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US 11,597,853 B2Granted
Coatings containing polymer modified enzyme for stable self-cleaning of organic stains
AssigneesToyota Motor Corporation, Regents of the University of Minnesota
InventorsHongfei Jia, Ping Wang, Liting Zhang, Andreas Buthe, Xueyan Zhao, Songtao Wu, Masahiko Ishii, Minjuan Zhang
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Abstract
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.
Claims14
A water-stabilized bioactive coating composition comprising:
- a base;
- an enzyme associated with said base;
- said enzyme associated with one or more branched polyoxyethylene to form a chemically modified enzyme;
- and
- a first polyoxyethylene associated with said base, said first polyoxyethylene independent of said enzyme;
- wherein said base, said enzyme, and said first polyoxyethylene form a water-stabilized active coating composition, and wherein said chemically modified enzyme is dispersed in said base as aggregates having an average particle diameter of up to 5 micrometers.
3 more elements
Dependencies are inferred from the claim text.