HYDROQUINONE-CONTAINING POLYESTERS HAVING IMPROVED WHITENESS

摘要

A polyester containing polymerized units of hydroquinone; 4,4'-biphenol; and hydroxybenzoic acid; terephthalic acid and optionally isophthalic acid. A method of forming a polyester including first acylating a mixture of hydroquinone; 4,4'-biphenol; terephthalic acid and optionally isophthalic acid; and hydroxybenzoic acid; and then polycondensing the resulting acylated mixture. The polyester is suitable for uses such as lighting where high whiteness, high reflectivity and high heat resistance are desirable.