摘要:
The resin composition of the present invention comprises a cyanate ester compound (A) obtained by cyanating a modified naphthalene formaldehyde resin, and an epoxy resin (B).
摘要:
Provided are a naphthalene formaldehyde resin obtained by reacting a compound (A) represented by formula (1) and formaldehyde (B) in a molar ratio, (A) : (B), of 1 : 1 to 1 : 20 in the presence of an acidic catalyst, and a deacetalized naphthalene formaldehyde resin and a modified naphthalene formaldehyde resin derived therefrom.
摘要:
There are provided a prepreg having low water absorption, and of which deterioration in insulation resistance over time is remarkably suppressed, and further having excellent heat resistance, a metal foil-clad laminate using the prepreg, and a printed wiring board using the metal foil-clad laminate. A prepreg of the present invention is obtained by impregnating or coating a base material (D) with a resin composition comprising: a naphthol-modified dimethylnaphthalene formaldehyde resin (A); an epoxy resin (B) having an epoxy equivalent of 200 to 400 g/eq.; and an inorganic filler (C).
摘要:
It is provided that a resin composition for sealing electrical electronic components which is not susceptible to gelation even when stagnant under high temperature conditions, and which are excellent in initial bond strength to an aluminum material, and which exhibits superior durability under a cooling and heating cycle load and the like. It is also provided that a sealed electrical electronic component with the resin composition for sealing electrical electronic components. A resin composition for sealing electrical electronic components, containing a crystalline polyester-based elastomer (A), a phenol-modified xylene resin (B1) and/or a phenol resin (B2), and a polyolefin resin (C), and having a melt viscosity of 5 dPa·s or more and 3000 dPa·s or less when dried to a water content of 0.1% or less, heated to 220°C, subjected to a pressure of 1 MPa, and extruded through a die with a hole diameter of 1.0 mm and a thickness of 10 mm.
摘要:
A binder composition for an electrochemical device positive electrode contains a polymer and an organic compound. The polymer includes a nitrile group-containing monomer unit and an alkylene structural unit. The organic compound includes not fewer than 2 and not more than 15 aromatic hydrocarbon monocycles and not fewer than 2 and not more than 15 sulfur atom-containing functional groups, on average, per one molecule.
摘要:
There are provided a prepreg having low water absorption, and of which deterioration in insulation resistance over time is remarkably suppressed, and further having excellent heat resistance, a metal foil-clad laminate using the prepreg, and a printed wiring board using the metal foil-clad laminate. A prepreg of the present invention is obtained by impregnating or coating a base material (D) with a resin composition comprising: a naphthol-modified dimethylnaphthalene formaldehyde resin (A); an epoxy resin (B) having an epoxy equivalent of 200 to 400 g/eq.; and an inorganic filler (C).
摘要:
Provided are novel thio compounds and a method for preparing the same. More particularly, there is provided a novel thio compound prepared by reacting an alkylation product of p -cresol and dicyclopentadiene with mercaptan and paraformaldehyde. Unlike existing antioxidants such as 2,6-di- t -butyl-4-methylphenol (BHT) being harmful to the human body due to the high volatility, the novel thio compounds of the present invention, which have the low volatility because of their high molecular weight, give no harm to the human body. Further, with excellent performances, they are suitable to replace the existing antioxidants.