Rhodia Chimie

Pascal Chapon

Bruno Thierry Bavouzet

Emma Hills

Dominic Wai-Kwing Yeung

Tagged scale-inhibiting polymers, compositions comprised thereof and preventing or controlling scale formation therewith, the tagging units being units deriving from a monomer having the formula XC&#x2550;CYY' wherein X is a hydrogen atom, or a C-Calkyl radical, Y is a hydrogen atom or a C-Calkyl radical, Y&#x2032; is a radical having formula -L-Arom, wherein L is a covalent bond or a divalent organic linking group optionally comprising heteroatoms, and Arom is a group comprising at least two conjugated aromatic rings, said rings comprising conjugated carbon atoms, and, linked to said carbon atoms, hydrogen atoms or other substituents.

Tagged scale inhibiting polymers, compositions comprised thereof and preventing or controlling scale formation therewith

The invention concerns the use as thickening agent of an aqueous composition comprising at least 5 wt. % of one or several phase-organized surfactant(s) comprising giant micelles whereof the average length represents at least four times the mean diameter, of at least a charged statistic amphiphilic polymer soluble in the aqueous composition, said amphiphilic polymer being used in a content such that the viscosity of the aqueous composition comprising the amphiphilic polymer is at least three times higher than that of the composition without amphiphilic polymer and than that of an aqueous composition comprising only the amphiphilic polymer. The invention also concerns aqueous compositions comprising said amphiphilic polymer, and are particularly designed for cosmetic uses.

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Toulouse, France

Pascal Chapon