| Hexcel Composites Limited Patent applications |
| Patent application number | Title | Published |
|---|
| 20150344649 | FIRE RETARDANT EPOXY RESIN FORMULATIONS AND THEIR USE - Epoxy formulations comprising a polyfunctional epoxy resin, a phenoxy resin, a fire retardant, a toughener and a curative are provided as is their use in prepregs which are useful in the production of aircraft components particularly interior and external panels and sleeves for helicopter rotor blades. | 12-03-2015 |
| 20150179298 | COMPOSITE MATERIALS - A prepreg comprising a fibre reinforced curable resin, the prepreg containing electrically conductive particles in the range of from 0.5 to 10% by weight based on the resin, the electrically conductive particles comprising potato shaped graphite. | 06-25-2015 |
| 20140335361 | FIBRE REINFORCED MATERIALS - A process for the production of a fibre reinforced thermoset resin. The process comprises impregnating a structural fibrous layer with a liquid thermosetting resin composition to form a prepreg, and subsequently curing the thermosetting resin, wherein at the time of impregnation an additional resin component is provided separately to the prepreg, the thermosetting resin composition being free of said additional resin component other than the thermosetting resin, and additional resins are provided to become integrated with the thermosetting resin during curing. | 11-13-2014 |
| 20140316551 | METHOD FOR ON-LINE CONTROL OF A MANUFACTURING PROCESS FOR A MULTICOMPONENT SHEET MATERIAL - A method of controlling a process for the manufacture of a multicomponent sheet material having a desired pre-determined parameter comprising applying an acoustic or an electromagnetic signal to interact with the sheet material whereby the interaction modifies the applied signal, detecting the modified signal, comparing the modified signal or data derived from it with data relating to the pre-determined parameter and modifying at least one step of the process whereby the data relating to the modified signal is modified towards the data relating to the pre-determined parameter. | 10-23-2014 |
| 20140287638 | COMPOSITE MATERIALS - A structure or laminate comprising a fibrous reinforcement material and a reinforcement resin material are described, wherein the structure or laminate further comprises a tack material, the tack material increasing the surface tack of the structure or laminate over a tack temperature range of from −10° C. to 50° C. in comparison to the original surface tack of the structure or laminate in the absence of the tack material over the same tack temperature range. | 09-25-2014 |
| 20140217332 | COMPOSITE MATERIALS - A prepreg comprising a fibre reinforced curable resin, the curable resin being composed of 25 to 35 weight percent tetrafunctional epoxy resin based on the total weight of the curable resin; 18 to 28 weight percent difunctional epoxy resin; 4 to 18 weight percent polyether sulfone; 2 to 10 weight percent polyamide 12 particles; 2 to 10 weight percent polyamide 11 particles; 1 to 8 weight percent potato shaped graphite particles; and 17.4 to 27.4 weight percent of a curing agent for said curable resin. | 08-07-2014 |
| 20140110877 | THERMOPLASTIC TOUGHENING MATERIAL AND RELATED METHOD - A non-fibrous, apertured membrane comprises at least one thermoplastic polymeric material and has a discrete porous structure. The membrane is soluble in the thermoset matrix polymer of a composite material. | 04-24-2014 |
| 20130330514 | COMPOSITE MATERIALS - A composite material, the composite material comprising at least one prepreg, said prepreg comprising at least one polymeric resin and at least one fibrous reinforcement; and glassy carbon particles dispersed in the polymeric resin. | 12-12-2013 |
| 20130260022 | COMPOSITE MATERIAL FOR STRUCTURAL APPLICATIONS - Composite material that contain epoxy resin which is toughened and strengthened with thermoplastic materials and a blend of insoluble particles. The uncured matrix resins include an epoxy resin component, a soluble thermoplastic component, a curing agent and an insoluble particulate component composed of elastic particles and rigid particles. The uncured resin matrix is combined with a fibrous reinforcement and cured/molded to form composite materials that may be used for structural applications, such as primary structures in aircraft. | 10-03-2013 |
| 20130217803 | NOVEL RESIN CURING AGENTS - A curable resin comprising a curing agent, wherein the curing agent comprises an adjustable structural unit having a stable chain-like arrangement which is adjustable to a stable ring-like arrangement, wherein the ring-like arrangement comprises the constituents of the chain-like arrangement with two terminal constituents exhibiting an attractive chemical interaction, and is adjustable back from the ring-like arrangement to the chain-like arrangement by separation of the two terminal constituents. | 08-22-2013 |
| 20130122277 | COMPOSITE MATERIALS - A strip of curable prepreg comprising unidirectional fibres aligned with the length of the strip, the fibres being at least partially impregnated with curable thermosetting resin and comprising a flexible polymeric sheet on an outer face of the strip, wherein the strip has a substantially rectangular cross-section defining a width and a thickness of the strip. | 05-16-2013 |
