AQUEOUS POLYACRYLATE EMULSIONS, PREPARATION METHOD THEREOF AND USE OF SAME IN THE OIL DOMAIN

摘要

The invention relates to aqueous emulsions that are based on copolymers of (meth)acrylate(s) of n-alkyl, with n varying between 6 and 60. The inventive emulsions are obtained by means of radical aqueous emulsion polymerisation, following the pre-mixing of the n-alkyl (meth)acrylate monomer(s) in a solvent or water-miscible dispersant, with n varying between 14 and 60. The emulsions are particularly suitable for use in the oil domain where they can be used (i) as they are in order to inhibit the deposition of paraffins contained in crude petroleum oils or (ii) diluted in one or more solvents. Said emulsions can also advantageously be used pure or diluted as additives for the deparaffining of crude oils in order to obtain lubricating oils for example.