公开(公告)号：US20200255254A1

公开(公告)日：2020-08-13

申请号：US16756074

申请日：2018-10-18

Applicant: HEXCEL COMPOSITES LIMITED ,  HEXCEL CORPORATION

Inventor： John ELLIS ,  Anthony LOCCISANO

IPC: B65H49/26 ,  B65H57/18

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：US20190202145A1

公开(公告)日：2019-07-04

申请号：US16314212

申请日：2017-07-06

Applicant: HEXCEL COMPOSITES LIMITED

Inventor： Steve MORTIMER ,  Neal PATEL ,  Scott STEVENS

IPC: B29C70/48 ,  B29C31/06 ,  B29C31/10 ,  B29B7/72 ,  B29B7/76 ,  B29B7/74 ,  C08G59/50

CPC classification number: B29C70/48 ,  B29B7/005 ,  B29B7/007 ,  B29B7/726 ,  B29B7/7471 ,  B29B7/76 ,  B29B7/7615 ,  B29B7/90 ,  B29C31/06 ,  B29C31/10 ,  B29K2063/00 ,  C08G59/50 ,  C08J5/04 ,  C08J5/10 ,  G05D11/136 ,  G05D11/138

Abstract: The invention relates to a resin infusion process wherein a curable flowing fluid resin composition is supplied to form a curable matrix around a fibrous reinforcement material, wherein the curable flowing fluid resin composition comprises a resin component (1) and an activator component (2), and at least one property of the curable flowing fluid resin composition is monitored prior to supply.

公开(公告)号：US20190061290A1

公开(公告)日：2019-02-28

申请号：US15735263

申请日：2016-07-20

Applicant: Hexcel Composites Limited

Inventor： Mark Whiter ,  Michael Rhodes

IPC: B29C70/54 ,  B29C70/08 ,  B29C70/42

Abstract: An improved surface finish on articles moulded from prepregs is obtained by providing a surface finishing film on the surface of the prepreg and a surface venting layer on the surface of the surface finishing film in which the finishing film comprises a flowable tacky resin and the venting layer contains perforations which allow passage of the resin through the venting layer to provide removable adhesion between the surface of the mould and the moulding composition during moulding.

公开(公告)号：US20180339471A1

公开(公告)日：2018-11-29

申请号：US15985738

申请日：2018-05-22

Applicant: Hexcel Composites Limited

Inventor： John Ellis

IPC: B29C70/54 ,  B65H35/02

Abstract: The present invention relates to an apparatus for slitting a web into a plurality of narrower segments comprising a feed for the web, a slitting system and one or more drivers for driving the web through the slitting system. The drivers contact the web on one side with its contact surface, and its contact surface has a surface roughness Ra in the range of from 20 to 0.2 micrometres, preferably from 20 to 3 micrometres.

公开(公告)号：US10118365B2

公开(公告)日：2018-11-06

申请号：US15615396

申请日：2017-06-06

Applicant: Hexcel Composites Limited

Inventor： Mark Whiter

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

Abstract: A curable sheet-like composite material comprising a layer of curable resin and at least one layer of structural fibres 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.

公开(公告)号：US09932503B2

公开(公告)日：2018-04-03

申请号：US15315918

申请日：2015-06-30

Applicant: Hexcel Composites Limited

Inventor： Chris Harrington ,  Vaida Burton

IPC: C09J163/00 ,  C09J109/02 ,  C09J5/06 ,  C09J11/04 ,  C09J11/06 ,  C09J121/00 ,  C09J163/02 ,  C09J11/08 ,  C09J131/04 ,  C09J163/04 ,  C08G59/50 ,  C08G59/02 ,  C08G59/18 ,  C08G59/20 ,  C08G59/32 ,  C08G59/56 ,  C08G59/68 ,  C08J5/24 ,  C08K3/26 ,  C08K3/32 ,  C08L63/00 ,  B32B15/092 ,  B32B27/00 ,  B32B27/38 ,  B32B7/12 ,  C08G59/42

CPC classification number: C09J163/00 ,  C08G59/182 ,  C08G59/20 ,  C08G59/3227 ,  C08G59/4253 ,  C08G59/50 ,  C08G59/68 ,  C08G59/686 ,  C08J5/24 ,  C08J2363/00 ,  C09J5/06

Abstract: An adhesive composition comprising an aromatic epoxy resin, an epoxy resin rubber adduct, an amine curing agent; and optionally one or more of an oil absorbent, a corrosion inhibitor and a urone accelerator, wherein the adhesive composition is curable at 150° C. in no more than 210 seconds.

