Rhodia Chimie

C&eacute;cile Bonnet-Gonnet

Mathias Destarac

Vance Bergeron

Mathieu Joanicot

Gilda Maria Lizarraga

Roland Reeb

Olivier Anthony

Giles Guerin

Jean-Christophe Castaing

Roya Farhoosh

Jean-Marie Schwob

The invention concerns the use, in an aqueous spray mixture comprising a phytosanitary formulation, of an anti-leaching agent comprising: at least a polyhydroxyl and/or polycarboxyl polymer or copolymer; at least a crosslinking agent comprising a metal selected among columns IVA, IB and IIIB of the periodic table; said anti-leaching agent being, in the aqueous spray mixture, in the form of an aqueous solution or dispersion having a polymer or copolymer concentration such that the viscosity of the anti-leaching agent is not more than 10 times the viscosity of the aqueous solution in polymer or copolymer without crosslinking agent, having the same concentration.

Use of crosslinked polymers as anti-leaching agents

The invention relates to water-soluble block copolymers comprising at least one block of hydrophobic nature and at least one block of hydrophilic nature, the block of hydrophobic nature exhibiting hydrophilic units in an amount of between 33% and 99% by weight with respect to the total weight of the units of the hydrophobic block. These copolymers are preferably diblocks or triblocks and are prepared by a polymerization process referred to as a living or controlled. Control of their hydrophilic-lipophilic balance makes it possible to adjust their solubility in water and their self-association properties. These copolymers can be used in particular as adhesion agents or wetting agents.

Water-soluble block copolymers comprising a hydrophilic block and a hydrophobic block

Growing community of inventors

Paris, France

Cécile Bonnet-Gonnet

Growing community of inventors

Paris, France

C&eacute;cile Bonnet-Gonnet

Cécile Bonnet-Gonnet