Patent ID: 8758790

Claim:
A method of preparing a paint or lacquer, comprising adding one or more microencapsulated oil phase active components to a paint or lacquer base, the microcapsules being formed by a process conducted at a constant temperature comprising the steps of: (a1) preparing an emulsion from an oil phase consisting essentially of one or more oil phase active components and, optionally, one or more additional oil components and/or emulsifiers; (a2) treating said emulsion with an aqueous solution of one or more anionic polymers to form a matrix; (a3) contacting said matrix with an aqueous solution of one or more cationic polymers to form capsules; and (a4) optionally, separating said capsules from the aqueous phase; or (b1) preparing an emulsion from an oil phase consisting essentially of one or more oil phase active components and, optionally, one or more additional oil components and/or emulsifiers; (b2) treating said emulsion with an aqueous solution of one or more cationic polymers to form a matrix; (b3) contacting said matrix with an aqueous solution of one or more anionic polymers to form capsules; and (b4) optionally, separating said capsules from the aqueous phase, wherein said microcapsules have an average diameter of 0.1 to 25 μm.