| 摘要 |
PROBLEM TO BE SOLVED: To obtain an epoxy resin composition which can give a molding having excellent mold release, non-cloudiness, and high transparency by using an epoxy resin, a curing agent, a cure accelerator, and a mold release agent having a specified structure as the essential components. SOLUTION: The epoxy resin used is not particularly limited so far as it is one having at least two epoxy groups in the molecule and is exemplified by a bisphenol A type epoxy resin or an alicyclic epoxy resin. The curing agent used is exemplified by hexahydrophthalic anhydride or an amine type curing agent, and the cure accelerator used is exemplified by triphenylphosphine or triethanolamine. The mold release agent used is a compound represented by the formula (wherein R is a 12-100C saturated hydrocarbon group; and (x) is an integer of 6-100), for example, CH3(CH2)46CO(OCH2CH2)16OH and is used in an amount of, desirably, 0.1-5 wt.% based on the total amount of all the components. The mold release agent permits the composition to give a molding satisfactory in all of mold release, apparent transparency, and light transmittance. |
