公开(公告)号：US20240262790A1

公开(公告)日：2024-08-08

申请号：US18041065

申请日：2021-08-21

Applicant: HEXCEL COMPOSITES LIMITED

Inventor： Christopher MASON

IPC: C07C275/40 ,  C08G59/40 ,  C08J5/24

CPC classification number: C07C275/40 ,  C08G59/4021 ,  C08J5/24 ,  C08J2363/00

Abstract: Bisorthohydroxy aromatic urones and their use as curatives and cure accelerators in resin systems particularly epoxy resin systems provide formulations with good outlife, low curing temperatures and desirable glass transition temperatures after curing, they are particularly useful in prepregs used in the production of components for the aerospace and wind turbine industries.

公开(公告)号：US11879052B2

公开(公告)日：2024-01-23

申请号：US17603209

申请日：2020-04-17

Applicant: HEXCEL COMPOSITES LIMITED

Inventor： Christopher Robert Mason

IPC: C08K5/5313 ,  C08K5/3445

CPC classification number: C08K5/5313 ,  C08K5/3445 ,  C08K5/3445 ,  C08K5/5313

Abstract: The host compound in a clathrate is an amino or hydroxyl containing aromatic phosphorous compound, clathrates containing a resin curative and their use in curable resin compositions to produce moulded articles particularly fibre reinforced articles.

公开(公告)号：US11697254B2

公开(公告)日：2023-07-11

申请号：US17602095

申请日：2020-04-02

Applicant: Hexcel Composites Limited ,  Hexcel Holding GMBH ,  Hexcel Corporation

Inventor： Johannes Moser ,  Yu-Chen Hung ,  Erin Reagan

IPC: B29C70/52 ,  B29C70/54 ,  B29C70/68

CPC classification number: B29C70/525 ,  B29C70/54 ,  B29C70/682

Abstract: An assembly (113) for composite manufacture is provided. The assembly comprises a cured resin impregnated reinforcement material (112) comprising a fibre component and a resin matrix component, in which the resin matrix component comprises polyurethane, the assembly having a length to width ratio of at least 5:1, and the assembly defining a longitudinal direction (L) along its length; and a peel ply (116) in contact with the cured resin impregnated reinforcement material (112), the peel ply (116) comprising a woven layer having a plurality of longitudinal fibres (118) extending in the longitudinal direction (L); and a plurality of transverse fibres (120) extending in a transverse direction (T) normal to the longitudinal direction (L); in which the areal density of the plurality of transverse fibres (120) is higher than the areal density of the plurality of longitudinal fibres (118).

公开(公告)号：US20220289924A1

公开(公告)日：2022-09-15

申请号：US17770567

申请日：2020-09-23

Applicant: HEXCEL COMPOSITES LIMITED

Inventor： Mark WHITER

IPC: C08J5/24 ,  B32B5/02 ,  B32B27/38 ,  B32B27/20 ,  B29C70/18

Abstract: A moulding material which comprises: (a) a structural reinforcement layer comprising a fibrous reinforcement material optionally in combination with a second resin composition; and (b) a surface enhancing layer, for contacting a surface of a mould or tool, comprising a first non-woven fibre carrier in combination with a first resin composition containing a rheology modifier and a curing agent, wherein the first resin composition provides an external mould or tool-contacting surface of the moulding material. The moulding material can be cured to form a moulded article having a high quality surface finish that requires minimal preparation before painting and/or application in its intended use. The moulded article may be provided with sacrificial discontinuous indicator means to assist in uniform removal of a part of the surface enhancing layer of the moulded article for specific applications.

公开(公告)号：US11358828B2

公开(公告)日：2022-06-14

申请号：US16756074

申请日：2018-10-18

Applicant: HEXCEL COMPOSITES LIMITED ,  HEXCEL CORPORATION

Inventor： John Ellis ,  Anthony Loccisano

IPC: B65H49/20

Abstract: There is provide a process for unwinding material from a spool (2) wherein the angle (Θ) of take off at the first contact point (4) for the unwind is always in the range 0±20°, and wherein the first contact point (4) for the unwind is no more than 600 mm from the axis (3) of rotation of the spool (2). There is also provided an apparatus for the unwinding of material from a spool (2) comprising an axis (3) upon which a spool (2) may be rotatably mounted and a static first contact point (4) for the unwound material positioned no more than 600 mm from the centre of the axis (3), wherein the angle (Θ) of take off at the first contact point (4) for the unwind is always in the range 0±20°.

