Biodegradable aliphatic-aromatic polyesters

US8193298B2 · kind B2 · utility

Assignee

• Novamont S.p.A. · IT

Inventors

• Catia Bastioli · Novara, IT
• Tiziana Milizia · Novara, IT
• Giovanni Floridi · Novara, IT
• Andrea Scaffidi Lallaro · Omegna, IT
• Giandomenico Cella · Novara, IT
• Maurizio Tosin · Borgosesia, IT

Key dates

• Filing date: Mar 17, 2006
• Grant date: Jun 5, 2012
• Expiry date: Mar 17, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31786
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Biodegradable aliphatic/aromatic copolyester comprising 50 to 60 mol % of an aromatic dicarboxylic acid and 40 to 50 mol % of an aliphatic acid, at least 90% of which is a long-chain dicarboxylic acid (LCDA) of natural origin selected from azelaic acid, sebacic acid, brassylic acid or mixtures thereof; and a diol component.