Patent ID: 8524260

Claim:
A method for producing an aqueous formulation comprising at least one oil, the method comprising: a) mixing at least one associative polymer comprising, in polymerized form: at least one (meth)acrylic acid monomer; at least one (meth)acrylic ester monomer; and at least one associative hydrophobic monomer, with the at least one oil and water, to get a mixture, in proportions such that the at least one oil is at least 4% based on total weight of the mixture, b) adjusting a pH of the mixture in a) to a value greater than 6; c) precipitating the mixture after b) by adjusting the pH to a value less than 6, to obtain a dispersion in water of constituent particles of the at least one associative polymer and of the at least one oil; and d) optionally, isolating the constituent particles obtained after c) by removing the water.