Enzyme functionalized coating compostions
AssigneeBASF SE
InventorsYun Han, Adrienne Huston Davenport, Dejan Caglic, Michael Krayer, Tuan Tran
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Abstract
Disclosed herein are coating compositions comprising one or more enzymes that retain enzymatic activity following film formation. Uses of such functionalized coating compositions to confer bioactive properties to surfaces are also provided. Methods of enhancing in-film enzyme activity by modulation of filler type, pigment volume concentration (PVC), neutralizer type, and/or coalescing agent level are also provided.
Claims25
A coating composition comprising a binder, a pigment, and one or more enzymes, wherein the coating composition is capable of forming a film when applied to a surface, wherein the pigment volume concentration (PVC) of the coating composition is below the critical pigment volume concentration (CPVC), and wherein at least one of the one or more enzymes retains at least about 5% activity in-film.
A method of maintaining the in-film activity of an enzyme in a coating composition, wherein the method comprises adding one or more enzymes to a coating composition comprising a pigment and a binder, wherein the pigment volume concentration (PVC) of the coating composition is below the critical pigment volume concentration (CPVC), wherein the enzyme is selected from the group consisting of a mannanase, a cellulase, an amylase, a lipase, a protease, a laccase, a lactonase, and a combination thereof, wherein the in-film enzyme activity increased by at least about 5% compared to a coating composition with a PVC of less than about 20%.
A method of maintaining the in-film activity of an enzyme in a coating composition, wherein the method comprises adding one or more enzymes to a coating composition comprising a pigment and a binder, wherein the pigment volume concentration (PVC) of the coating composition is below the critical pigment volume concentration (CPVC), wherein the one or more enzymes is a urease, wherein the in-film enzyme activity increased by at least about 5% compared to a coating composition with a PVC of greater than about 20%.
Dependencies are inferred from the claim text.