公开(公告)号：US20240150958A1

公开(公告)日：2024-05-09

申请号：US18334081

申请日：2023-06-13

Applicant: Hexcel Corporation

Inventor： Michael Yurchenko ,  Brooks Lively ,  Dale Schmidt ,  Winston Clark Herren

IPC: D06M15/55

CPC classification number: D06M15/55 ,  D06M2200/40 ,  D10B2101/12

Abstract: Provided are sizing compositions, and more particularly, sizing compositions comprising an epoxy and a carboxylate salt of an amine compound for the treatment of carbon fiber. The structure of the amine used to make the carboxylate salts is RnXmQ, wherein Q is an amine-containing group, X is a polyether group, and R is an aryl or alkyl group, either linear or branched, saturated or unsaturated, or a combination thereof. m and n are integers greater than or equal to 0. The compositions reduce or eliminate sheen and luster on carbon fibers in finished goods. Carbon fiber-reinforced composite materials and carbon fibers incorporating said sizing compositions are also provided.

公开(公告)号：US11485833B2

公开(公告)日：2022-11-01

申请号：US16660934

申请日：2019-10-23

Applicant: Hexcel Corporation

Inventor： Yan Zhu ,  Gordon T. Emmerson

IPC: C08J5/24 ,  B32B27/20 ,  B32B27/26 ,  B32B27/38 ,  C08K3/013 ,  C08K3/04 ,  C08K5/00 ,  C08K5/375 ,  C08K5/41 ,  B64C1/00 ,  C08L63/00 ,  C08K3/26

Abstract: Pre-impregnated composite material (prepreg) that can be cured/molded to form aerospace composite parts. The prepreg includes carbon reinforcing fibers and an uncured resin matrix. The resin matrix includes an epoxy resin component, polyethersulfone as a toughening agent, a thermoplastic particle component, a nanoparticle component and a curing agent.

公开(公告)号：US11299824B2

公开(公告)日：2022-04-12

申请号：US16546990

申请日：2019-08-21

Applicant: Hexcel Corporation

Inventor： Peter Andrew Ferrin ,  Devon Cadwaladar Todd Thomas

IPC: D01F9/22 ,  C01B32/05 ,  D01F9/32

Abstract: A method for making carbon fiber in which the tensile strength of carbon fiber is increased without dehumidifying the ambient air that enters every oxidation oven in a multiple oxidation oven system. A positive effect on tensile strength is provided when ambient air entering only the first oven in a series of oxidation ovens is dehumidified. In addition, the ambient air entering the last oven is not dehumidified when one or more of the preceding oxidation ovens is operated with dehumidified air.

公开(公告)号：US20210122891A1

公开(公告)日：2021-04-29

申请号：US16660934

申请日：2019-10-23

Applicant: Hexcel Corporation

Inventor： Yan ZHU ,  Gordon T. EMMERSON

IPC: C08J5/24 ,  C08K3/013 ,  C08K3/04 ,  C08K5/00 ,  C08K5/375 ,  C08K5/41 ,  B64C1/00

Abstract: Pre-impregnated composite material (prepreg) that can be cured/molded to form aerospace composite parts. The prepreg includes carbon reinforcing fibers and an uncured resin matrix. The resin matrix includes an epoxy resin component, polyethersulfone as a toughening agent, a thermoplastic particle component, a nanoparticle component and a curing agent.

公开(公告)号：US20190382950A1

公开(公告)日：2019-12-19

申请号：US16407365

申请日：2019-05-09

Applicant: Hexcel Corporation

Inventor： Michael E. Yurchenko

IPC: D06M15/643 ,  D06M13/192 ,  D06M13/207 ,  D06M13/188 ,  D06M13/342 ,  D06M13/355 ,  D06M13/402 ,  D06M13/203 ,  D06M13/17 ,  D01F9/22

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 pKa from 1 to 4, and boiling point from 200 to 400° C. The dicarboxylic acid may have the following formula: where R1 is absent or a saturated or unsaturated, linear or branched, aromatic substituted or unsubstituted, hydrocarbon group; Y1 and Y2 are independently hydrogen, nitrogen, oxygen, sulfur, phosphorus, C1-C6 alkyl group, or an alkoxy group; and X1 and X2 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.

