Patents Assigned to Hexcel Holding GmbH
  • Patent number: 11697254
    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).
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: July 11, 2023
    Assignees: Hexcel Composites Limited, Hexcel Corporation, Hexcel Holding GmbH
    Inventors: Johannes Moser, Yu-Chen Hung, Erin Reagan
  • Publication number: 20220212424
    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).
    Type: Application
    Filed: April 2, 2020
    Publication date: July 7, 2022
    Applicants: Hexcel Composites Limited, Hexcel Holding GMBH, Hexcel Corporation
    Inventors: Johannes MOSER, Yu-Chen HUNG, Erin REAGAN
  • Publication number: 20210283866
    Abstract: A mould for moulding materials, the mould comprising at least two corresponding mould elements (14, 16, 18, 20) moveable relative to one another towards and away from each other, the towards movement exerting pressure on a moulding material positioned within a cavity formed with the mould wherein upon the mould elements being in contact the mould cavity comprises a recess (120), the recess (120) being located beyond the edge of the moulding to allow escape of gas (12) during moulding.
    Type: Application
    Filed: November 23, 2017
    Publication date: September 16, 2021
    Applicant: Hexcel Holding GMBH
    Inventors: Johannes MOSER, Andreas GABOR
  • Patent number: 9868266
    Abstract: Prepregs comprising fibrous reinforcing material and a heat curable resin are provided with a backing sheet whose surface has been treated to increase the surface tension which enhances the bonding between the prepreg and the backing sheet, and reduces resin removal when the backing sheet is removed. The use of the treated backing sheet also provides improved tack between prepregs when assembled in a stack for molding after removal of the backing sheet.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: January 16, 2018
    Assignee: Hexcel Holding GMBH
    Inventor: Johannes Moser
  • Patent number: 9809689
    Abstract: A method of producing molded articles. The method uses a fibrous material and a first and second resin material. The first resin material is at least partially cured before being combined with the fibrous material and the second resin material. The molding material is inserted into a mold and processed to form a molded article by providing energy. The molded article is produced using less energy than would be necessary for processing a molding material which did not include a partially cured first resin material.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: November 7, 2017
    Assignee: Hexcel Holding GMBH
    Inventors: Johannes Moser, Uwe Karner, Pascal Perrillat-Collomb
  • Patent number: 9770844
    Abstract: A molding material comprising a fibrous reinforcement layer and a curable resin matrix. The fibrous reinforcement layer comprises a non-woven fabric comprising a single layer of unidirectional tows arranged at an angle greater than 0° in relation to the lengthwise direction of the fabric and a support structure for maintaining the arrangement of the tows.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: September 26, 2017
    Assignees: Hexcel Composites Limited, Hexcel Holding GMBH
    Inventors: Johannes Moser, Philip Hadley
  • Patent number: 9370905
    Abstract: A module (1) for holding at least one bushing (17) within a recess, wherein it comprises two side surfaces (2, 3), an upper (4) and a lower (5) surface and at least one end surface (6), wherein the upper (4) and lower (5) surfaces are of different width and arcs, respectively, in their cross-section, and the side surfaces (2, 3) are of equal height, and when coupled to a second module (8) by its side surfaces (3, 9), which second module (8) optionally may also hold at least one bushing (17), the sum of the angle (alpha) between the optionally imaginary plane side surface (12) of the one module (1) and the tangent (10) to its upper surface (4) at the intersection (A) with the side surface (3) and the angle (beta) between the optionally imaginary plane side surface (13) of the other module (8) and the tangent (11) to its upper surface (15) at the intersection (B) with the side surface (9) is at least 180 degrees and/or a plurality of modules (1), optionally when holding the bushings (17), form at least a sectio
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: June 21, 2016
    Assignees: Hexcel Holding GMBH, Hexcel Corporation
    Inventors: Flemming Moeller Larsen, Johannes Moser, Bruno Boursier
  • Publication number: 20160053060
    Abstract: A cured or partly cured fiber reinforced sheet material comprising reinforcement fibres and a reinforcement resin material, wherein the reinforcement resin material comprises an epoxy resin having an epoxy equivalent weight in the range of from 50 to 250, preferably from 100 to 200, and an amine hardener, the sheet material comprising a surface structure for spacing the sheet material from adjacent moulding materials.
