Polymeric agent for obtaining a stable aqueous composition comprising particles in suspension

An aqueous composition, comprising a continuous phase, particles in suspension in the continuous phase, and a polymer comprising, in polymerized form:

• at least one A monomer selected from acrylic acid, methacrylic acid and their salts,
• at least one B monomer selected from alkyl acrylate and alkyl methacrylate, and
• at least one C monomer selected from monomers of formula (I):
• T-[(EO)n(PO)n′(BO)n″]-Z (I)
• in which:
• T represents a polymerizable functional group,
• [(EO)n(PO)n═(BO)n″] represents a polyalkoxylated chain of ethoxylated units EO, propoxylated units PO and butoxylated units BO, distributed into blocks, alternatively or statistically, with n, n′, and n″ representing, independently of each other, 0 or a whole number varying from 1 to 150, the sum of n, n′ and n″ not being zero, and
• Z represents a linear or branched fatty chain of at least 16 carbon atoms, and
• at least one cross linking monomer D.

A cosmetic composition, comprising water, a continuous phase, particles in suspension in the continuous phase, and a polymer comprising, in polymerized form:

• at least one A monomer selected from acrylic acid, methacrylic acid and their salts,
• at least one B monomer selected from alkyl acrylate and alkyl methacrylate, and
• at least one C monomer selected from monomers of formula (I):
• T-[(EO)n(PO)n′(BO)n″]-Z (I)
• in which:
• T represents a polymerizable functional group,
• [(EO)n(PO)n′(BO)n″] represents a polyalkoxylated chain of ethoxylated units EO, propoxylated units PO and butoxylated units BO, distributed into blocks, alternatively or statistically, with n, n′, and n″ representing, independently of each other, 0 or a whole number varying from 1 to 150, the sum of n, n′ and n″ not being zero, and
• Z represents a linear or branched fatty chain of at least 16 carbon atoms, and
• at least one cross linking monomer D.