B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 17/00 (2006.01)
Patent
CA 2371229
The invention relates to a solid composition comprising at least one surfactant with a low melting point and at least one polymer chosen from polymers which can be obtained from the following: (i) an unsaturated sulphonic or carboxylic acid and/or unsaturated carboxylic polyoxyalkylenated ester and an optionally unsaturated monomer,optionally comprising the functions of an ester, an amide or an aromatic nucleus; (ii) an unsaturated sulphonic or carboxylic acid, whereby the polymer comprises hydrophobic grafts; (iii) a monomer which is unsaturated and includes hydroxyl groups or hydroxyl precursors, whereby the polymer includes hydrophobic grafts; (iv) polypeptides comprising hydrophobic grafts; (v) polysaccharides which are highly depolymerized and comprise hydrophobic grafts. The invention also relates to a method for the production of said composition, whereby an aqueous solution containing the surfactant and polymer is dried, and to the use of said composition as a constitutive element of phytosanitary formulations.
La présente invention a pour objet une composition se présentant sous une forme solide, comprenant au moins un tensioactif à bas point de fusion, et au moins un polymère choisi parmi ceux obtenus à partir: (i) d'acide carboxylique ou sulfonique insaturé, et/ou d'ester polyoxyalkyléné d'acide carboxylique insaturé, et éventuellement d'un monomère insaturé éventuellement porteur de fonctions ester, amide, ou d'un noyau aromatique; (ii) d'acide carboxylique ou sulfonique insaturé, le polymère portant des greffons hydrophobes; (iii) de monomère, insaturé, porteur de groupements hydroxyles ou précurseurs d'hydroxyles, polymère portant des greffons hydrophobes; (iv) des polypeptides portant des greffons hydrophobes; (v) des polysaccharides fortement dépolymérisés portant des greffons hydrophobes. L'invention concerne de même un procédé de préparation d'une telle composition consistant à sécher une solution aqueuse comprenant le tensioactif et le polymère, ainsi que l'utilisation d'une telle composition comme élément constitutif de formulations phytosanitaires.
Hecaen Jean-Pierre
Taisne Laurent
Rhodia Chimie
Robic
LandOfFree
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