FIELD: chemistry.
SUBSTANCE: dispersant is a copolymer of (meth)acrylic acid with an alkyl oxide monomer, having a polymerisable functional group and terminated by a hydrogen atom or an alkyl group having 1-4 carbon atoms. The thickener is an associative thickener containing at least one hydrophobic group which is a polystyrylphenyl, preferably selected from distyrylphenyl, tristyrylphenyl and mixtures thereof. More preferably, the hydrophobic group is tristyrylphenyl.
EFFECT: dispersant-thickener combination enables to enhance gloss retention of a paint film over time, while providing the aqueous composition with the required rheological properties.
28 cl, 2 tbl, 18 ex
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