Abstract:
A sheet comprising thermoplastic polymer (TP) and short high tensile modulus fibers, in which the concentration of TP in the middle of the sheet is higher than at the surface of the sheet, useful for making prepregs with a thermoset resin.
Abstract:
This invention relates to a hybrid composite material substrate. The substrate includes a conductive layer, an insulating layer, and a dispersion material extending from the conductive layer into the insulating layer.
Abstract:
A laminate includes a metal layer which is formed on and covers a surface of an insulating substrate activated by a plasma treatment by any method selected from a sputtering method, a vacuum depositing method and an ion plating method. The substrate is obtained by molding a resin composition containing 20 to 150 parts by mass of a fibrous filler having an average fiber diameter of 0.1 to 5 μm and an average fiber length of 10 to 50 μm relative to 100 parts by mass of a base resin comprising a thermoplastic resin and a thermosetting resin.
Abstract:
A thermoplastic glass fibers reinforced molding composition that exhibits improved mechanical properties and resistance to hydrolysis is disclosed. The composition contains at least one thermoplastic polymer, sized glass fibers, and optional conventional additives and auxiliary substances. The sizing agent that is substantially free of emulsifiers not bound to the resin contains (a) at least one epoxide-functional, oligomeric resin, having epoxide group content of 0.15 to 0.75 mole per 100 g of resin, average functionality of at least 2.3 epoxide groups per molecule, (b) at least one epoxide curing agents, and (c) at least one silane coupling agent.
Abstract:
A highly reliable LED display apparatus is provided in which dust and other similar particles are prevented from entering spaces formed between light-emitting diodes and openings in a mask member provided on a circuit board. The LED display apparatus has the circuit board, the light-emitting diodes provided at predetermined positions thereon, and the mask member which is disposed approximately parallel to the circuit board. The mask member has openings at positions corresponding to the light-emitting diodes which are placed inside the respective openings. In the LED display apparatus described above, the openings of the mask member have fine projections on side surfaces thereof. The fine projections can be formed on the mask member by a flock processing technique.
Abstract:
This invention concerns lasable bond-ply materials comprising a nonwoven reinforcing material and at least one resin material. The present invention also includes methods for using the bond-ply of this invention to manufacture high density multilayer printed wiring boards.
Abstract:
The present invention provides a nonwoven fabric material prepared from short fibers including thermal-resistant synthetic fibers bound with an inorganic binder, a prepreg and a circuit board using the same. The circuit board has an excellent dimensional stability even at a high temperature, and the circuit board is prevented from warping or being damaged by moisture absorption or the like. The inorganic binder is a residue formed from a low melting point glass solution or a water-dispersible colloidal solution including at least either fibers or particles of low melting point glass dispersed therein. When the binder is used, a chemical covalent bonding by a siloxane bonding is formed.
Abstract:
A resin molded component, comprising metal coating treatment being provided on the surface by a physical deposition method chosen from among sputtering, vacuum deposition, and ion plating after the surface is activated by plasma treatment, and is produced by forming a resin composition combined a base resin comprising of a thermoplastic resin or a thermosetting resin with a rubber-like elastic material.
Abstract:
This invention concerns electronic substrates comprising a non-woven filler material and a resin material. The present invention also includes electronic products manufactured from the electronic substrates of this invention including, but not limited to prepregs, metal clad laminates, and printed wiring boards with and without lased via holes. The present invention further includes a method of manufacturing printed built-up wiring boards including the steps of forming a prepreg and forming at least one via in the prepreg.
Abstract:
A composite material is presented comprised of a ceramic filled fluoropolymer wherein the ceramic is coated with a silane and the ceramic has a volume % fraction of between about 26-45. The composite of this invention exhibits excellent chemical resistance, particularly to alkaline environments. Preferably, the silane comprises a blend of at least one phenyl silane and at least one fluorosilane. The silane is preferably coated to a level of 10% of the total weight of ceramic filler.