Water soluble polymers for agrochemical compositions
AssigneeLamberti SPA
InventorsFilippo QUAGLIA, Dario FORNARA, Rocco DI MODUGNO, Cristina PICCO, Alessandro D'ALOIA, Arianna BENETTI, Giovanni FLORIDI, Giuseppe LI BASSI
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Abstract
Agrochemical aqueous compositions containing at least one organic, solid agrochemically active ingredient which is insoluble in water and, as dispersing and wetting agent, a water soluble polymer based on one or more ethylenically unsaturated carboxylic acids, from 5% to 55% of the carboxylic groups of said water soluble polymer being esterified with a polyalkoxylated polystyrylphenol.
Claims21
1-20. (canceled)
An agrochemical aqueous compositions comprising:
- at least one organic agrochemically active ingredient that is insoluble in water, and
- as a dispersing agent, a carboxylated water soluble polymer wherein:
- a) at least 85% by moles of monomer units derive from ethylenically unsaturated C3-C5 mono carboxylic acids, bi-carboxylic acids or anhydrides thereof and from 0 to 15% by moles of monomer units derive from one or more non-carboxylated ethylenically unsaturated monomers, and
- b) from 5% to 55% of carboxylic acid groups of the carboxylated water soluble polymer are esterified with at least one polyalkoxylated polystyrylphenol.
A carboxylated water soluble polymer comprising a polymer prepared by:
- i) radically polymerizing at least 85% by moles of ethylenically unsaturated C3-C5 mono carboxylic acids, bi-carboxylic acids or anhydrides thereof and from 0 to 15% by moles of one or more noncarboxylated ethylenically unsaturated monomers to produce a carboxylated water soluble polymer, and
- ii) esterifying the carboxylated water soluble polymer with from 5% to 55% of equivalents, based on the carboxylic acid groups of the polymer, of a polyalkoxylated polystyrylphenol, wherein:
- a) at least 85% by moles of monomer units derive from ethylenically unsaturated C3-C5 mono carboxylic acids, bi-carboxylic acids or anhydride thereof and from 0 to 15% by moles of monomer units derive from one or more non-carboxylated ethylenically unsaturated monomers, and
- b) from 5% to 55% of carboxylic acid groups of the polymer are esterified with at least one polyalkoxylated polystyrylphenol.
Dependencies are inferred from the claim text.