Polyesters including isosorbide as a comonomer blended with other thermoplastic polymers

US6140422A · kind A · utility

Assignee

• E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

• Garo Khanarian · Berkeley Heights, US
• Larry F. Charbonneau · Mendham, US
• Helmut Witteler · Monsheim, DE

Key dates

• Filing date: Apr 23, 1998
• Grant date: Oct 31, 2000
• Expiry date: Apr 23, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L101/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A polymer blend including a polyester and another thermoplastic polymer. The polyester includes terephthaloyl moieties and, optionally, other aromatic diacid moieties; and ethylene glycol moieties; optionally diethylene glycol moieties; isosorbide moieties; and, optionally one or more other diol moieties. The polyester has an inherent viscosity of at least about 0.35 dL/g.