Abstract:
A method for efficiently producing a cyanogen halide with suppressed side effects, and a method for producing a high-purity cyanate ester compound at a high yield includes contacting a halogen molecule with an aqueous solution containing hydrogen cyanide and/or a metal cyanide, so that the hydrogen cyanide and/or the metal cyanide is allowed to react with the halogen molecule in the reaction solution to obtain the cyanogen halide, wherein more than 1 mole of the hydrogen cyanide or the metal cyanide is used based on 1 mole of the halogen molecule, and when an amount of substance of an unreacted hydrogen cyanide or an unreacted metal cyanide is defined as mole (A) and an amount of substance of the generated cyanogen halide is defined as mole (B), the reaction is terminated in a state in which (A):(A)+(B) is between 0.00009:1 and 0.2:1.
Abstract:
The present invention relates to a diacrylate compound represented by general formula (1), a composition thereof, and a cured product of the compound/composition. In the formula, R denotes a hydrogen atom or a methyl group; R1, R2, R3, and R4 each independently denote a C1-6 linear or branched alkyl group, with the proviso that R1, R2, R3, and R4 are not all methyl groups.The present invention provides: a novel diacrylate compound which can provide a cured product having an excellent balance of physical properties such as low curing shrinkage, flexibility, resistance to bending, and low curling properties, and which can be used as a photo- or thermal-radical polymerizable monomer; a composition of the compound; and a cured product of the compound/composition.
Abstract:
Provided is a urethane (meth)acrylate capable of achieving high strength and high elongation, as well as a method for manufacturing a urethane (meth)acrylate, a curable composition, a cured article, and a method for manufacturing a cured article. The urethane (meth)acrylate contains a structural unit derived from polycarbonate diol, a structural unit derived from polyisocyanate, and a hydroxy group-containing (meth)acrylate-derived group, the polycarbonate diol containing one or more types of structural unit represented by formula (1) wherein each of R1, R2, R3 and R4 independently represents an aliphatic hydrocarbon group having 1 to 6 carbon atoms.
Abstract:
The invention provides a triacrylate compound represented by the following formula (1). In the formula, each R is independently a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or a halogen atom, R1 and R2 are each independently a linear or branched alkyl group having 1 to 6 carbon atoms, and R3 is a linear or branched alkyl group having 1 to 6 carbon atoms or a hydroxymethyl group.
Abstract:
The present invention relates to a limited composition containing a diacrylate compound represented by general formula (1). In the formula, R denotes a hydrogen atom or a methyl group.The present invention provides a diacrylate-compound-containing composition which provides a cured product having excellent physical properties such as low curing shrinkage, flexibility, resistance to bending, and low curling properties, and which can be used as a photo- or thermal-radical polymerizable composition and a cured product of the composition.