| 20130102756 | NOVEL CURING AGENTS - A curable resin comprising a compound having the structure (I): wherein each carbon 2, together with either its carbon 1 or carbon 3, arc members of a fused cycloaliphatic ring, and when carbon 1 is a member of the ring so is N, and wherein each of the aliphatic or aromatic ring-member carbons may either be members of further fused cycloaliphatic rings or be bonded to a group selected from H or linear or branched C | 04-25-2013 |
| 20130090414 | COMPOSITE MATERIALS - A process for the manufacture of a cured composite material, the process comprising the steps of blending together a liquid curable resin and a curing agent having a melting point greater than 100° C. to form a liquid blend of curable resin and curing agent, at least partially impregnating a structural fibre arrangement with the blended curable resin and curing agent to form a curable composite material, followed by curing the composite material by exposure to elevated temperature and at a pressure of no greater than 3 bar absolute to form a cured composite material. | 04-11-2013 |
| 20130071626 | COMPOSITE MATERIALS - A prepreg comprising a single structural layer of electrically conductive unidirectional fibers and a first outer layer of curable resin substantially free of structural fibers, and optionally a second outer layer of curable resin substantially free of structural fibers, the sum of the thicknesses of the first and second outer resin layers at a given point having an average of at least 10 micrometers and varying over at least the range of from 50% to 120% of the average value, and wherein the first outer layer comprises electrically conductive particles. | 03-21-2013 |
| 20130065471 | STRUCTURED THERMOPLASTIC IN COMPOSITE INTERLEAVES - One or more layers of structured thermoplastic polymer ( | 03-14-2013 |
| 20130065068 | Composite Tape For Use In Tape Laying Machines - A tape for use in automated tape laying machines that includes a multi-layer substrate composed of a plastic layer that includes at least one plastic film having an outer film surface and an inner film surface. The plastic film is adhered to a fibrous layer so that the inner surface of the fibrous layer is bonded to the inner film surface. An uncured composite material layer composed of a fibrous reinforcement and an uncured resin matrix is releasably adhered to either the plastic layer surface or the outer fiber layer surface to provide a tape suitable for use in an automatic tape layer. | 03-14-2013 |
| 20130011653 | COMPOSITE MATERIALS - A curable sheet-like composite material comprising curable resin and at least one layer of structural fibres, and comprising an outer backing layer having a shear-dependent rheology, whereby the backing layer exhibits essentially no flow at rest on the outer surface of the composite material and exhibits a viscous flow response to induced shear. | 01-10-2013 |
| 20130005205 | PROCESS FOR MANUFACTURING COMPOSITE MATERIALS - The invention relates to a prepreg comprising a structural layer of conductive fibres comprising thermosetting resin in the interstices, and a first outer layer of resin comprising thermosetting resin, and comprising a population of conductive free filaments located at the interface between the structural layer and the outer resin layer which, when cured under elevated temperature, produces a cured composite material comprising a cured structural layer of packed conductive fibres and a first outer layer of cured resin, the outer layer of cured resin, comprising a proportion of the population of conductive free filaments dispersed therein, and to a process for manufacturing prepregs wherein the electrically conductive fibres pass a fibre disrupting means to cause a proportion of the fibres on an external face of the sheet to become free filaments. | 01-03-2013 |
| 20120316262 | NOVEL CURING AGENTS - The invention relates to a resin curing agent having the formula (I), wherein R | 12-13-2012 |
| 20120296009 | SYNTACTIC FOAM - A one-component syntactic paste comprising epoxy resin, hollow particles and a hydrazide curing agent. | 11-22-2012 |
| 20120219775 | ELECTROMAGNETIC HAZARD PROTECTOR FOR COMPOSITE MATERIALS - A curable flexible electromagnetic hazard resistance laminate, comprising a layer of electrically conductive metal material and thermosetting resin, wherein an external face of the laminate comprises a releasable backing sheet in contact with resin, and the laminate further comprises a substantially non-reshapable sheet of solid material. | 08-30-2012 |
| 20120219745 | ELECTROMAGNETIC HAZARD PROTECTOR FOR COMPOSITE MATERIALS - A curable flexible electromagnetic hazard resistance laminate, comprising a layer of electrically conductive metal material and thermosetting resin, wherein a first external face of the laminate comprises a releasable backing sheet in contact with resin, and a second external face of the laminate comprises resin, wherein the second external face has greater adhesiveness than the first external face with the backing sheet removed. | 08-30-2012 |
