Bioactive protein-polymer compositions for stain removal

US11692156B2 · kind B2 · utility

Assignees

• Toyota Motor Corporation · JP
• Regents of the University of Minnesota · US

Inventors

• Andreas Buthe · Steinfurt, DE
• Ping Wang · North Oaks, US
• Songtao Wu · Ann Arbor, US
• Hongfei Jia · Ann Arbor, US
• Masahiko Ishii · Okazaki, JP
• Minjuan Zhang · Ann Arbor, US

Key dates

• Filing date: Jun 12, 2020
• Grant date: Jul 4, 2023
• Expiry date: Nov 18, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D2111/18
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Bioactive coatings that include a base and a protein associated with the base for actively promoting the removal of organic stains are provided. In aspects, bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.