Cytec Industries Inc. Patent applications |
Patent application number | Title | Published |
20160121591 | BONDING OF COMPOSITE MATERIALS - A method for surface preparation of composite substrates prior to adhesive bonding. A curable surface treatment layer is applied onto a curable, resin-based composite substrate, followed by co-curing. After co-curing, the composite substrate is fully cured but the surface treatment layer remains partially cured. The surface treatment layer may be a resin film or a removal peel ply composed of resin-impregnated fabric. After surface preparation, the composite substrate is provided with a chemically-active, bondable surface that can be adhesively bonded to another composite substrate to form a covalently-bonded structure. | 05-05-2016 |
20160115139 | PROCESS FOR MAKING BENZOXAZINES - A synthesis process for making a benzoxazine compound containing at least one benzoxazine unit from aromatic amine containing at least one primary amino group, at least one phenolic compound with at least one ortho-hydrogen, and alkyl formcel. In one embodiment, the aromatic amine is reacted with alkyl formcel to generate an alkoxymethyl intermediate compound. Subsequently, the intermediate compound is reacted with a phenol to generate the benzoxazine compound. In another embodiment, the benzoxazine compound is formed by reacting aromatic amine with alkyl formcel and phenol in one reaction step. Also disclosed is a method for isolating the alkoxymethyl compound formed by reacting aromatic amine with alkyl formcel. The isolated alkoxymethyl compound is useful as a reactant in a subsequent reaction. | 04-28-2016 |
20160108253 | DEGRADATION-RESISTANT SCALE INHIBITORS - Methods for reducing aluminosilicate containing scale in an alumina recovery process involving treating an alumina recovery process equipment surface with a degradation-resistant scale inhibiting composition having high ionic strength prior to exposure to an alumina recovery process stream. | 04-21-2016 |
20160082691 | COMPOSITE MATERIALS WITH HIGH Z-DIRECTION ELECTRICAL CONDUCTIVITY - A curable composite material having high z-direction electrical conductivity. The curable composite material includes two or more layers of reinforcement carbon fibers that have been infused or impregnated with a curable matrix resin and an interlaminar region containing at least conductive nano-sized particles, e.g. carbon nanotubes, and a light-weight carbon veil. According to another embodiment, the interlaminar region further contains polymeric toughening particles. Methods for fabricating composite materials and structures are also disclosed. | 03-24-2016 |
20160047073 | Hybrid Woven Textile For Composite Reinforcement - A hybrid, woven textile material that can be used in the manufacturing of fiber-reinforced composite materials. The hybrid textile material is a woven fabric composed of unidirectional fibers interlaced with strips of non-woven fibers in a weaving pattern. In an embodiment, the hybrid textile material is porous or permeable with respect to liquid resins used in Resin Transfer Molding (RTM) processes and a preform formed from this textile material can be infused with liquid resins during such RTM processes. | 02-18-2016 |
20150375461 | DRY FIBROUS TAPE FOR MANUFACTURING PREFORM - A dry, fibrous tape for use in an automated placement process such as ATL or AFP and a preform produced therefrom. The preform is configured for resin infusion. The tape contains a layer of unidirectional fibers, at least one nonwoven veil bonded to one side of the fiber layer, and at least binding materials present within the tape. The preform produced from laying down such tape exhibits a low-bulk property that is close to the final thickness of the cured fiber-reinforced resin article and no further consolidation or compaction is required. | 12-31-2015 |
20150337183 | FUNCTIONALIZED POLYMER PARTICLES FOR USE AS TOUGHENING AGENT - Composite materials and structural adhesives containing particles of functionalized polymers as a toughening agent. The particles are composed of functionalized polyaryletherketone (PAEK) polymer or copolymer thereof that contain chemical functional groups capable of reacting with a thermoset resin component to form covalent bonds. | 11-26-2015 |
20150337082 | PARTICULATE AMINE-FUNCTIONALIZED POLYARYLETHERKETONE POLYMER AND COPOLYMERS THEREOF - Particles of an amine-functionalised polyaryletherketone polymer or copolymer thereof. The amine-functionalised polyaryletherketone polymer or copolymer thereof is selected from the group consisting of: polyaryletherketone polymer with terminal amine or protected amine functional group(s); polyaryletherketone-imide copoplymer with terminal amine or protected amine functional group(s); and polyaryletherketone-sulphone copolymer with terminal amine or protected amine functional group(s). | 11-26-2015 |
20150315465 | STABILIZING COMPOSITIONS FOR STABILIZING MATERIALS AGAINST ULTRAVIOLET LIGHT AND THERMAL DEGRADATION - Stabilizer compositions for stabilizing materials against degradation due to thermal and ultraviolet light exposure are disclosed herein. In some instances, the stabilizer compositions include an ortho-hydroxyl tris-aryl-s-triazine compound; a hindered amine light stabilizer compound; a hindered hydroxybenzoate compound; a phosphite compound, an acid scavenger and/or thioester; and a hindered phenol antioxidant compound | 11-05-2015 |
