Abstract:
A conductive paste comprising silver powder as a major component and metal oxide powder of which primary particles have a hollow structure is used. The metal oxide is preferably silica. In an electronic part comprising a ceramic body and an internal electrode formed inside the ceramic body, preferably, the internal electrode is formed from the conductive paste. A surface layer electrode can be also formed from the conductive paste.
Abstract:
The present invention provides an at least partially coated fiber strand comprising a plurality of glass fibers having a resin compatible coating composition on at least a portion of a surface of at least one of said glass fibers, the resin compatible coating composition comprising: (a) a plurality of lamellar, inorganic particles and (b) at least one polymeric material. The present invention further provides that the resin compatible coating composition comprises (a) a plurality of discrete particles formed from materials selected from non-heat expandable organic materials, inorganic polymeric materials, non-heat expandable composite materials and mixtures thereof, the particles having an average particle size sufficient to allow strand wet out; (b) at least one lubricious material different from said plurality of discrete particles; and (c) at least one film-forming material. The present invention further provides that the resin compatible coating composition comprises (a) a plurality of hollow, non-heat expandable organicparticles; and (b) at least one lubricious material different from the at least one hollow organic particle.
Abstract:
The present invention provides glass fiber strands impregnated with non-abrasive solid particles which provide interstitial spaces of at least 3 micrometers between adjacent fibers within a strand which are useful for reinforcing composites.
Abstract:
A pre-preg substrate, having a low dielectric constant and containing a substantially uniformly distributed hollow-glass-microsphere filler, and method for making the same. The pre-preg substrate is treated with impregnation and lamination techniques to form a laminate with a low dielectric constant, and good mechanical and electrical properties, suitable as a base material for surface mounted devices in high performance circuits. Improved pre-pregs for making high performance circuit boards and for making surface mounted integrated circuits. Improved high performance circuit boards for making surface mounted integrated circuits.
Abstract:
A flame retardant, low dielectric constant, controlled coefficient of thermal expansion, low cost prepreg material which includes randomly distributed silane coated hollow microspheres has been prepared by standard impregnation and lamination techniques. Laminates made of this prepreg can be drilled cleanly for through holes and can be used as a substrate for surface mounted devices.
Abstract:
An insulating material formed from a network of hollow gas-filled microspheres embedded in a cured three-dimensional cross-linked polymer network of copolymerized unsaturated fluorinated monomers and acrylic monomers reacted in a fluorinated organic solvent.
Abstract:
A composite material of low dielectric constant, having minute hollow spheres of insulating material dispersed in a fibrous Polytetrafluoroethylene. The composite material has high mechanical strength.
Abstract:
Provided is a thermoplastic resin composition which is excellent in platability (appearance of plating), and keeps high reflectance even after thermal aging. A thermoplastic resin composition comprising: per (A) 100 parts by weight of a crystalline thermoplastic resin having a melting point, measured by differential scanning calorimetry (DSC) at a heating rate of 10°C/min, of 250°C or above; (B) 10 to 80 parts by weight of a glass filler; (C) 1 to 30 parts by weight of a laser direct structuring additive having a reflectance at 450 nm of 25% or above; and (D) 20 to 150 parts by weight of titanium oxide.
Abstract:
A bulk dielectric material comprises a solid composite material comprising a solid matrix material and a plurality of filler elements distributed within the matrix material. The bulk dielectric material has, at a frequency greater than 1 MHz, (i) a permittivity having a real part of magnitude greater than 10 and an imaginary part of magnitude less than 3, and (ii) an electrical breakdown strength greater than 5 kV/mm and has a minimum dimension greater than 2 mm.