Biodegradable polyester and natural polymer compositions and films therefrom

US5821286A · kind A · utility

Assignees

• The United States of America, as represented by the Secretary of the Agriculture · US
• Biotechnology Research and Development Corporation · US

Inventors

• Wayne Xu · Westerville, US
• William M. Doane · Morton, US
• John W. Lawton, Jr. · Sioux Falls, US

Key dates

• Filing date: May 24, 1996
• Grant date: Oct 13, 1998
• Expiry date: May 24, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2201/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Biodegradable films include two biodegradable components. One component preferably is starch while the other component is a water insoluble, synthetic polymer, preferably a hydroxy-functional polyester.