| 摘要 |
<p>A high-purity 2,2-diallylbisphenol A which is easy to handle and is solid. It is for use as raw materials for electronic materials, such as a hardener for semiconductor encapsulation materials and an additive for polyimide resins. It is a 2,2-bis(3-allyl-4-hydroxyphenyl)propane which is solid at 30°C and represented by the formula (1). [Chemical formula 1] (1) The solid 2,2-diallylbisphenol A is obtained by subjecting liquid 2,2-diallylbisphenol A obtained through Claisen rearrangement to purification by an alkali treatment to obtain liquid 2,2-diallylbisphenol A having a purity of about 95 wt.% or higher and adding seed crystals to the purified compound to crystallize it.</p> |
