Abstract: This invention provides improved methods and compositions for achieving material coloration using particle scattering. These coloration effects can be designed to be either highly stable or dependent upon the switching effects of either temperature, integrated thermal exposure, moisture absorption, or exposure to actinic radiation. Articles employing materials with these coloration effects are described. Composition comprise a solid, light-transmitting matrix component having a non-liquid particle scattering colorant dispersed. Articles are produced wherein another solid second matrix component has an electronic transition colorant dispersed therein and the first and second compositions are disposed on one another and optionally interpenetrate each other. Colored articles are produced in the form of fibers, films and molded articles.

Abstract: Disclosed are a gapped magnetic core which may be coated or uncoated with an insulating layer or housed in an insulting box having a physical gap whose dimension is close to that of the gapped magnetic core and automated or semi-automated methods of applying copper wire on the gapped core or the core assembly and filling the gap with a spacer in the core or core assembly. The disclosed processes allow various combinations of core and spacer materials and gap configurations, resulting in a wide variety of core-coil assemblies which are useful as inductive components in electric and electronic circuits. Also disclosed is a core-coil assembly wherein a magnetic core with a gap directed off the conventional radial direction of a toroidally-wound core.

Abstract: A process for making a polyamide substrate characterized by enhanced breaking strength and fade resistance is disclosed. The process features the steps of treating a polyamide substrate, preferably a nylon 6 substrate having a hindered amine light stabilizer chemically bound thereto, with an effective amount of an ultraviolet inhibitor, an antioxidant and optionally, a dye, in the presence of a swelling agent for the polyamide that is also a solvent for the ultraviolet inhibitor and the antioxidant to impart high breaking strength to the substrate. A life preserver or other type of buoyancy device may be made from the process. A polyamide fabric comprising a dye, an ultraviolet inhibitor and an antioxidant also is disclosed. When a polyamide fiber of the present invention is exposed to sunlight, the useful life of the fiber is greatly increased compared to untreated polyamide fiber.

Abstract: The present invention provides load leveling and impact energy absorption webbing comprising warp yarn. If the webbing is used in seat belts, the webbing provides load leveling behavior from about 450 pounds (about 2,000 Newtons) to about 1,800 pounds (about 8,000 Newtons) in vehicle collision. The yarn has a force-displacement profile such that: (a) when the yarn is subjected to an initial barrier stress of from about 0.2 gram/denier to less than or equal to about 1.4 grams/denier, the yarn elongates to less than 3 percent and the initial modulus ranges from about 20 grams/denier to about 150 grams/denier; (b) upon subjecting the yarn to greater than the initial barrier stress and less than or equal to 1.8 grams/denier, the yarn elongates further to at least about 10 percent and the energy absorbed from 0 to the elongation at 1.8 grams/denier is at least about 0.0008 Joule/denier·meter; and (c) upon subjecting the yarn to greater than 1.

Abstract: Oxygen barrier films exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. These films comprise a polyamide homopolymer, copolymer, or blends thereof; an ethylene vinyl alcohol copolymer; an oxidizable polydiene; and at least one metal salt catalyst. These films are particularly suited to making high barrier, retortable packaging structures such as pouches, containers etc. Such articles are useful for packaging a variety of oxygen-sensitive foods, beverage, medical and health care products.

Abstract: A glassy metal alloy consists essentially of the formula CoaNibFecMdBeSifCg, where M is at least one element selected from the group consisting of Cr, Mo, Mn and Nb, “a-g” are in atom percent and the sum of “a-g” equals 100, “a” ranges from about 25 to about 60, “b” ranges from about 5 to about 45, “c” ranges from about 6 to about 12, “d” ranges from about 0 to about 3, “e” ranges from about 5 to 25, “f” ranges from about 0 to about 15 and “g” ranges from about 0 to 6, said alloy having a value of the saturation magnetostriction between −3 ppm and +3 ppm. The alloy can be cast by rapid solidification from the melt into ribbon, sheet or wire form. The alloy exhibits non-linear B—H hysteresis behavior in its as-cast condition.