公开(公告)号：US20190322825A1

公开(公告)日：2019-10-24

申请号：US16502277

申请日：2019-07-03

Applicant: Hexcel Corporation

Inventor： Yen-Seine WANG

IPC: C08J5/24 ,  C08J5/04

Abstract: Pre-impregnated composite material (prepreg) that can be cured/molded to form aerospace composite parts. The prepreg includes carbon reinforcing fibers and an uncured resin matrix. The resin matrix includes an epoxy component, polyethersulfone as a toughening agent, and a curing agent. The resin matrix is also composed of a thermoplastic particle component that includes hybrid polyamide particles wherein each hybrid particle contains a mixture of amorphous and semi-crystalline polyamide.

公开(公告)号：US10040897B2

公开(公告)日：2018-08-07

申请号：US15110927

申请日：2015-02-06

Applicant: Hexcel Composites Limited ,  Hexcel Corporation

Inventor： Chris Mason ,  Martin Simmons ,  Yen-Seine Wang

IPC: C08L63/00 ,  C08G59/50 ,  C08G59/54 ,  C08K7/02

CPC classification number: C08G59/5033 ,  C08G59/54 ,  C08K7/02 ,  C08L63/00

Abstract: Amino benzoates have been found to be useful curing agents for epoxy resins particularly para amino benzoates containing at least two primary amine groups and at least two carboxyl moieties, the amino benzoates are particularly useful as curatives in prepregs.

公开(公告)号：US20180201783A1

公开(公告)日：2018-07-19

申请号：US15872598

申请日：2018-01-16

Applicant: Hexcel Corporation

Inventor： Scott DeFelice ,  Anthony DeCarmine

IPC: C08L71/12 ,  B29C64/153 ,  C08J3/12 ,  C08G65/40 ,  C08J5/04

Abstract: A powder composition suitable for use in laser sintering for printing a three-dimensional object. The powder composition includes a polyaryletherketone (PAEK) powder having a plurality of particles. The plurality of particles having a mean diameter of D50. The composition includes a plurality of carbon fibers having a mean length L50. L50 is greater than D50. The particles are substantially non-spherical. A portion of the carbon fiber is embedded into the particle via high intensity mixing.

公开(公告)号：US20180023244A1

公开(公告)日：2018-01-25

申请号：US15213564

申请日：2016-07-19

Applicant: Hexcel Corporation

Inventor： Michael Yurchenko

IPC: D06M14/36 ,  D06M15/59 ,  D06M15/55 ,  D01F11/14

CPC classification number: D06M14/36 ,  C08J5/042 ,  C08J5/06 ,  D01F11/14 ,  D06M10/10 ,  D06M15/3562 ,  D06M15/55 ,  D06M15/59 ,  D06M15/61 ,  D06M23/12 ,  D06M2101/40 ,  D06M2400/01 ,  D10B2505/12

Abstract: A composite carbon fiber having a carbon fiber to which an amine-functionalized polymer is electro-grafted onto a surface thereof is provided. Electro-grafting the amine-functionalized polymer onto the surface of the carbon fiber results in a composite carbon fiber in which the polymer is covalently bonded to the fiber, and in which a significant number of reactive amine groups are available for subsequent reactions, such as for reacting with a resin matrix in the production of a fiber reinforced composite. As a result, the composite carbon fibers may be particularly useful in producing fibers reinforced composites that exhibit improved interlaminar strength. Fiber reinforced composites are also provided.

公开(公告)号：US09779715B1

公开(公告)日：2017-10-03

申请号：US15220043

申请日：2016-07-26

Applicant: Hexcel Corporation

Inventor： Matthew Seldal

IPC: B32B37/12 ,  B32B3/12 ,  B64C1/40 ,  G10K11/16 ,  G10K11/168 ,  B32B37/14 ,  B32B38/00 ,  B64D29/00 ,  B32B37/00

CPC classification number: B64C1/40 ,  B29C2791/002 ,  B29C2793/0009 ,  B29D24/005 ,  B31D3/0292 ,  B64D29/00 ,  E04B2001/748 ,  G10K11/162 ,  G10K11/168 ,  G10K11/172

Abstract: An existing acoustic honeycomb panel having a radius of curvature is cut into segments that have longitudinal and lateral sides that extend between the edges of the honeycomb. The segments are bonded together along their longitudinal or lateral sides to form a segmented acoustic honeycomb in which the radius of curvature is different from the radius of curvature of the original acoustic honeycomb panel. The shape of the longitudinal or lateral sides of the segments and the thickness of the adhesive bond can be controlled to provide segmented acoustic honeycomb panels that are tightly curved and which are suitable for use in demanding noise damping applications, such as jet engine nacelles.