Thermolysin for easy-cleaning of insect body stains
AssigneesToyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation
InventorsSongtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
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Abstract
A substrate or coating is provided that includes a protease with enzymatic activity toward a component of a biological stain. Also provided is a process for facilitating the removal of a biological stain is provided wherein an inventive substrate or coating including a protease is capable of enzymatically degrading of one or more components of the biological stain to facilitate biological stain removal from the substrate or said coating.
Claims17
A method of facilitating the removal of a biological stain on a substrate or a coating comprising:
- providing a liquid coating material comprising an alcohol selected from the group consisting methanol, ethanol, isopropyl alcohol, propanol and butanol, wherein the concentration of said alcohol in said liquid coating is from 20 to 40% wt. %, wherein the pH of the liquid coating is geater than 5.0, and associating a themolysin-like protease, wherein the protease has an activity in excess of 20,000 U/mg, with said liquid coating material to form a liquid bioactive coating material such that said protease is capable of enzymatically degrading a component of a biological stain.
A composition for facilitating biological stain removal comprising:
- a liquid bioactive coating material comprising an alcohol selected from the group consisting of methanol, ethanol, isopropyl alcohol, propanol and butanol, wherein the concentration of said alcohol in said liquid coating is from 20 to 40% wt. %, wherein the pH of the liquid coating is grater than 5.0;
- and
- a thermolysin-like protease, wherein the protease has an activity in excess of 20,000 U/mg, said protease capable of degrading a biological stain component.
Dependencies are inferred from the claim text.