B3/28 ,  B32B5/02 ,  B32B27/04

    CPC classification number: D21H13/26 ,  B31D3/002 ,  D21H17/48 ,  D21H25/14 ,  Y10T428/24636

    Abstract: 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.

    Abstract translation: 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， 固化树脂，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 在用树脂浸渍之前的非织造片材不超过每100毫升30秒 也涉及结合这种折叠芯的复合结构。

Patent Agency Ranking