摘要:
The invention concerns granules obtainable by drying an inverse emulsion, dispersed in an external aqueous phase: a) the inverse emulsion comprising an internal aqueous phase, including a hydrophilic active material, dispersed in an internal organic phase, said inverse emulsion including at least a non-ionic surfactant and/or at least an amphiphilic block polymer, and/or at least a cationic surfactant; b) the external aqueous phase including: at least a polyalkylated non-ionic surfactant and/or at least a polalkylated amphiphilic non-ionic polymer; at least a water soluble or water dispersible polymer in solid form in the presence of a water content of not more than 10 wt. % relative to the weight of said polymer and whereof the glass transition temperature is higher than 25° C., preferably higher than 50° C. The granules, once dispersed, enable to obtain a multiple emulsion.
摘要:
The invention concerns granules obtainable by drying an inverse emulsion, dispersed in an external aqueous phase: a) the inverse emulsion comprising an internal aqueous phase, including a hydrophilic active material, dispersed in an internal organic phase, said inverse emulsion including at least a non-ionic surfactant and/or at least an amphiphilic block polymer, and/or at least a cationic surfactant; b) the external aqueous phase including: at least a polyalkylated non-ionic surfactant and/or at least a polalkylated amphiphilic non-ionic polymer; at least a water soluble or water dispersible polymer in solid form in the presence of a water content of not more than 10 wt. % relative to the weight of said polymer and whereof the glass transition temperature is higher than 25° C., preferably higher than 50° C. The granules, once dispersed, enable to obtain a multiple emulsion.
摘要:
The invention concerns granules obtainable by drying an inverse emulsion, dispersed in an external aqueous phase: a) the inverse emulsion comprising an internal aqueous phase, including a hydrophilic active material, dispersed in an internal organic phase, said inverse emulsion including at least a non-ionic surfactant and/or at least an amphiphilic block polymer, and/or at least a cationic surfactant; b) the external aqueous phase including: at least a polyalkylated non-ionic surfactant and/or at least a polalkylated amphiphilic non-ionic polymer; at least a water soluble or water dispersible polymer in solid form in the presence of a water content of not more than 10 wt. % relative to the weight of said polymer and whereof the glass transition temperature is higher than 25° C., preferably higher than 50° C. The granules, once dispersed, enable to obtain a multiple emulsion.
摘要:
The invention concerns granules obtainable by drying an inverse emulsion, dispersed in an external aqueous phase: a) the inverse emulsion comprising an internal aqueous phase, including a hydrophilic active material, dispersed in an internal organic phase, said inverse emulsion including at least a non-ionic surfactant and/or at least an amphiphilic block polymer, and/or at least a cationic surfactant; b) the external aqueous phase including: at least a polyalkylated non-ionic surfactant and/or at least a polalkylated amphiphilic non-ionic polymer; at least a water soluble or water dispersible polymer in solid form in the presence of a water content of not more than 10 wt. % relative to the weight of said polymer and whereof the glass transition temperature is higher than 25 ° C., preferably higher than 50° C. The granules, once dispersed, enable to obtain a multiple emulsion.
摘要:
A solid composition containing at least one surfactant with a low melting point and at least one polymer 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. A method for the production of the composition involves drying an aqueous solution containing the surfactant and the polymer. The composition is useful as a constitutive element of phytosanitary formulations.
摘要:
The invention concerns water re-dispersible granules obtainable by drying an emulsion comprising an active matter in the form of a hydrophobic, a non-ionic surfactant selected among polyoxyalkylene derivatives, and a water soluble or water dispersible compound selected among polymers: (i) obtained by polymerising an ethylenically unsaturated carboxylic acid, or anhydride monomer (I), and an ethylenically unsaturated carboxylic acid polyoxyalkylene ester (III), and optionally an ethylenically unsaturated linear or branched hydrocarbon monomer (II); or obtained by polymerising said monomer (I), and a vinyl type monomer (II′), comprising at least a C2-C10 linear or branched, or cyclic aliphatic radical; (ii) obtained by polymerising at least a monomer of formula (I) comprising a hydrophobic graft; (iii) polypeptides of natural or synthetic origin; (iv) highly depolymerised polysaccharides comprising at least a hydrophobic graft.