Abstract:
PROBLEM TO BE SOLVED: To provide a laminate that can reduce the surface roughness of the surface of a roughening-treated cured body layer, and can increase the adhesive strength between a cured body layer and a metal layer.SOLUTION: The laminate 11 includes a cured body layer 3A formed by laminating a resin film on a substrate 12, forming a preliminary-cured body layer by preliminary-curing the resin film at 100-200°C, and performing a roughening treatment on the surface of the cured object layer at 55-80°C. The resin film is formed from a resin composition including an epoxy resin, a phenol curing agent, a curing accelerator, and a surface-treated substance which is a surface treated, using 0.5-3.5 pts.wt. of a silane coupling agent, on 100 pts.wt. of inorganic filler with a mean particle diameter of 0.05-1.5 μm. The silane coupling agent has an epoxy group, an imidazole group, or an amino group.
Abstract:
Provided is an epoxy resin composition capable of reducing the surface roughness of the surface of a roughening-treated cured body. The epoxy resin composition includes an epoxy resin, a curing agent, and a silica component obtained by performing a surface treatment on silica particles using a silane coupling agent; and the epoxy resin composition does not include a curing accelerator, or includes a curing accelerator at a content equal to or less than 3.5 parts by weight to a total of 100 parts by weight of the epoxy resin and the curing agent. Mean particle diameter of the silica particles is equal to or less than 1 mum. An amount B (g) of the silane coupling agent used for surface treatment, per 1 g of the silica particles in the silica component, is within a range between 10% to 80% with regard to a value C (g) per 1 g of the silica particles, which is calculated by the following formula (X). C (g)/1 g of Silica Particles=[Specific Surface Area of Silica Particles (m2/g)/Minimum Area Coated by Silane Coupling Agent (m2/g)]Formula (X)
Abstract:
PROBLEM TO BE SOLVED: To provide an insulated ultrafine powder capable of lessening a tangent δ while a dielectric constant of a high dielectric constant resin composite material is kept at a high level, to provide a manufacturing method thereof, and to provide a high dielectric constant resin composite material using the insulated ultrafine powder. SOLUTION: The insulated ultrafine powder is obtained by adding liquid metal alkoxide to a methanol containing organic solvent in which conductive ultrafine powder made of a carbon material is dispersed and further adding water. The manufacturing method for the insulated ultrafine powder is also provided. Further, the insulated ultrafine powder is obtained by adding liquid metal alkoxide to a methanol containing organic solvent in which conductive ultrafine powder made of a carbon material is dispersed and further adding water after adding a coupling agent with alkoxide group. The manufacturing method for the insulated ultrafine powder is also provided. Furthermore, the high dielectric constant resin composite material can be obtained by combining the insulated ultrafine powder and the resin in a range of a volume ratio (insulated ultrafine powder/resin) of 5/95 to 50/50. COPYRIGHT: (C)2011,JPO&INPIT