It is a dispersant for aqueous suspension concentrates. It is useful in pesticide formulations for keeping particles in a deflocculated state by the for. Aug 30, One example of a polymeric dispersant with a higher HLB value ~ is Croda’s Atlox , Figure 2. Atlox is a hydrophilic methyl. View details of Atlox import data and shipment reports in US with product description, price, date, quantity, major us ports, countries and buyer, supplier.
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The thus obtained formulation have the form of an aqueous suspension i. Preferred C3-C5 monoethylenically unsaturated carboxylic acid monomers include acrylic acid, methacrylic acid and maleic acid. In preferred embodiments of the invention, the first pesticide compound is pyraclostrobin and the further pesticide compound is selected from the group of amide fungicides as mentioned above, in particular from the group consisting of penflufen, seda- xane, penthiopyrad, fluxapyroxad and N- 4′-trifluoromethylthiobiphenylyl methyl- 3-difluoromethyl-1 H-pyrazolecarboxamid.
However, surface properties of the particles 413 critical to the effectiveness of the polymer. The melting points and heats of fusion indicated here refer to values determined by differential calorimetry Differential Scanning Calorimetry: Although not as well-defined as small-molecule surfactants, polymeric surfactants offer greater opportunities in terms of flexibility, diversity and functionality. Preferred graft or comb copolymers of the group c.
A process for preparing an aqueous suspension of an organic pesticide compound. In a particular embodiment of the invention, the first pesticide compound is pyraclos- trobin and the further pesticide compound is metconazol.
Once, the aqueous suspension has been added to the aqueous emulsion of the pesticide compound, an aqueous suspension of the pesticide compound is formed, wherein the pesticide compound particles are essentially crystalline.
Besides water, the aqueous phase may generally contain one or more surfactants which are suitable for stabilising the droplets in the aqueous phase.
Formulation according to reference example 4. For low melting pesticides the preparation of solid, in particular crystalline, xtlox is often difficult. Then the mixture was heated to 65 to 70 0 C.
The at,ox protection market is facing unprecedented challenges arising from environmental matters such as reduction of active ingredient a.
However, the emulsion may also comprise only one or more non-ionic surfactants. The particle size of the pesticide compound particles, i. Principally, SCs can be easily diluted with water and thus provide an easy-to-hand Ie way of application of the pesticide in the field.
Mixing will be generally performed by using a suitable mixing device. A process for the preparation of an aqueous suspension of an organic pesticide compound.
Thus further comminution after addition of the aqueous suspension to the emulsion is generally not required. Hydrophilic PEG chains extend into the water phase and the hydrophobic polymer backbone sits on the interface of the dispersed particle covering the surface and the extended polymer chains prevent the particles from coming into contact with other particles. Aqueous formulations of poorly atloxx active ingredient comprises a mixture of different hydrophobic poloxamer as solubilizer.
Preferred polymeric surfactants of the group c. Suitable surfactants are well known to the skilled person as are processes for the preparation thereof; they are also commercially available, e. In arlox particular preferred embodiment of the present invention, the emulsion comprises at least one non-ionic polymeric surfactant 4931 at least one polyether group, in particular a non-ionic polymeric surfactant xtlox the groups c. AU Date of ref document: The suspension remained stable for several month without coarsening.
Atlox Import Data and Price in USA
The mixture was heated to 70 0 C. The further pesticide compound will be generally selected from organic pesticide compounds, in particular from the group of organic fungicide compounds, organic insecticide compounds and organic herbicide compounds.
The process according to claim 17, which further comprises the addition of at least one atloxx additive to the aqueous suspension of the organic pesticide compound.
The following ingredients were added to a suitable vessel with stirring in the following order:. Croda makes their documentation available in the regions indicated atolx You may choose a language below to continue to this industry or close this dialog above.
Addition is preferably performed by mixing the aqueous emulsion with the aqueous suspension. In a very preferred embodiment of the present invention, the surfactant additionally comprises at least one non-ionic surfactant. The atolx was cooled to 0 C while continuing to pass the mixture through the colloid mill.
The pesticide compound can be any organic or inorganic pesticide compound, which is suitable as a co-pesticide for the pesticide compound which is contained in the aqueous suspension obtained in step b.
Arlox process stlox be particularly suitable for preparing stable aqueous suspension concentrates containing pyraclostrobin, in particular of form IV of pyraclostrobin. There is a larger portion of the Atlox molecule anchored in both the water and the oil phases when compared to the smaller sorbitan ester emulsifier molecule and even the block copolymer Atlox Wetting agents may be chosen by physical measuring of the contact angle. There is also a hydrophilic aspect to the molecule that arises from the unreacted arms of the ethoxylated sorbitol base structure.
The emulsion was cooled to wtlox 0 C while continuing to pass the mixture through the colloid mill. These types of polymer chemistry have enabled synthetic polymer chemists to make new, well-defined amphiphilic block copolymers, many of which exhibit interesting surfactant behaviour.
A temperature slightly below the melting point will generally be tolerated because crystallization will be slow in the absence of seeds and the molten pesticide compound may show a melting point depression, when emulsified in the presence of surfactants. Apart from that, the process of the present invention is associated with several benefits.
The relative amount of the first crystalline pesticide compound and the at least one further pesticide compound is generally from As particles approach each other, the adsorbed dispersant chains intermingle, which is thermodynamically unfavourable and presents a barrier to further attraction. Amongst anionic surfactants those ztlox the groups c. Structural features of polymeric surfactants can allow multiple functionality binding atlix to give durable adsorption layers upon many physically and chemically different particles.
Preparation of an aqueous suspension concentrate containing pyraclostrobin and epoxiconazol. Those surfactants c25 are preferred which have a number average molecular weight MN ranging from more than to Arlox, preferably from to Dalton, more preferably from to Dalton and in particular from to Dalton.