Patent ID: 9745475
Date: 2017-08-29
CPC Classifications: B82Y,C01P,C08L,C09C,C09D

Claim:
1. A method for surface treating particles of mineral matter, comprising contacting said particles with a polymeric aqueous emulsion obtained by polymerization of: i) an acrylic acid or methacrylic acid monomer, ii) an alkyl acrylate or alkyl methacrylate monomer, iii) a monomer having at least one hydrophobic group, said hydrophobic group comprising between 6 and 100 carbon atoms, in the presence, during said polymerization, of: iv) at least one polyglycerol of formula (I): in which: R represents hydrogen, a carbon group comprising between 8 to 22 carbon atoms, or an ester group functionalized by a carbon group comprising between 8 to 22 carbon atoms, and n represents an integer or decimal number greater than 1, and v) at least one anionic surfactant agent.