Patent application number | Description | Published |
20080241296 | Durable tool for molding of polymer composites - Mold tooling formed of suitable iron-nickel alloys and provided with a hard electroless nickel coating on the mold cavity surface are useful for high volume production of carbon fiber reinforced, polymer matrix, composites. The iron and nickel alloy provides thermal expansion properties for the molding of dimensionally accurate parts. The nickel alloy coating provides a durable surface, without adversely affecting the expansion properties of the mold, and remains adherent to the base metal during the repeated thermal cycling encountered in high volume production of substantially identical molded carbon composite parts. | 10-02-2008 |
20090214874 | ENHANCED COATING OR LAYER - One exemplary embodiment may include a coating composition including an additive to prevent or hinder at least one of the coating or an underlying substrate from destabilization upon exposure to electromagnetic radiation. | 08-27-2009 |
20090304935 | METHOD FOR REDUCING CURE SHRINKAGE OF A THERMOSET RESIN - A method for reducing cure shrinkage of a thermoset resin includes forming a plurality of surface modified nanofibers. The surface modified nanofibers are formed by soaking nanofibers in an oxidizing acidic solvent. An oxidizing agent is added to the soaking nanofibers, thereby generating heat sufficient for at least one of in-situ oxidation and in-situ exfoliation of a subsurface of each of the nanofibers. Excess oxidizing agent and acidic solvent are removed from the nanofibers, which are then dried. The dried nanofibers have reduced surface hydrophobicity. The surface modified nanofibers are substantially uniformly dispersed into the thermoset resin. The surface modified nanofibers are adapted to reduce cure shrinkage of the thermoset resin during subsequent curing processes. | 12-10-2009 |
20100136316 | LAMINATED COMPOSITES AND METHODS OF MAKING THE SAME - The instant disclosure relates to a laminated composite and methods of making the same. The laminated composite includes a plurality of stacked prepregs having an interface formed between each pair of adjacent prepregs. Each prepreg includes a matrix material and reinforcing fibers dispersed therein. At least one fibrous veil is laminated to at least a portion of at least one of the interfaces, the at least one fibrous veil having graphite nano-platelets attached to at least one surface thereof. | 06-03-2010 |
20100136866 | LAMINATED COMPOSITES AND METHODS OF MAKING THE SAME - The instant disclosure relates to a laminated composite and methods of making the same. The laminated composite includes a plurality of stacked prepregs having an interface formed between each pair of adjacent prepregs. Each prepreg includes a matrix material and reinforcing fibers dispersed therein. The laminated composite also includes at least one fibrous veil laminated to at least a portion of at least one of the interfaces, the at least one fibrous veil having nanofibers attached to at least one surface thereof. Also disclosed herein are a fibrous veil and a method of making the nanofiber-doped fibrous veil. | 06-03-2010 |
20100276434 | STORAGE VESSEL AND METHOD OF FORMING - A storage vessel, such as vessels used in storing high pressure gas is provided. The storage vessel includes a liner having a center portion and a first and second end dome. A first composite layer is disposed circumferentially about the center portion. A second composite layer is disposed about said first composite layer and the first and second end dome. In some embodiments, the second composite layer is formed from a knitted or braided sleeve that is tightened over the liner and first composite layer by pulling the sleeve. | 11-04-2010 |
20110062628 | METHOD FOR MOLDING COSMETIC COMPOSITE PANELS WITH VISIBLE CARBON FIBER WEAVES - One embodiment of the invention provides a method for compression molding cosmetic panels with visible carbon fiber weaves using clear or lightly filled resins. The method uses a modified, two-step compression molding process to reflow the surface of a partially cured preform of carbon fiber weave and epoxy resin. | 03-17-2011 |
20110244744 | LAMINATED COMPOSITES AND METHODS OF MAKING THE SAME - The present disclosure relates to a fibrous veil and methods of making the same. The fibrous veil includes a base having a plurality of fibers, each of the plurality of fibers having an average diameter ranging from about 7,000 nm to about 9,000 nm. Graphite nano-platelets are attached to at least some of the plurality of fibers without a polymeric binder. | 10-06-2011 |
20120000916 | COMPOSITE PRESSURE VESSEL AND METHOD OF ASSEMBLING THE SAME - A composite pressure vessel assembly method includes fitting an end portion of a tubular member into an annular slot formed in an end cap. Sealant may be in the annular slot. The end cap includes an annular groove in an exterior surface of the end cap body portion. A first material layer is formed on an exterior surface of the tubular member. The first material layer includes a first composite material including fibers oriented circumferentially to the tubular member. A second material layer is formed on the first material layer with a portion of the second material layer being disposed into the annular groove, and includes a second composite material including fibers oriented axially to the tubular member. A third material layer is formed adjacent the second material layer and in the annular groove, and includes a third composite material including fibers having an orientation circumferential to the tubular member. | 01-05-2012 |