公开(公告)号：US09695312B2

公开(公告)日：2017-07-04

申请号：US14422721

申请日：2013-09-25

Applicant: Hexcel Composites Limited

Inventor： Stephen Mortimer ,  Scott Stevens

IPC: C08L63/00 ,  C08L33/04 ,  C08G59/20 ,  C08G59/24 ,  C08G59/50 ,  C08G59/40 ,  C08J5/24 ,  C08L67/00 ,  C08L79/04 ,  C08L79/08

CPC classification number: C08L63/00 ,  C08G59/245 ,  C08G59/5033 ,  C08G59/504 ,  C08J5/24 ,  C08L33/04 ,  C08L67/00 ,  C08L79/04 ,  C08L79/08 ,  C08L2205/025 ,  C08L2205/03 ,  C08L51/04

Abstract: A resin composition for producing a composite part, comprising a first resin component comprising a glycidyl ether epoxy resin, a second resin component comprising a naphthalene based epoxy resin, and an amino-phenyl fluorene curative; wherein the epoxy resin components a) and b) contain up to 33 wt % of the second resin component.

公开(公告)号：US20170107409A1

公开(公告)日：2017-04-20

申请号：US15315918

申请日：2015-06-30

Applicant: Hexcel Composites Limited

Inventor： Chris Harrington ,  Vaida Burton

IPC: C09J163/00 ,  C08G59/50 ,  C09J5/06 ,  C08G59/32 ,  C08G59/18 ,  C08J5/24

CPC classification number: C09J163/00 ,  C08G59/182 ,  C08G59/20 ,  C08G59/3227 ,  C08G59/4253 ,  C08G59/50 ,  C08G59/68 ,  C08G59/686 ,  C08J5/24 ,  C08J2363/00 ,  C09J5/06

Abstract: An adhesive composition comprising an aromatic epoxy resin, an epoxy resin rubber adduct, an amine curing agent; and optionally one or more of an oil absorbent, a corrosion inhibitor and a urone accelerator, wherein the adhesive composition is curable at 150° C. in no more than 210 seconds.

公开(公告)号：US20160376399A1

公开(公告)日：2016-12-29

申请号：US14903303

申请日：2014-07-28

Applicant: HEXCEL COMPOSITES LIMITED

Inventor： Philip Hadley ,  Mark Whiter ,  Chris Harrington

IPC: C08G59/56 ,  C08J5/04 ,  F03D1/06 ,  B32B27/38 ,  B29C70/44 ,  C08J5/24 ,  B32B5/26

CPC classification number: C08G59/56 ,  B29C70/28 ,  B29C70/44 ,  B29K2063/00 ,  B29K2105/0881 ,  B29L2031/085 ,  B32B5/26 ,  B32B27/38 ,  B32B2262/101 ,  B32B2262/106 ,  C08J5/04 ,  C08J5/24 ,  C08J2363/00 ,  C08K5/0025 ,  F03D1/0675 ,  F05B2280/6003 ,  F05B2280/6015 ,  Y02E10/721 ,  Y02P70/523

Abstract: (57) Abstract: The present invention concerns a process for the production of wind turbine structures. In the process, a stack of prepregs is located inside a vacuum bag. Each of the prepregs comprises a mixture of fibrous reinforcement and from 20% to 85 wt % of an epoxy resin of EEW 150 to 1500 and containing from 0.5 to 10 wt % of a curing agent. The curing agent comprises a urea curing agent and an imidazole curing agent, and is free of dicyandiamide. The epoxy resin is cured by application of an externally applied temperature in the range 70° C. to 110° C. for a period of from 4 to 8 hours.

Abstract translation: （57）摘要：本发明涉及一种用于生产风力涡轮机结构的方法。 在该过程中，一叠预浸料坯位于真空袋内。 每个预浸料包括纤维增强剂的混合物和20重量％至85重量％的EEW 150至1500的环氧树脂和含有0.5至10重量％的固化剂的混合物。 固化剂包括脲固化剂和咪唑固化剂，不含双氰胺。 环氧树脂通过外部施加的温度在70℃至110℃的范围内固化4至8小时。

公开(公告)号：US20160362528A1

公开(公告)日：2016-12-15

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

CPC classification number: C08J5/24 ,  C08G59/32 ,  C08G59/5033 ,  C08J2363/00 ,  C08J2477/00 ,  C08J2481/06 ,  C08K5/18 ,  C08L63/00 ,  C08L77/02 ,  C08L81/06

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.

Abstract translation: 未固化环氧树脂，用于制造航空航天应用的预浸料。 该树脂包括环氧树脂组分，其包含双官能环氧树脂，三官能环氧树脂和/或四官能环氧树脂和足量的[3-（4-氨基苯甲酰基）氧苯基] 4-氨基苯甲酸酯（3-ABOAB）作为固化剂， 使得未固化的树脂可以在至少6周的室温下储存，并且其中未固化的树脂可以在175℃至185℃的温度下在不超过2小时内完全固化。