Patent ID: 7595362
Filing Date: 2009-09-29
Classification: B32B,C08F,C08K,C08L,C09D,H05K,Y10T

Abstract:
1. A curable resin composition comprising: a component (A) which is a polyphenylene ether oligomer having a number average molecular weight Mn of 700 to 4,000, having a vinyl group on each terminal, and represented by the formula (1): wherein: Z represents an organic group which has one or more carbon atoms and which may have an oxygen atom; T represents a vinyl group; a and b each represent an integer of 0 to 20 and at least one of a and b is not 0; i and j each independently represent an integer of 0 or 1; —(O—X—O)— is represented by the formula (2); and —(Y—O)— represents one or more structures represented by the formula(3): wherein: A represents a single bond or a linear, branched, or cyclic hydrocarbon group having 20 or less carbon atoms; R 1 , R 2 , R 7 , R 8 , R 9 , and R 10 each independently represent a halogen atom, an alkyl group having 6 or less carbon atoms, or a phenyl group; and R 3 , R 4 , R 5 , R 6 , R 11 , and R 12 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 6 or less carbon atoms, or a phenyl group; and a component (B) which is a solvent-soluble polyfunctional vinyl aromatic copolymer having an indan structure represented by the following general formula (4) in a main chain skeleton of the polyfunctional vinyl aromatic copolymer: wherein: Q represents a saturated or unsaturated aliphatic hydrocarbon group, an aromatic hydrocarbon group, an aromatic ring condensed to a benzene ring, or a substituted aromatic ring; and n represents an integer of 0 to 4 and structural units derived from monomers each formed of a divinyl aromatic compound (a) and an ethylvinyl aromatic compound (b), having a repeating unit derived from the divinyl aromatic compound (a) of 20 mol% or more, having a mole fraction of structural units having a vinyl group derived from the divinyl aromatic compound (a) and represented by the following formulae (a1) and (a2): wherein: R 13 represents an aromatic hydrocarbon group having 6 to 30 carbon atoms; and R 14 represents an aromatic hydrocarbon group having 6 to 30 carbon atoms, the mole fraction satisfying the expression (a1)/[(a1)+(a2)]≧0.5, having a number average molecular weight (Mn) measured through gel permeation chromatography (GPC) of 600 to 30,000 calculated by standard polystyrene samples with narrow molecular weight distribution, and having a ratio (Mw/Mn) of a weight average molecular weight (Mw) and the number average molecular weight (Mn) of 20.0 or less, the curable resin composition being characterized in that: a mixing amount of the component (A) is 20 to 98 wt % with respect to a total amount of the component (A) and the component (B).