20120213997 | FIBER TOW TREATMENT APPARATUS AND SYSTEM - In one embodiment, a fiber treatment system includes a rotatable nubbed roller including an axis of rotation, a surface, and a number of spaced apart nubs projecting away from the surface, the number of spaced apart nubs imparting a number of spaced apart openings in a fiber tow. In another embodiment, the fiber treatment system further includes an optionally rotatable spreader roller for flattening the fiber tow. In yet another embodiment, the loosened, but still continuous fiber tow is chopped by a downstream chopper to form short fibers with reduced tow sizes. | 08-23-2012 |
20120247666 | METHOD OF FORMING AN ADHESIVE BOND - A method of forming an adhesive bond between a first substrate and a second substrate includes applying a semi-crystalline polymeric adhesive composition to a bonding area of the first substrate, and, after applying, disposing the second substrate adjacent to and in contact with the composition to form a workpiece. After disposing, the method includes heating the workpiece to cure the composition and thereby form a thermoset polymeric adhesive material that is crosslinked. After heating, the method includes cooling the workpiece such that the material has a crystalline molecular structure. Concurrent to cooling, the method includes imposing a stress on the material to thereby orient the crystalline molecular structure in a desired direction, and, after imposing, dissipating the stress along the crystalline molecular structure in the desired direction to thereby form the adhesive bond between the first substrate and the second substrate. | 10-04-2012 |
20130108824 | ONE-PIECE FIBER REINFORCEMENT FOR A REINFORCED POLYMER COMBINING ALIGNED AND RANDOM FIBER LAYERS | 05-02-2013 |
20130221692 | BUMPER RETENTION SYSTEM - A system for controlling displacement of a vulnerable component in connection with an impact event at the system. The system includes a frame structure, the vulnerable component, and a composite crush member (a) connected to the frame structure and the vulnerable component, forming a first close connection between the composite crush member and the vulnerable component and a second close connection between the composite crush member and the frame structure, (b) comprises primarily a polymer composite and is configured, and (c) is arranged in the system to fail in a predetermined manner in response to the impact event. The system also includes a retention feature configured and connected, directly or indirectly, to the vulnerable component and to the frame structure to, in operation of the system, maintain at least one of the first close connection and the second close connection during and following the composite crush member the impact event. | 08-29-2013 |
20130309436 | Method And Apparatus To Mitigate The Bond-Line Read-Out Defect In Adhesive-Bonded Composite Panels - A method and apparatus to mitigate the severity of the bond-line read-out defect, and more specifically microwave heating to locally cure adhesive bond-line in a single or two stage process comprising heating thermoset adhesive with microwave radiation until the adhesive is fully cured or partially cured. If the adhesive is partially cured, it can be fully cured by being subjected to an additional thermal cycle. | 11-21-2013 |
20140238597 | COMPOSITE PRESSURE VESSEL AND METHOD OF ASSEMBLING THE SAME - A method for assembling a composite pressure vessel includes disposing a sealant into each of a plurality of annular slots defined in an exterior surface of a body portion of an end cap. The end cap is aligned with an end portion of a tubular member such that the exterior surface of the body portion of the end cap abuts an interior surface of the tubular member. A force is applied to the tubular member having the end cap aligned with the end portion of the tubular member. The force is applied while rotating the tubular member. The force deforms the tubular member such that the end portion conforms to the plurality of annular slots defined in the body portion of the end cap. | 08-28-2014 |
20150053328 | SYSTEMS AND METHODS FOR JOINING POLYMERIC COMPOSITES USING CONDUCTIVE INK AND A CONDUCTIVE RIVET - A process, for joining workpieces using hybrid mechanical connector-resistance welding. The process in some embodiments includes introducing a conductive fluid to an interface between the workpieces. The process also includes inserting at least one mechanical conductive connector into at least one of the workpieces so that the connector reaches the interface having the conductive fluid therein. The process in some embodiments includes further applying energy for welding to the at least one mechanical conductive connector so that the energy passes, through the connector, to the conductive fluid and heat is generated in the workpieces at the interface, thereby melting the workpieces and forming a weld joint connecting the workpieces. | 02-26-2015 |