公开(公告)号：US20190001531A1

公开(公告)日：2019-01-03

申请号：US16063984

申请日：2016-12-22

Applicant: Hexcel Composites SAS

Inventor： Esteban Villalon ,  Jimmy Grondin

IPC: B29B13/02 ,  B29B13/08 ,  C08J5/24

Abstract: Treating an uncured resin matrix composition to impart energy to the resin matrix composition enables a stable Tg to be achieved whereby the resin matrix composition may be stored and has a low tack enabling subsequent processing and handling. The invention provides a method of achieving a stable Tg without the resin matrix composition starting to cure and a method of determining the treatment regime by which a resin matrix composition with a stable Tg may be obtained. The resin matrix composition may be fresh or reused uncured resin matrix composition and may contain fibrous reinforcement.

公开(公告)号：US20170225411A1

公开(公告)日：2017-08-10

申请号：US15502515

申请日：2015-08-24

Applicant: Hexcel Composites SAS

Inventor： Denis Granger ,  Jeanne Clouteau

IPC: B29C70/54 ,  B29C70/50

Abstract: A method of separating a composite material stack comprising multiple elements (12) in contact with one another is discloses. Each element (12) comprises reinforcement fibers and an uncured resin matrix, and the method comprises the steps of temperature treating the stack and/or applying a stress to the stack to separate the elements.

公开(公告)号：US10913223B2

公开(公告)日：2021-02-09

申请号：US15776811

申请日：2016-11-24

Applicant: Hexcel Holding GMBH ,  Hexcel Composites SAS

Inventor： Esteban Villalon ,  Andreas Gabor

IPC: B29C70/08 ,  B29B17/00 ,  B29C70/54 ,  B29C70/46 ,  B29C70/14 ,  B29K105/08 ,  B29K63/00 ,  B29K105/26 ,  B29K307/04

Abstract: A reinforcing composite comprising a plurality of layers of reinforcing composite material forming a stack wherein at least one layer of the stack comprises a moulding compound (114) comprising consolidated resin impregnated fiber elements, wherein the resin impregnated fiber elements are obtained from off-cuts or scrap material (112) derived from cutting single layers of reinforcing composite material and/or stacks comprising multiple layers of reinforcing composite material (110).

公开(公告)号：US10800116B2

公开(公告)日：2020-10-13

申请号：US15502515

申请日：2015-08-24

Applicant: Hexcel Composites SAS

Inventor： Denis Granger ,  Jeanne Clouteau

IPC: B29C70/54 ,  B29C70/50 ,  B29B13/04 ,  B29C35/16

Abstract: A method of separating a composite material stack comprising multiple elements (12) in contact with one another is discloses. Each element (12) comprises reinforcement fibers and an uncured resin matrix, and the method comprises the steps of temperature treating the stack and/or applying a stress to the stack to separate the elements.

公开(公告)号：US20200270408A1

公开(公告)日：2020-08-27

申请号：US16063983

申请日：2016-12-22

Applicant: Hexcel Composites SAS

Inventor： Esteban Villalon ,  Jimmy Grondin

IPC: C08J5/24 ,  B29B11/16 ,  B29B13/08

Abstract: Treating an uncured resin to impart energy to the resin enables a stable Tg to be achieved whereby the resin may be stored and has a low tack enabling subsequent processing and handling. The invention provides a method of achieving a stable Tg without the resin starting to cure and a method of determining the treatment regime by which a resin with a stable Tg may be obtained. The resin may be fresh or reused uncured resin and may contain fibrous reinforcement.

公开(公告)号：US20180326678A1

公开(公告)日：2018-11-15

申请号：US15776811

申请日：2016-11-24

Applicant: Hexcel Holding GMBH ,  Hexcel Composites SAS

Inventor： Esteban Villalon ,  Andreas Gabor

IPC: B29C70/54 ,  B29C70/46 ,  B29B17/00 ,  B29C70/14

CPC classification number: B29C70/545 ,  B29B17/0026 ,  B29C70/081 ,  B29C70/14 ,  B29C70/46 ,  B29K2063/00 ,  B29K2105/0872 ,  B29K2105/0881 ,  B29K2105/26 ,  B29K2307/04 ,  Y02W30/62

Abstract: A reinforcing composite comprising a plurality of layers of reinforcing composite material forming a stack wherein at least one layer of the stack comprises a moulding compound (114) comprising consolidated resin impregnated fiber elements, wherein the resin impregnated fiber elements are obtained from off-cuts or scrap material (112) derived from cutting single layers of reinforcing composite material and/or stacks comprising multiple layers of reinforcing composite material (110).

公开(公告)号：US20170239894A1

公开(公告)日：2017-08-24

申请号：US15503784

申请日：2015-08-18

Applicant: Hexcel Composites SAS ,  Hexcel Composites Limited

Inventor： Denis Granger ,  Chris Harrington ,  Asher Ahmed ,  Joseph Gargiuli

IPC: B29C70/22 ,  B29C65/56 ,  F16B39/02 ,  B29C65/00 ,  F16B5/02 ,  B29C65/48 ,  B29C65/72

CPC classification number: B29C70/228 ,  B29C65/48 ,  B29C65/483 ,  B29C65/561 ,  B29C65/562 ,  B29C65/72 ,  B29C66/03 ,  B29C66/034 ,  B29C66/1122 ,  B29C66/71 ,  B29C66/721 ,  B29C66/7212 ,  B29C66/72141 ,  B29C66/72143 ,  B29C66/73111 ,  B29C66/73755 ,  B29C66/73756 ,  B29C66/7392 ,  B29C66/7394 ,  B29C66/91951 ,  B29C66/9534 ,  B29C66/9592 ,  B29C70/545 ,  B29L2031/30 ,  B29L2031/3076 ,  B29L2031/3085 ,  B29L2031/44 ,  F16B5/0241 ,  F16B39/021 ,  B29K2063/00 ,  B29K2307/04 ,  B29K2309/08 ,  B29K2277/10

Abstract: Mechanically attaching articles made from composites has problems due to the difference in properties of the composite in the x, y planar direction and the z perpendicular direction, this results in different properties between the composite and the attachment member such as differences in coefficients of thermal expansion which can weaken the joint further leading to differences in moisture uptake which can further reduce the strength and robustness of the joint. The invention relates to the selection of the position of a joint in order to reduce such problems and to operating the moulding process in a way that improves the provision of mechanical attachments such as bolt holes.