Patent ID: 8324305

Claim:
A product, having a solvent content of less than 5%, and comprising: a wax selected from the group consisting of i) a polyethylene wax, ii) an oxidized polyethylene wax, and iii) a copolymer comprising, in polymerized form, ethylene and at least one selected from the group consisting of vinyl acetate, acrylic acid, methacrylic acid, an acrylate, and a methacrylate, wherein the wax comprises polymer particles comprising an effect substance, and wherein the wax is obtained by a process comprising: a) miniemulsion polymerizing monomers in the presence of the effect substance and a wax-immiscible solvent, to obtain a dispersion comprising the polymer particles, wherein the effect substance is distributed within the polymer particles; b) incorporating the polymer particles into the wax by phase transfer in a mixing apparatus, to obtain an intermediate product; and c) separating the solvent from the intermediate product, to obtain the product.