Abstract: The present invention provides highly oriented multilayer films. They are produced by coextruding or laminating films having at least one layer of a fluoropolymer, at least one layer of a polyolefin homopolymer or copolymer and an intermediate adhesive layer of a polyolefin having at least one functional moiety of an unsaturated carboxylic acid or anhydride thereof. With this structure the polyolefin layer allows the fluoropolymer layer to be stretched up to ten times its original length. Such a high orientation ratio for the fluoropolymer film increases the mechanical strength, toughness, and water vapor barrier properties of the film while using a thinner gauge fluoropolymer film. Coextrusion processing can be done at higher temperatures, i.e. in the range of from at about 280° C. to about 400° C. These temperatures allow films to be produced in the absence of polymer degradation and film melt fracture.

Abstract: A high efficiency electric motor has a generally polyhedrally shaped bulk amorphous metal magnetic component in which a plurality of layers of amorphous metal strips are laminated together to form a generally three-dimensional part having the shape of a polyhedron. The bulk amorphous metal magnetic component may include an arcuate surface, and preferably includes two arcuate surfaces that are disposed opposite to each other. The magnetic component is operable at frequencies ranging from about 50 Hz to about 20,000 Hz. When the motor is operated at an excitation frequency “f” to a peak induction level Bmax, the component exhibits a core-loss less than “L” wherein L is given by the formula L=0.0074 f (Bmax)1.3+0.000282 f1.5 (Bmax)2.4, said core loss, said excitation frequency and said peak induction level being measured in watts per kilogram, hertz, and teslas, respectively.

Abstract: A spark ignition system for igniting fuel in an internal combustion engine is described. The spark ignition system includes a magnetic core-coil assembly having a ferromagnetic amorphous metal magnetic core and driver electronics. The core-coil assembly and driver electronics are capable of operating with a rapid charge and discharge cycle to produce a high spark pulse rate.

Abstract: An apparatus and method for casting metal strip includes a moving chill body that has a quench surface. A nozzle mechanism deposits a stream of molten metal on a quenching region of the quench surface to form the strip. The nozzle mechanism has an exit portion with a nozzle orifice. A depletion mechanism includes a plurality of independently controllable gas nozzles to supply a reducing gas to multiple zones of a depletion region located adjacent to and upstream from the quenching region. The gas flow profile can be controlled in each zone independently of controlling the gas flow in other zones. The reducing gas reacts exothermically to lower the density to provide a low density reducing atmosphere within the depletion and substantially prevent formation of gas pockets in the strip.

Abstract: Improved packaging films, which are shrinkable, high gas barrier films containing an antifog composition for modified atmosphere packaging of foods and the like. The films are useful for producing a modified atmosphere package useful for the preservation and shelf life extension of food and non-food oxygen sensitive items.

Abstract: A frictionally welded, filled thermoplastic article is strengthened by restricting lateral flow of molten material out of the gap between the workpieces, so that a molten pool of substantial depth is maintained from the beginning of melting to the onset of solidification. The restriction to lateral flow of material is provided by dams (projections) of essentially rectangular cross-section at each lateral edge of one of the workpieces, while the other workpiece has a substantially flat mating surface.

Abstract: Polyethylene solutions are extruded through a multi-orifice spinneret into a cross-flow gas stream to form a fluid product. The fluid product is stretched at a temperature at which a gel will form at a stretch ratio of at least 5:1 over a length of less than about 25 mm with the cross-flow gas stream velocity at less than about 3 m/min. The fluid product is quenched in a quench bath consisting of an immiscible liquid to form a gel. The gel is stretched. The solvent is removed from the gel to form a xerogel and the xerogel product is stretched in at least two stages to produce a polyethylene yarn characterized by a tenacity of at least 35 g/d, a modulus of at least 1600 g/d and a work to break of at least 65 J/g. The yarn is further characterized by having greater than about 60% of a high strain orthorhombic crystalline component and, optionally, a monoclinic crystalline component greater than about 2% of the crystalline content. Composite panels made with these yarns exhibit excellent ballistic resistance, e.

Abstract: This invention provides improved methods and compositions for achieving material coloration using particle scattering. These coloration effects can be designed to be either highly stable or dependent upon the switching effects of either temperature, integrated thermal exposure, moisture absorption, or exposure to actinic radiation. Articles employing materials with these coloration effects are described Composition comprise a solid, light-transmitting matrix component having a non-liquid particle scattering colorant dispersed. Articles are produced wherein another solid second matrix component has an electronic transition colorant dispersed therein and the first and second compositions are disposed on one another and optionally interpenetrate each other. Colored articles are produced in the form of fibers, films and molded articles.

