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    Carbon fibers having improved strength and modulus and an associated method and apparatus for preparing same
    155.
    发明授权
    Carbon fibers having improved strength and modulus and an associated method and apparatus for preparing same 有权
    具有改进的强度和模量的碳纤维及其制备方法和装置

    公开(公告)号：US09121112B2

    公开(公告)日：2015-09-01

    申请号：US14508408

    申请日：2014-10-07

    Applicant: Hexcel Corporation

    Inventor： Carlos A. León y León

    IPC: D01F9/12 ,  D01F9/22 ,  D01F9/32 ,  D02J1/22 ,  D02J13/00 ,  F27B9/28 ,  C01B31/02

    CPC classification number: D01F9/22 ,  C01B31/00 ,  C01B32/00 ,  C01B32/05 ,  D01F9/12 ,  D01F9/225 ,  D01F9/32 ,  D02J1/228 ,  D02J13/00 ,  D10B2101/12 ,  D10B2505/02 ,  F27B9/28 ,  Y10T428/2918

    Abstract: The invention is directed to carbon fibers having high tensile strength and modulus of elasticity. The invention also provides a method and apparatus for making the carbon fibers. The method comprises advancing a precursor fiber through an oxidation oven wherein the fiber is subjected to controlled stretching in an oxidizing atmosphere in which tension loads are distributed amongst a plurality of passes through the oxidation oven, which permits higher cumulative stretches to be achieved. The method also includes subjecting the fiber to controlled stretching in two or more of the passes that is sufficient to cause the fiber to undergo one or more transitions in each of the two or more passes. The invention is also directed to an oxidation oven having a plurality of cooperating drive rolls in series that can be driven independently of each other so that the amount of stretch applied to the oven in each of the plurality of passes can be independently controlled.

    Abstract translation: 本发明涉及具有高拉伸强度和弹性模量的碳纤维。 本发明还提供了一种制造碳纤维的方法和装置。 该方法包括使前体纤维前进通过氧化炉，其中纤维在氧化气氛中进行受控拉伸，其中拉伸载荷分布在通过氧化炉的多次通过中，这允许实现更高的累积延伸。 该方法还包括使纤维经受两次或更多次通过中的受控拉伸，其足以使纤维在两次或更多次通过中的每一次中经历一个或多个转变。 本发明还涉及一种氧化炉，其具有多个能够彼此独立驱动的协作驱动辊，使得可以独立地控制在多个通道中的每一个中施加到烘箱的拉伸量。

    Anchoring of septums in acoustic honeycomb
    156.
    发明授权
    Anchoring of septums in acoustic honeycomb 有权
    固定在隔音蜂窝中

    公开(公告)号：US09016430B2

    公开(公告)日：2015-04-28

    申请号：US14106424

    申请日：2013-12-13

    Applicant: Hexcel Corporation

    Inventor： Fumitaka Ichihashi

    IPC: E04B1/84 ,  B64C1/40 ,  G10K11/162 ,  G10K11/172 ,  E04B1/82 ,  E04B1/74

    CPC classification number: G10K11/162 ,  E04B2001/748 ,  G10K11/172 ,  Y10T29/4957 ,  Y10T29/49801

    Abstract: A honeycomb structure dial includes cells in which septums are located to provide acoustic dampening. The cells are formed by at least our walls wherein at least two of the walls are substantially parallel to each other. The septums include warp fibers and weft fibers that are substantially perpendicular to each other. The septums are oriented in the honeycomb cells such that the weft fibers and/or warp fibers are substantially perpendicular to the parallel walls.

    Abstract translation: 蜂窝结构表盘包括隔膜所在的单元，以提供声学阻尼。 细胞由至少我们的壁形成，其中至少两个壁基本上彼此平行。 隔膜包括基本上彼此垂直的经线纤维和纬纱。 隔膜在蜂窝状电池中取向，使得纬纱纤维和/或经纱基本垂直于平行壁。

    SOUND WAVE GUIDE FOR USE IN ACOUSTIC STRUCTURES
    157.
    发明申请
    SOUND WAVE GUIDE FOR USE IN ACOUSTIC STRUCTURES 有权
    声波结构中使用的声波指南

    公开(公告)号：US20150041247A1

    公开(公告)日：2015-02-12

    申请号：US13964629

    申请日：2013-08-12

    Applicant: Hexcel Corporation

    Inventor： Fumitaka Ichihashi

    IPC: B32B3/10 ,  F02C7/045

    CPC classification number: B32B3/10 ,  F02C7/045 ,  G10K11/172 ,  Y10T29/4957

    Abstract: The bandwidth or acoustical range of an acoustic structure is increased by locating a sound wave guide within the acoustic cell. The wave guide divides the cell into two acoustical chambers. The two chambers provide an effective increase in resonator length of the cell.

    Abstract translation: 声学结构的带宽或声学范围通过将声波引导定位在声学单元内来增加。 波导将电池分成两个声室。 两个室提供了电池的谐振器长度的有效增加。

    FINISH COMPOSITION
    158.
    发明申请
    FINISH COMPOSITION 审中-公开

    公开(公告)号：WO2019245671A1

    公开(公告)日：2019-12-26

    申请号：PCT/US2019/032038

    申请日：2019-05-13

    Applicant: HEXCEL CORPORATION

    Inventor： YURCHENKO, Michael E.

    IPC: D01F11/06 ,  D06M13/192 ,  D06M15/643 ,  C08G77/26 ,  C08K5/092

    Abstract: Provided is a composition for the treatment of fibers, such as PAN precursor fibers. The finish composition includes a polysiloxane; an emulsifier; water; and a dicarboxylic acid having a pK a from 1 to 4, and boiling point from 200 to 400 o C. The dicarboxylic acid may have the following formula (I) where R 1 is absent or a saturated or unsaturated, linear or branched, aromatic substituted or unsubstituted, hydrocarbon group; Y 1 and Y 2 are independently hydrogen, nitrogen, oxygen, sulfur, phosphorus, C 1 –C 6 alkyl group, or an alkoxy group; and X 1 and X 2 are independently one or more hydrogen atoms, a metal, a quaternary amine, or a hydrocarbon group having up to 6 carbon atoms, the hydrocarbon group being an alkyl group, an alkylene group, or an aromatic group, which may be branched or linear, and may optionally have one or more heteroatoms selected from the group consisting of nitrogen, oxygen, sulfur and phosphorus.

    INCREASING THE FILAMENT COUNT OF CARBON FIBER TOWS
    159.
    发明申请
    INCREASING THE FILAMENT COUNT OF CARBON FIBER TOWS 审中-公开

    公开(公告)号：WO2019231633A1

    公开(公告)日：2019-12-05

    申请号：PCT/US2019/031862

    申请日：2019-05-10

    Applicant: HEXCEL CORPORATION

    Inventor： DUST, Adam ,  LOESCH, Robert ,  DASARATHY, Harini ,  FORSGREN, Rebecca

    IPC: D02J1/18 ,  B29C70/50 ,  D02J1/08 ,  D01F9/00 ,  B29B15/12

    Abstract: The filament count of a carbon fiber tow is increased by spreading and commingling the carbon filaments of a first tow with the carbon filaments of a second tow. The carbon filaments of the first and second tows are spread apart using a gas stream. The spread tows are aligned with each other and brought into contact as they pass over a grating in the presence of the same or a different gas stream to form an entangled tow. The entangled tow is then formed into a combined tow. The modulus and denier of the carbon filaments in the first and second tows may be the same or they can be varied to provide combined tows with a wide range of filament counts and filament combinations.

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