The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2026
Filed:
Jul. 10, 2020
Agrana Beteiligungs-aktiengesellschaft, Vienna, AT;
Barbara Fahrngruber, Pottenbrunn, AT;
Marnik Michel Wastyn, Schwechat, AT;
Martin Kozich, Vienna, AT;
AGRANA Beteiligungs-Aktiengesellschaft, Vienna, AT;
Abstract
Described is a method for producing a thermoplastic starch, wherein a mixture is extruded comprising starch and a polyol, preferably selected from the group comprising polyethylene glycol, monosaccharides, sugar alcohols and mixtures thereof, in a quantity of 0 to 9.9 wt. % of the mixture, and an epoxide, selected from the group comprising epoxidised vegetable oils, and mixtures thereof, in a quantity of 0.1 to 6 wt. % of the mixture, the mixture further containing an acid, preferably a carboxylic acid selected from the group consisting of citric acid, malic acid or tartaric acid, in a quantity of 0.1 to 1 wt. % of the mixture, and being devoid of polyester urethane. The invention also describes a thermoplastic starch produced in this way, a compound produced with the aid of the thermoplastic starch, and a film produced from such a compound or an injection-moulded item produced from such a compound.