abstract |
Copolyesters of terephthalic acid, phenylhydroquinone and 25 to 65 mole percent t-butylhydroquinone based on total moles of diol. These copolyesters are characterized by high melting points, good melt processability, high heat resistance and high oxidative stability. The copolyesters are useful for the manufacture of melt-spun fibers, extruded films and injection molded articles. |