Biodegradable polyesters

US6120895A · kind A · utility

Assignee

• BASF SE

Inventors

• Christoph Kowitz · Weinheim, DE
• Peter Bauer · Ludwigshafen, DE
• Dieter Bernhard Beimborn · Bad Dürkheim, DE
• Bernd Bruchmann · Ludwigshafen, DE
• Uwe Faller · Bischofswerda, DE
• Martin Laun · Mannheim, DE
• Udo Pagga · Ludwigshafen, DE
• Gunter Pipper · Bad Dürkheim, DE
• Volker Warzelhan · Bad Dürkheim, DE

Key dates

• Filing date: Mar 17, 1999
• Grant date: Sep 19, 2000
• Expiry date: Mar 17, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2913
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Biodegradable polyesters based on PA0 A) 95-99.99 mol % of at least one polyester A containing as monomeric building blocks of an acid component comprising PA1 a.sub.11) 20-95 mol % of at least one aliphatic or cycloaliphatic dicarboxylic acid or its ester-forming derivative and PA1 a.sub.12) 5-80 mol % of at least one aromatic dicarboxylic acid or its ester-forming derivative and PA0 at least one dihydroxy compound or at least one amino alcohol or their mixtures, and PA0 B) 0.01-5 mol % of a mixture comprising mono-, bi-, tri-, tetra- and higher-nuclear isocyanurates or corresponding compounds containing two, three or four functional groups capable of reacting with the end groups of polyester A, or mixtures of the isocyanurates and the corresponding compounds, as well as molding compositions comprising said polyesters, their manufacture and their use in the manufacture of moldings, filsm, fibers and coatings.