| 摘要 |
Provided is an optical film, which is made of a halogenated polycarbonate, has high heat resistance and high dimensional stability to heat, and is flame retardant. The optical film is obtained by producing a halogenated polycarbonate by a solution-casting method. The halogenated polycarbonate has a glass transition temperature of 230ºC or higher, a weight average molecular weight of more than 50,000, and an oligomer content of 0.6% by weight or less. |
