| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing dicyclopentadienes modified phenolic resin, in which the method has high yield and no problem such as ignition during the manufacturing process thereof, and can attain excellent color tone improving effect, and to provide dicyclopentadienes modified phenolic resin using the phenolic resin produced by producing method thereof, and an epoxy resin obtained by epoxidizing the phenolic resin, and cured product thereof.SOLUTION: A method for producing dicyclopentadienes modified phenolic resin improved in color tone includes: a blending step of adding an active carbon having an average pore radius of 0.9 nm or more to a solution comprising dicyclopentadienes modified phenolic resin and solvent, and blending them together to obtain a blended liquid; a mixing step of mixing the blended liquid; an active carbon removing step of removing the active carbon from the blended liquid to obtain a treated liquid comprising the dicyclopentadienes modified phenolic resin and the solvent; and a recovering step of removing the solvent from the treated liquid to recover the dicyclopentadienes modified phenolic resin.SELECTED DRAWING: None |