| 20120100335 | COMPOSITE MATERIALS - A prepreg comprising a structural layer of packed unidirectional conductive fibres comprising thermosetting resin in the interstices, and a first outer layer of resin comprising thermosetting resin, and being essentially free of unidirectional conductive fibres, which when cured under elevated temperature, produces a cured composite material comprising a cured structural layer of packed unidirectional conductive fibres and a first outer layer of cured resin comprising unidirectional conductive fibres dispersed within. | 04-26-2012 |
| 20110262630 | Composite Materials With Improved Performance - A composite material comprising at least one polymeric resin and optionally at least one fibrous reinforcement where the polymeric resin comprises at least one difunctional epoxy resin and at least one epoxy resin with a functionality greater than two having at least one meta-substituted phenyl ring in its backbone. | 10-27-2011 |
| 20110067812 | CURE ACCELERATORS - An epoxy resin composition comprising an epoxy resin component combined with a sufficient amount of an imidazole curative to provide curing of the epoxy resin composition. The epoxy resin composition further includes a non-hydroxyl containing cure accelerator for the imidazole curative. | 03-24-2011 |
| 20100276645 | IMPROVED STRUCTURAL ADHESIVE MATERIALS - An adhesive material comprising at least one adhesive polymeric resin, at least one low aspect ratio metal-coated additive, and at least one high aspect ratio metal-coated additive. There is additionally provided an adhesive material comprising at least one adhesive polymeric resin, and one of either; a) low aspect ratio metal-coated additives present in the range 0.2 wt. % to 30 wt. % of the adhesive material; or b) discrete high aspect ratio metal-coated additives present in the range 0.2 wt. % to 25 wt. % of the adhesive material. | 11-04-2010 |
| 20100228001 | Thermoplastic Toughening Material And Related Method - A non-fibrous, apertured membrane comprises at least one thermoplastic polymeric material and has a discrete porous structure. The membrane is soluble in the thermoset matrix polymer of a composite material. | 09-09-2010 |
| 20100219612 | FIBER REINFORCED RESIN ASSEMBLY - An uncured fiber reinforced assembly that includes a reinforcement layer containing a fibrous material and at least one highly reactive curing agent. A matrix film layer is applied to the reinforcement layer so that it does not substantially impregnate the reinforcement layer. The matrix film layer includes at least one uncured epoxy resin and at least one latent epoxy curing agent. The assembly is designed for use in making snowboards and skis. | 09-02-2010 |
| 20100151214 | COMPOSITE MATERIAL - A composite material ( | 06-17-2010 |
| 20100108259 | Low Temperature Curing Of Toughened Adhesives - Surfaces are bonded together using a thermoplastic toughened epoxy adhesive wherein the adhesive contains an epoxy component, a thermoplastic component, a core/shell particle component and a curing agent. The thermoplastic toughened epoxy adhesive is only heated during bonding to a relatively low curing temperature of between 140° C. and 160° C. for a sufficient time to cure the adhesive and provide surfaces that are bonded together with a high-strength bond. | 05-06-2010 |
| 20100086737 | SURFACE FINISH FOR COMPOSITE MATERIALS - The surface finish of composite materials is improved by reducing the amount of “print-through” that occurs as the surface ages. A resin matrix, which is modified with rubber particles, is used in combination with a surface finish film to provide extremely flat and durable surface finishes. | 04-08-2010 |
| 20100068497 | ADHESION PROMOTING LAYER FOR COMPOSITE ASSEMBLIES - The adhesion between an underlying composite material and its surface finish is increased by including an adhesion promoting layer at the interface where the uncured composite material and the surface finish meet during the lay up of the uncured composite assembly. The adhesion promoting layer includes a cure accelerating agent for the composite material matrix resin. | 03-18-2010 |
| 20090317609 | CURABLE RESIN FILMS - A curable resin with at least one electrically conductive metal region on its surface formed by depositing on the surface a composition comprising activator, contacting the activator with a solution of a reducing agent and a solution of a metal ion, the reducing agent and metal ion undergoing chemical reaction activated by the activator to form an electrically conductive metal region on the surface, and method of forming is provided. | 12-24-2009 |
| 20090252916 | COMPOSITE MATERIAL ASSEMBLY - A composite material assembly ( | 10-08-2009 |
| 20090202809 | Fibre reinforced assembly - An uncured assembly which comprises a fibrous reinforcement. Associated with said reinforcement is a resin material comprising at least one solid amine-terminated epoxy resin, at least one solid epoxy-terminated epoxy resin and optionally at least one cure catalyst. | 08-13-2009 |