20150259583 | POLYURETHANE ADHESIVES FOR REVERSE OSMOSIS MODULES - An adhesive composition suitable for reverse osmosis modules, the adhesive composition includes (I) a polyurethane composition that includes (A) an isocyanate group-containing pre-polymer comprising a reaction product of (i) castor oil or a derivative thereof; and (ii) a polyisocyanate; and (iii) optionally a second polyol; and (B) an isocyanate-reactive polyol mixture comprising: (i) a polybutadiene polyol; and (ii) a urethane catalyst; and (iii) optionally the second polyol; and (II) a plasticizer wherein the adhesive composition is essentially free from diluent oils and solvents. | 09-17-2015 |
20150175844 | METHOD OF REDUCING SCALE IN THE BAYER PROCESS - Methods for reducing aluminosilicate containing scale in a Bayer process involving treating a Bayer process equipment surface with a scale inhibiting composition having high ionic strength prior to exposure to a Bayer process stream. | 06-25-2015 |
20150175746 | MULTIFUNCTIONAL BENZOXAZINES AND COMPOSITE MATERIALS INCORPORATING THE SAME - A curable resin composition containing a blend of multifunctional benzoxazines, and composite materials derived therefrom. The benzoxazine blend contains the combination of (A) a difunctional benzoxazine component and (B) a multifunctional benzoxazine component with functionality of greater than 2. Cured matrix resins and cured composite materials containing such benzoxazine blend exhibit a significant retardation in the rate of organic solvent uptake as compared to the same cured matrix resins and composite materials without component (B). | 06-25-2015 |
20150174807 | POLYACRYLONITRILE (PAN) POLYMERS WITH LOW POLYDISPERSITY INDEX (PDI) AND CARBON FIBERS MADE THEREFROM - A method for synthesizing polyacrylonitrile (PAN) polymer with a narrow molecular weight distribution is disclosed. The preferred PAN polymer has a PDI (Mw/Mn) of about 2 or less. Such PAN polymer is synthesized by controlled/living radical polymerization using a special RAFT (Reversible Addition-Fragmentation Chain Transfer) agent. Also disclosed is a method for producing carbon fibers from PAN polymer with low PDI. | 06-25-2015 |
20150145163 | METHOD AND SYSTEM FOR IMPREGNATING FIBERS TO FORM A PREPREG - A method for impregnating a fibrous material with a curable resin to form a prepreg is disclosed. The method includes conveying a web material through at least one moving pressure nip formed between a moving pressure roller and a moving supporting surface, wherein the moving pressure roller and the moving supporting surface travel at different velocities relative to each other resulting in a relative velocity between the web material and the pressure nip. The at least one moving pressure nip travels in the same direction as the web material while applying sufficient pressure to compress the web material and to affect impregnation of the fibrous material with the curable resin. Also disclosed is a system for implementing the disclosed impregnation method. | 05-28-2015 |
20150096680 | AQUEOUS PRIMER COMPOSITION FOR ENHANCED FILM FORMATION AND METHOD OF USING THE SAME - A water-based bonding primer composition and a method of applying the same onto a metallic surface prior to adhesive bonding. The bonding primer composition is a water-based dispersion containing water, one or more epoxy resins, one or more curing agents, a silane compound, a low amount of propylene carbonate (PC), and optional additives. The bonding primer composition can form substantially smooth films by spraying, and at the same time, meet environmental regulations and provide high bonding performance. | 04-09-2015 |
20150056433 | BONDING OF COMPOSITE MATERIALS - Peel ply for surface preparation and a method of surface preparation prior to adhesive bonding. A resin-rich peel ply is applied onto a curable, resin-based composite substrate, followed by co-curing. After co-curing, the composite substrate is fully cured but the matrix resin in the peel ply remains partially cured. When the peel ply is removed, a roughened, bondable surface with chemically-active functional groups is revealed. The composite substrate with the chemically-active, bondable surface may be bonded to another composite substrate to form a covalently-bonded structure. | 02-26-2015 |
20140355225 | FORMULATED RESIN COMPOSITIONS FOR FLOOD COATING ELECTRONIC CIRCUIT ASSEMBLIES - Formulated resin systems containing polymeric flood coat compositions are provided herein and characterized by having an initial mix thixotropic index from 1 to 5, and a gel time from 5 to 15 minutes such that when cured the compositions provide a Shore hardness from 15 A to 90 A, a thickness on horizontal surfaces from 20 mils to 75 mils, and a thickness on vertical surfaces from 4 mils to 20 mils. Electronic circuit assemblies flood coated with such formulated resin systems, and methods for protecting and supporting said assemblies, are also provided. | 12-04-2014 |