Abstract: A glassy metal alloy consists essentially of the formula CoaNibFecMdBeSifCg where M is at least one element selected from the group consisting of Cr, Mo, Mn and Nb, “a-g” are in atom percent and the sum of “a-g” equals 100, “a” ranges from about 25 to about 60, “b” ranges from about 5 to about 45, “c” ranges from about 6 to about 12, “d” ranges from about 0 to about 3, “e” ranges from about 5 to 25, “f” ranges from about 0 to about 15 and “g” ranges from about 0 to 6, said alloy having a value of the saturation magnetostriction between −3 ppm and +3 ppm. The alloy can be cast by rapid solidification from the melt into ribbon, sheet or wire form. The alloy exhibits rounded or rectangular or sheared B-H hysteresis behaviors in its as-cast condition.

Abstract: The present invention provides halopolymer-containing multicomponent structures comprising at least one halopolymer layer and at least one adhesive layer. The adhesive layer comprises a base polymer having at least one functional moiety selected from the group consisting of unsaturated acids and anhydrides thereof, amines and epoxy compounds, wherein said adhesive layer has an ASTM D-2240 shore hardness number of less than about 25 in the D scale and less than about 75 in the A scale. Multicomponent structures such as films, tubing, sheet and injection molded and blow molded articles prepared with these adhesives exhibit superior adhesion as well as the excellent barrier properties typically associated with halopolymer-containing multicomponent structures. A method of improving the adhesion of halopolymers is disclosed as well.

Abstract: Yarns having a spin finish composition thereon comprising at least about 10 percent by weight based on the spin finish composition of components (a) and (b) having the formula R1(CO)x—O—(CH(R2)—CH2—O)y—(CO)zR3, wherein each of R1 and R3 is selected from the group consisting of hydrogen or an allyl group having from one to 22 carbon atoms or an alkylene hydroxy group having from one to 22 carbon atoms, x is zero or one, R2 may vary within component (a) or component (b) and is selected from the group consisting of hydrogen or an alkyl group having from one to four carbon atoms, y is zero, or fiom one to 25, and z is zero or one, in component (a), x and z are equal to zero and the average molecular weight of component (a) is less than or equal to 1,900 and if R2 varies, component (a) is a random copolymer; and in component (b), at least x or z is equal to one or component (b) is a complex polyoxyethylene glyceride-containing compound having greater than 10 polyoxyethylene units; (c)

Abstract: Oxygen barrier polyamide compositions exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. Thus a polyamide composition comprises a polyamide homopolymer, copolymer, or blends thereof, and at least one polyamide reactive, oxidizable polydiene or oxidizable polyether. The polyamide products are particularly suited to making barrier packaging articles such as monolayer or multi-layer films, sheets, thermoformed containers and coinjection/coextrusion blow molded bottles comprising PET, polyolefin or polycarbonate as structural layers. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical and health care product packaging applications.

Abstract: A high efficiency electric motor has a generally polyhedrally shaped bulk amorphous metal magnetic component in which a plurality of layers of amorphous metal strips are laminated together to form a generally three-dimensional part having the shape of a polyhedron. The bulk amorphous metal magnetic component may include an arcuate surface, and preferably includes two arcuate surfaces that are disposed opposite to each other. The magnetic component is operable at frequencies ranging from between approximately 60 Hz and 20,000 Hz and exhibits (i) a core-loss of less than or approximately equal to 1 watt-per-kilogram of amorphous metal material when operated at a frequency of approximately 60 Hz and at a flux density of approximately 1.4 Tesla (T); (ii) a core-loss of less than or approximately equal to 20 watts-per-kilogram of amorphous metal material when operated at a frequency of approximately 1000 Hz and at a flux density of approximately 1.

Abstract: The invention relates to nylon compositions having improved surface aesthetics while maintaining its physical properties and to a method for preparing molded articles of from such nylon compositions. The nylon composition is composed of a substantially uniform blend of nylon 6,6,6 copolymer of from about 65 to about 75 parts by weight of caprolactam and from about 25 to about 35 parts by weight of hexamethylenediamine and adipic acid in a 1:1 ratio; together with a second polyamide which is nylon 6 homopolymer. The first polyamide is present in the overall composition in an amount of from about 7 to about 20 weight percent and said second polyamide is present in the overall composition in an amount of from about 80 to about 83 weight percent. The nylon compositions are useful to create injection molded articles having a good surface appearance and good performance at a low cost.