公开(公告)号：US20220009183A1

公开(公告)日：2022-01-13

申请号：US17293353

申请日：2019-11-08

Applicant: HEXCEL COMPOSITES LIMITED

Inventor： Marco ARCIDIACONO

IPC: B29C70/54 ,  B29C70/38

Abstract: A method of manufacture of a composite component is provided, the method comprising the steps of providing two layers of pre-preg composite material, one of which has an edge adjacent a surface of the other. Pressure and, optionally, vibrational energy is applied to the edge to thereby smooth the ply drop.

公开(公告)号：US11072127B2

公开(公告)日：2021-07-27

申请号：US16311934

申请日：2017-06-07

Applicant: HEXCEL COMPOSITES LIMITED

Inventor： Marco Arcidiacono ,  John Ellis ,  Benjamin Chau

IPC: B32B7/00 ,  B29C65/08 ,  B29C65/82 ,  B29C65/00 ,  B29C70/54

Abstract: Process for forming a permanent join between two sections of fibrous material contained in a thermosetting resin matrix, said process comprising overlaying the two sections and subjecting the overlaid sections to ultrasonic welding to form a permanent join between the two sections, wherein there is no significant change in the sub-ambient Tg of the fibrous material contained in the thermosetting resin matrix in the region of the permanent join.

公开(公告)号：US10119001B2

公开(公告)日：2018-11-06

申请号：US15229067

申请日：2016-08-04

Applicant: Hexcel Corporation ,  Hexcel Composites Limited

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

IPC: C08J5/24 ,  C08L77/02 ,  C08G59/50 ,  C08L63/00 ,  C08L81/06 ,  C08G59/32 ,  C08K5/18

Abstract: Uncured epoxy resin for use in making prepreg for aerospace applications. The resin includes an epoxy resin component comprising difunctional epoxy resin, trifunctional epoxy resin and/or tetrafunctional epoxy resin and a sufficient amount of [3-(4-aminobenzoyl) oxyphenyl]4-aminobenzoate (3-ABOAB), as a curing agent, such that the uncured resin can be stored at room temperature of at least 6 weeks and wherein the uncured resin can be fully cured in no more than 2 hours at a temperature of between 175° C. and 185° C.

公开(公告)号：US20170226274A1

公开(公告)日：2017-08-10

申请号：US15502511

申请日：2015-09-21

Applicant: Hexcel Composites Limited

Inventor： Chris Harrington

IPC: C08G59/40 ,  C08K5/103 ,  C08J5/10 ,  C08K5/09 ,  C08J5/24 ,  C08J5/04

CPC classification number: C08G59/4021 ,  C08G59/40 ,  C08J5/042 ,  C08J5/10 ,  C08J5/24 ,  C08J2363/00 ,  C08K5/09 ,  C08K5/103 ,  C08L63/00

Abstract: This invention relates to an epoxy resin formulation containing a curative that can be cured at 150° C. to 95% cure in no more than 150 seconds, and can be cured at 120° C. to 95% cure in no more than 4 minutes. This results in a cured resin having a Tg no greater than 140° C. wherein the formulation further contains a mould release agent.

公开(公告)号：US09707736B2

公开(公告)日：2017-07-18

申请号：US13809300

申请日：2011-07-19

Applicant: Mark Whiter

Inventor： Mark Whiter

IPC: B32B5/26 ,  B65H16/00 ,  B32B17/02 ,  B32B17/06 ,  B32B3/10 ,  B32B3/26 ,  B32B5/02 ,  B65G59/00 ,  B65H18/28 ,  B32B5/08

CPC classification number: B32B5/26 ,  B32B3/10 ,  B32B3/26 ,  B32B5/02 ,  B32B5/08 ,  B32B17/02 ,  B32B17/067 ,  B32B2250/20 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2262/02 ,  B32B2262/0269 ,  B32B2262/10 ,  B32B2262/101 ,  B32B2262/106 ,  B32B2262/14 ,  B32B2307/542 ,  B32B2307/546 ,  B32B2307/72 ,  B32B2307/724 ,  B32B2307/732 ,  B65G59/00 ,  B65H16/00 ,  B65H18/28 ,  Y10T428/23979 ,  Y10T428/24802 ,  Y10T428/249921 ,  Y10T428/249953 ,  Y10T428/249979 ,  Y10T428/27

Abstract: A curable sheet-like composite material comprising curable resin and at least one layer of structural fibers and comprising an outer backing layer of substantially resin-free material which is gas permeable but is substantially non-permeable with respect to the curable resin at room temperature.