NONCRYSTALLINE FORM OF FLUORENE DERIVATIVE AND PROCESS FOR PREPARATION THEREOF

摘要

Provided are a novel noncrystalline form of 9,9-bis(4-(2- hydroxyethoxy)phenyl)fluorene which can maintain constant quality and which serves as an excellent starting material for polymers, and a process for the preparation of the noncrystalline form of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene. The novel noncrystalline form of 9,9-bis(4-(2-hydroxyethoxy)- phenyl)fluorene can be prepared by cooling and solidifying a melt of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene. The novel noncrystalline form of 9,9-bis(4-(2-hydroxyethoxy)- phenyl)fluorene is less liable to cause dust explosion or health hazard, and has a property that the particle size can be freely changed by pulverization or the like in accordance with equipment or use, said property being advantageous to industrial handling.