Monomer (bisphenol, bisalcohol) : Resin raw material

Bisphenol and bisalcohol monomers have fluorene structures. They have high heat resistance, excellent optical properties (a high refractive index and low birefringence), and excellent electrical characteristics (low dielectric constant). These monomers can be used as materials for various types of resin such as epoxy resin, polyester, acrylate, and polycarbonate.

Advantages

High heat resistance
High transparency
High refractive index
Low birefringence
Low dielectric constant

Example of usage

Monomers are optimal source for various types of resin listed below.

Polyester
Epoxy resin
Acrylate
Polycarbonate
Polyurethane

Fluorene derivatives products

Chemical structural formula Image
Chemical structural formula

Physical properties

Characteristics		BPF	BCF	BPEF
R1		H	CH3	H
R2		OH	OH	OC2H4OH
Name		Bisphenol fluorene	Biscresol fluorene	Bisphenoxyethanol fluorene
CAS.No.		3236-71-3	88938-12-9	117344-32-8
Appearance		White solid	White solid	White solid
Molecular weight		350.4	378.5	438.5
Melting temperature(℃)		223〜224	218〜219	158〜165
Refractive index (D line)		1.63	1.63	1.62
Solubility (20wt%)	Acetone	○	△	○（Humidified solution）
	Toluene	○	△	×
	Methanol	◎	○	× Also soluble in MEK and dioxane

We have been developing more monomers with structures not shown in the physical property table.