Abstract: There is provided a novel method for producing a bifunctional epoxy monomer which comprises reacting diolefin with a hydrogen peroxide aqueous solution, in the presence of molybdenum or tungsten oxide as a catalyst to selectively epoxidize a double bound at a specific position. The bifunctional epoxy monomers provided by the present invention are substances widely used in various industrial fields such as chemical industry, as materials for resist materials (particularly solder resist materials), and intermediates of agrochemicals and medicines, and various polymers such as plasticizers, adhesives and coating resins.

Abstract: The invention relates to a polycarbonate diol, comprising an organic residue derived from a diol component represented by formula (1), wherein n is 0 or an integer of 1 to 4, and the norbornane structure or the cyclopentane structure may be substituted with a halogen group or a hydrocarbon group. The polycarbonate diol according to the present invention can give a polyurethane resin having excellent heat resistance and flexibility in a well-balanced manner and reliability in long-term insulating properties under high temperature/high humidity conditions.

Abstract: Disclosed is a carboxyl group-containing polyurethane (A) produced from a polyol (b) containing at least 10 mol % (relative to the total (100 mol %) of the polyol (b)) of a polyol (b1) which: (i) has a number-average molecular weight of 500 to 50,000; (ii) has 1 to 10 hydroxyl groups per molecule; and (iii) is one or a combination of two or more polyols selected from the group consisting of polybutadiene polyol, polyisoprene polyol, hydrogenated polybutadiene polyol and hydrogenated polyisoprene polyol. The carboxyl group-containing polyurethane (A) is suitable as materials of cured products, for example cured films, that are excellent in adhesion with substrates, low warpage, flexibility, plating resistance, soldering heat resistance and long-term reliability.

Abstract: There is provided a novel method for producing a bifunctional epoxy monomer which comprises reacting diolefin with a hydrogen peroxide aqueous solution, in the presence of molybdenum or tungsten oxide as a catalyst to selectively epoxidize a double bound at a specific position. The bifunctional epoxy monomers provided by the present invention are substances widely used in various industrial fields such as chemical industry, as materials for resist materials (particularly solder resist materials), and intermediates of agrochemicals and medicines, and various polymers such as plasticizers, adhesives and coating resins.

Abstract: The invention relates to a polycarbonate diol, comprising an organic residue derived from a diol component represented by formula (1), wherein n is 0 or an integer of 1 to 4, and the norbornane structure or the cyclopentane structure may be substituted with a halogen group or a hydrocarbon group. The polycarbonate diol according to the present invention can give a polyurethane resin having excellent heat resistance and flexibility in a well-balanced manner and reliability in long-term insulating properties under high temperature/high humidity conditions.