Thermoplastic starch compositions

US8772378B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Norman Scott Broyles · Hamilton, US
• Pier-Lorenzo Caruso · Frankfurt am Main, DE
• Emily Charlotte Boswell · Cincinnati, US
• Robert Earl Magness · Lebanon, US
• Ludwig Busam · Idstein, DE
• Jorg Harren · Baesweiler, DE
• Laurent Wattebled · Düsseldorf, DE

Key dates

• Filing date: Nov 22, 2011
• Grant date: Jul 8, 2014
• Expiry date: Apr 27, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L67/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to improvements in prevention of discoloration of thermoplastic starch materials and their blends with other thermoplastic materials.