    Type: Application
    Filed: November 20, 2013
    Publication date: February 25, 2016
    Applicants: HEXCEL COMPOSITES LIMITED, Hexcel Holding GMBH
    Inventors: Johannes Moser, Philip Hadley, Ben Tipler, Chris Harrington, Nicholas Verge
  • Patent number: 9132591
    Abstract: The present invention regards a fiber-reinforced composite molding with an outer (102) structure and an inner structure (106), wherein the outer structure (102) is formed from at least one layer of fibrous reinforcing material and a cured first resin material, and the inner structure (106) is formed from a plurality of layers of fibrous reinforcing material and a second cured resin material, wherein the viscosity of the uncured first resin material is lower than the viscosity of the uncured second resin material and wherein in the composite molding the two cured resin materials are at least partially mixed with each other. It also regards a process for the production of such a fiber-reinforced composite molding.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: September 15, 2015
    Assignee: Hexcel Holding GMBH
    Inventors: Yara Millaray Borja Adamse, Jean Claude Dumolard, Flemming Larsen, Manfred Schoeflinger
  • Patent number: 9096019
    Abstract: A scrim-reinforced prepreg assembly for use in building low-porosity lay-ups. The assembly includes a prepreg that is composed of a fibrous reinforcement and a heat-curable resin mixture, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure. The scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the heat-curable resin mixture.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: August 4, 2015
    Assignee: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzer
  • Publication number: 20150017853
    Abstract: A process for the preparation of a prepreg comprising superimposing layer of unidirectional fibrous reinforcement comprising a plurality of tows each comprising a plurality of parallel filaments onto a resin impregnated layer of unidirectional fibrous reinforcement comprising a plurality of tows each comprising a plurality of parallel filaments wherein the superimposed laminate of layers is compressed to the extent that the resin penetrates the interstices between the tows but penetrates the voids within the tows to less than 22 to 60% by volume of the tows.
    Type: Application
    Filed: January 25, 2013
    Publication date: January 15, 2015
    Applicant: Hexcel Holding GmbH
    Inventors: Pascal Perillat-Collomb, Uwe Karner, Ronald Pols, Johannes Moser
  • Publication number: 20130231018
    Abstract: A scrim-reinforced prepreg assembly for use in building low-porosity lay-ups. The assembly includes a prepreg that is composed of a fibrous reinforcement and a heat-curable resin mixture, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure. The scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the heat-curable resin mixture.
    Type: Application
    Filed: April 17, 2013
    Publication date: September 5, 2013
    Applicant: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzer
  • Patent number: 8435370
    Abstract: The invention concerns a process for making a scrim-reinforced prepreg for use in building low-porosity lay-ups, characterized in that a conventional prepreg is formed of a fibrous reinforcement and a heat-curable resin, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure, so that the scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the prepreg-resin.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: May 7, 2013
    Assignee: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzen
  • Publication number: 20100170620
    Abstract: The invention concerns a process for making a scrim-reinforced prepreg for use in building low-porosity lay-ups, characterized in that a conventional prepreg is formed of a fibrous reinforcement and a heat-curable resin, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure, so that the scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the prepreg-resin.
    Type: Application
    Filed: March 16, 2010
    Publication date: July 8, 2010
    Applicant: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzer
  • Patent number: 7709404
    Abstract: The invention concerns a process for making a scrim-reinforced prepreg for use in building low-porosity lay-ups, characterized in that a conventional prepreg is formed of a fibrous reinforcement and a heat-curable resin, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure, so that the scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the prepreg-resin.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: May 4, 2010
    Assignee: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzer