| abstract |
An additive capable of accelerating (or improving) crystallization of a crystalline resin such as an aromatic polyester resin. A compound having a 9,9-bisarylfluorene skeleton represented by the following formula (1) is added to a crystalline resin (such as an aromatic polyester resin) to promote (or improve) crystallization. [Wherein ring Z is an aromatic hydrocarbon ring, R 1 and R 2 are substituents, X is a group — [(OR 3 ) nY] (wherein Y is a hydroxyl group, a mercapto group, glycidyl An oxy group or a (meth) acryloyloxy group, R 3 is an alkylene group, n is an integer of 0 or more) or an amino group, k is an integer of 0 to 4, m is an integer of 0 or more, and p is 1 or more. Indicates an integer. ] [Selection figure] None |