摘要:
Fiber reinforced composite products of enhanced interlaminar ply strength and processes of producing same. In forming the products, layers of fibrous reinforcing material and resinous matrix material are established. The matrix material contains unset resin and short fibers of an average particle length of 0.2-0.6 mm in a weight ratio of short fibers to resin in the range of 0.4-1. The reinforcing material comprises fibers of a length substantially greater than the length of the short fibers in the matrix material. The fiber and matrix layers are integrated in order to cause the resin and short fibers which comprise the strengthened matrix material to enter into the interstitial spaces of the longer fiber reinforcing material. Thereafter, the matrix resin is solidified in order to arrive at the fiber reinforced composite product. Alternate fiber and matrix layers may be built up on a surface while a pressure gradient is established from the outside of the built up layers to the surface in order to cause the resin to flow across the interfacial boundaries of the resin and fiber layers. The flow across the resin fiber interfaces promotes orientation of the short fibers in a direction across the interfaces so that the short fibers enter into the interstitial spaces between the reinforcing fibers.
摘要:
A retroreflective structure is described in which an array of free-standing retroreflective prisms is formed on a suitable substrate for application of the structure to pre-existing structure formed of compatible fabrics, such as tarpaulins.
摘要:
A method of producing a printed article includes the following steps: providing a first web of polyethylene upon which a pattern has been printed; providing a second web of plastics material from which the article is to be formed, one of the first or second webs having a heat seal lacquer applied thereto; passing the first and second webs through a pair of heated rollers to cause the heat seal lacquer to become tacky; directing the first and second webs in adjacent overlying relation to a vacuum forming machine including a mold and applying heat and vacuum in the vacuum forming machine to cause the first and second webs to conform to the shape of the mold to produce the printed article, wherein the application of heat in the vacuum forming machine activates the heat seal lacquer to adhere the first and second webs together.
摘要:
The present invention relates to electronic components and in particular relates to ceramic-based electronic components wherein a portion of the component comprises a metal-infiltrated ceramic. In a preferred embodiment, the metal-infiltrated ceramic comprises copper metal.
摘要:
A method of manufacturing a circulator includes the steps of forming, on at least one sheet (41, 42) of an insulating ferromagnetic material, dummy inner conductors (44a, 44b, 44c, 45a, 45b, 45e) made of a material which is thermally decomposed at a temperature equal to or less than a sintering completion temperature of the insulating ferromagnetic material, laminating a plurality of the sheets (40, 41, 42) of the insulating ferromagnetic material so that at least one insulating ferromagnetic material sheet (40, 41) covers the dummy inner conductors formed on the sheets (41, 42), firing the laminated insulating ferromagnetic material sheets (40, 41, 42) to form an insulating ferromagnetic material body (46) in a single continuous body and to form ducts (47) for inner conductors at portions occupied by the dummy inner conductors, injecting with pressure conductive paste into the ducts (47) in the insulating ferromagnetic material body (46), and firing the insulating ferromagnetic material body (46) to form the inner conductors (48) in the insulating ferromagnetic body (46).
摘要:
A method of fabricating ceramic green sheets with supporting films, in which first and second supporting films 13 and 14 are respectively affixed to both surfaces of a pressure sensitive adhesive double coated tape 12 to construct a supporting member 11, first and second ceramic green sheets 20 and 21 are respectively formed on both surfaces of the supporting member 11, and the first ceramic green sheet 20, along with the first supporting film 13, is stripped from the adhesive tape 12, thereby to obtain the ceramic green sheets 20 and 21 respectively supported by the supporting films 13 and 14.
摘要:
A method of producing easily densified high bulk fibers that have adhered particulates. The high bulk fibers have hydrogen bonding or coordinate covalent bonding functionalities, and a binder is applied to the fibers to bind the particles to the fibers. The binder has a functional group that forms a hydrogen bond or a coordinate covalent bond with the particles, and a functional group that forms a hydrogen bond with the fibers. A substantial portion of the particles that are adhered to the fibers are adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder is in turn adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.
摘要:
A zero scrap method for manufacturing side panels for use with absorbent articles including the following steps. First, a web of material having predetermined portions is provided in a machine direction. The predetermined portions are then activated to provide stretch in the side panels. The web is then cut continuously severing the web into a first panel and a second panel, each of the panels having alternating, nested inwardly extending elements defined by the cut and terminating at a distal edge. The inwardly extending elements are offset with respect to each other in the machine direction. The first and second panels are separated and positioned such that the inwardly extending elements of the first panel and the inwardly extending elements of the second panel are aligned in the machine direction. The distal edge of at least a portion of the first panel is then joined with at least a portion of the distal edge of the second panel. Finally, the composite of the first and second panels is severed in the cross machine direction to create an extensible side panel that can be joined to an absorbent article.
摘要:
A first object, which comprises organic material, is bonded to a second object by a method whereby both objects are provided with complementary optically smooth surfaces, subsequent to which these surfaces are brought into substantial contact with one another, consequent upon which spontaneous atomic bonds are formed between atoms of the two objects. The strength of the atomic bonds thus formed can be increased by subsequently heating the region of contact of the two surfaces.
摘要:
In a multilayer printed-circuit substrate comprising a plurality of insulating resin layers, a plurality of metal-made electrically conductive circuits respectively laminated between the insulating resin layers and on the upper surface of the uppermost-positioned insulating resin layer and electrically conductive portions for respectively electrically connecting adjacent upper- and lower-positioned conductive circuits to each other, the insulating resin layers except at least the lowest-positioned insulating resin layer have flexibility, and blackening-treated films prepared by applying blackening treatment to the surface of the respective electrically conductive circuits are respectively provided between the upper surfaces of the conductive circuits and the insulating resin layers laminated thereon.