20140309352 | MALEIMIDE RESINS - A curable polymer composition comprising:
| 10-16-2014 |
20140274847 | CORROSION INHIBITORS AND METHODS OF USING SAME - Ashless corrosion inhibitor compositions including one or more reaction product formed from the reaction of a polyether compound of formula | 09-18-2014 |
20140213435 | PHOSPHONIUM-BASED IONIC LIQUIDS - Quaternary phosphonium haloaluminate compounds according to Formula (I): | 07-31-2014 |
20140175709 | METHOD FOR FORMING SHAPED PREFORM - A method for shaping dry preform material prior to resin infusion is disclosed. The starting material to be shaped is a preform blank (e.g. flat sheet) of dry, fibrous material. The shaping process is a vacuum forming process that relies on controlling the vacuum pressure and deformation speed to produce a shaped preform with three-dimensional configuration. The purpose of the shaping process described herein is to enable an automated process to replace the conventional hand lay-up operation. | 06-26-2014 |
20140174641 | CURABLE PREPREGS WITH SURFACE OPENINGS - Curable prepregs possessing enhanced ability for the removal of gases from within prepregs and between prepreg plies in a prepreg layup prior to and/or during consolidation and curing. Each curable prepreg is a resin-impregnated, woven fabric that has been subjected to a treatment to create an array of openings in at least one major surface. Furthermore, the location of the openings is specific to the weave pattern of the fabric. | 06-26-2014 |
20140170408 | Particle Toughening for Improving Fracture Toughness - A curable prepreg ply formed by applying two outer resin films to the top and bottom surfaces, respectively, of a layer of resin-impregnated reinforcement fibers. The outer resin films contains insoluble toughening particles, and partially soluble or swellable toughening particles, but the resin matrix which impregnates the reinforcement fibers does not contain the same toughening particles. The insoluble toughening particles are insoluble in the resin matrix of the resin films upon curing of the prepreg ply. The partially soluble or swellable toughening particles are partially soluble or swellable in the resin matrix of the resin films upon curing of the prepreg ply, but remain as discreet particles after curing. | 06-19-2014 |
20140154496 | CONDUCTIVE SURFACING MATERIAL FOR COMPOSITE STRUCTURES - An electrically conductive surfacing material capable of providing sufficient conductivity for lightning strike protection (LSP) and/or electromagnetic interference (EMI) shielding is disclosed. The conductive surfacing material is a multi-layered structure having a very thin conductive layer (e.g. solid metal foil) and a resin film formed on at least one surface of the conductive layer. The resin film is formed from a curable resin composition containing an epoxy novolac resin, a tri-functional or tetra-functional epoxy resin, ceramic microspheres, a latent amine-based curing agent, particulate inorganic fillers; and a toughening component. Optionally, the resin film further includes conductive additives to increase electrical conductivity of the surfacing material. The resin film exhibits high T | 06-05-2014 |
20140144568 | BONDING OF COMPOSITE MATERIALS - A composite bonding process is disclosed. At least one of two curable, resin-based composite substrates is partially cured to a degree of cure of at least 10% but less than 75% of full cure. The composite substrates are then joined to each other with a curable adhesive there between. Co-curing of the joined substrates is carried out to form a bonded composite structure, whereby the adhesive is chemically bonded to and mechanically diffused with the resin matrix of the composite substrates, resulting in a chemically bonded interface between the adhesive and each composite substrate. Furthermore, bonding can occur with the presence of contaminants on the joined surfaces. | 05-29-2014 |
20140135443 | Thermoset Resin Composite Materials Comprising Inter-Laminar Toughening Particles - A resin system containing:
| 05-15-2014 |
20140113804 | ASYMMETRIC PHOSPHONIUM HALOALUMINATE IONIC LIQUID COMPOSITIONS - Quaternary phosphonium haloaluminate compounds according to Formula (I): | 04-24-2014 |
20140110633 | Surface Engineering of Thermoplastic Materials and Tooling - A prepared mold tool having a thermoplastic surface layer polymer coating on the mold surface of the mold tool or prepared prepreg having a thermoplastic surface layer polymer coating on the surface of the thermoplastic fiber reinforced prepreg are described that enhance first ply laydown of thermoplastic fiber reinforced composite prepregs onto mold tools for prepreg forming or in situ tape placement. Resulting thermoplastic fiber reinforced composite parts from a thermoplastic fiber reinforced thermoplastic composite material having structural reinforcement fibers with one or more high performance polymers, and a thermoplastic surface layer polymer coating which forms a polymer blend with the high performance polymers of the thermoplastic fiber reinforced composite material thereby imparting improved properties, and methods for making and using same, are provided herein. | 04-24-2014 |